This class contains interactive video distribution processes,
systems, and elements thereof, which are characterized by point-to-multipoint
system configurations, and which are used for the unidirectional
distribution or delivery of motion video data resulting from interactions
between systems operators (access or service providers) or users
(subscribers) and systems elements. These systems include dedicated
communications systems, such as television distribution systems,
which primarily distribute or deliver motion video data in the manner
indicated, but which may, in addition, provide a framework for further,
diverse data communications or services in either unidirectional
or bidirectional form. Typically, system operators interface with
transmitter-side elements or users interface with receiver-side
elements in order to facilitate, through interaction with such elements,
the dynamic control of data processing or data flow at various points
in the systems. This interaction is typically occasional or intermittent
in nature.
SCOPE OF THE CLASS
(1)
Note. This class includes subject matter directed to the transmission
of video data. Systems which are concerned with the transmission
of nonvideo data, such as systems which provide audio data or data
in the generic sense, are classified elsewhere. See the Search Class
notes below.
(2)
Note. This class includes subject matter directed to the transmission
of motion video data. Systems which are solely concerned with the
delivery of still video data or picture data, such as facsimile
systems, are classified elsewhere. See the Search Class notes below.
(3)
Note. This class is directed to the unidirectional transmission
of motion video data. Systems concerned with the bidirectional transmission
of motion video data, such as video conference systems, are classified elsewhere.
See the Search Class notes below.
(4)
Note. This class includes systems which are characterized
by point-to-multipoint network architectures with point-to-multipoint
connectivity. Systems which are solely concerned with the delivery
of motion video data through discrete point-to-point connections,
such as interconnected computer networks, are classified elsewhere.
See the Search Class notes below.
(5)
Note. This class is directed to systems which enable occasional
or intermittent user interaction. Systems which fundamentally require
frequent or continuous user interaction are classified elsewhere.
See the Search Class notes below.
(6)
Note. This class is limited to interactive video distribution
processes and systems. Claimed subject matter which is directed
to particular receiver details which do not facilitate interactive
video distribution, such as television receiver signal processing
circuitry, are classified elsewhere. See the Search Class notes
below.
Communications: Electrical, for telemetering, condition responsive indicating
systems, selective systems, and repeaters in unspecified type communication
lines or channels.
Computer Graphics Processing and Selective Visual
Display Systems, appropriate subclasses for user interface features
and functions which are not particularly directed to interactive
video distribution systems.
Television, appropriate subclasses for television cameras, special
applications, receiver monitoring, testing, and measuring systems, bandwidth
reduction systems, signal formatters, image signal processing circuitry,
and displays.
Television Signal Processing for Dynamic Recording
or Reproducing, appropriate subclasses for dynamic recording, or
reproducing, of black and white television using a nonmagnetic medium,
dynamic recording or reproducing of color television, and photographing displayed
images.
Telecommunications, for generic modulated carrier wave communication systems,
particularly
subclass 2.01 for audience survey or program distribution use
accounting, and subclasses 3.01-3.06 for wireless modulated carrier
wave distribution system.
Data Processing: Financial, Business Practice, Management,
or Cost/Price Determination, appropriate subclasses for business methods and particularly
subclass 26 and 27 for electronic shopping.
Electrical Computers and Digital Processing Systems:
Multiple Computer or Process Coordinating, particularly
subclasses 217 through 219for systems which provide remote data access using
interconnected networks or by providing access to remote server.
SECTION III - GLOSSARY
ACCESS
Any means of establishing logical or physical communication
with a computer or communications system. Also, any means of obtaining
the use of such a system or any actions that result in a flow of
information involving such a system.
AMPLIFIER
A unidirectional device that is capable of delivering
an enlargement of the waveform of the electric current, voltage,
or power supplied to it.
ANTENNA
That part of a transmitting or receiving system that
is designed to radiate or to receive electromagnetic waves, such
as radio waves.
AUDIO
Pertaining to frequencies corresponding to a normally audible
sound wave. Note: These frequencies range roughly from 15 Hz to
20,000 Hz.
BANDWIDTH
The range of frequencies within which performance, with
respect to some characteristic, falls within specific limits. For
example, the specified frequency range over which the amplitude
response does not vary more than a defined amount. Bandwidth is
commonly defined at the points where the response is 3 dB less than
the reference value (0.707 root-mean-square voltage ratio). In broadband
networks, the frequency range that a component, circuit, or system
passes or uses. Also, the range of frequencies, expressed in hertz,
that can pass over a given channel. For example, a television channel
typically occupies a bandwidth of 6,000,000 Hz (6 MHz), and cable
systems typically occupy 5-300 MHz or higher of the electromagnetic
spectrum.
BLANKING INTERVAL
In television systems, the range of a composite picture signal
containing either vertical or horizontal synchronizing information.
This range is separate from the range containing picture information.
BLOCK
To restrict the passage, progress, or exchange of data.
BUFFER
A device in which data are stored temporarily, in the course
of transmission from one point to another and used to compensate
for a difference in the flow of data or time of occurrence of events
when transmitting data from one device to another. Also, the act
of such temporary storage of data.
CABLE
A transmission line or group of transmission lines mechanically
assembled into a complex flexible form. Note: The conductors are
insulated and are closely spaced and usually have a common outer
cover which may be an electric portion of the cable. In communication
cables, an insulated conductor or combination of electric conductors
that are insulated from each other. A shield is usually provided.
Further, an assembly of one or more conductors within an enveloping
protective sheath, constructed to allow use of the conductors separately
or in groups, such as a coaxial cable or optical cable.
CATEGORY
Any of several fundamental and distinct classes to which
entities or concepts belong. Also, a division within a system of
classification.
CELLULAR
Of, relating to, or consisting of cells. In a radio frequency
system, that which characterizes a system in which a geographical
area is divided into small sections, each served by a transmitter
of limited range so that any available radio frequency channel can
be used in different parts of the area simultaneously.
CHANNEL
A single path for transmitting electric signals, usually
in distinction from other parallel paths. A band of frequencies.
Note: The word "path" is to be interpreted in
a broad sense to include separation by frequency division or time
division. The term "channel" may signify either a
one-way path, providing transmission in one direction only, or a
two-way path, providing transmission in two directions.
CLIENT
The requesting device in a communications network. In a
client-server network, for example, a user interface could reside
in the client workstation while the storage and retrieval functions
could reside in the server database.
CLIP
A portion of motion video material consisting of plural fields
or frames of video data.
COAX (COAXIAL CABLE)
A two-conductor (center conductor, shield system), concentric,
constant impedance transmission line used as the trunk medium in
the baseband system. In broadband networks, a cable with two conductors
where one completely surrounds the other. Coax cables are unbalanced transmission
lines that have an outer conductor that shields the center conductor
from electrostatic interference. The two conductors are spaced by
an insulating dielectric that, depending on the mechanical and material
configuration, affects the speed, attenuation, and impedance of
transmission.
COMMERCIAL
An advertisement provided within broadcast or point-to-point
networks.
CONTROL
To regulate the passage, progress, or exchange of data.
DATA
Any representation of a digital or analog quantity to which
meaning has been assigned. A representation of facts, concepts,
or instructions, in a manner suitable for communication, interpretation,
or processing by humans or by automatic means.
DELIVERY
The act of sending something, such as motion video data,
to an intended destination.
DEMOGRAPHICS
The statistical characteristics of human populations, such
as age or income, used especially to identify markets.
DIPLEX FILTER
A filter having a low pass and a high pass filter that divide
the frequency spectrum into two separate frequency bands that do
not overlap. The diplex filter allows the placement of duplex signals
onto a cable by the use of frequency division multiplexing.
DISTRIBUTION
A general term used, by reason of specific physical or electrical
characteristics, to denote application or restriction of the modified
term, or both, to that part of an electrical system used for conveying
energy to the point of utilization from a source or from one or
more main receiving stations.
ELECTRONIC PROGRAM GUIDE (EPG)
A display interface which allows user s interaction with a
program grid having intersecting row(s) and column(s) of video program
information.
ENCRYPTION
The process of encoding data to prevent unauthorized access,
especially during transmission. Encryption is usually based on a
key that is essential for decoding.
FIBER (OPTICAL CABLE)
Fiber: any filament or fiber, made of dielectric materials,
that guides light, whether or not it is used to transmit signals.
Optical cable: a fiber, multiple fibers, or fiber bundle in a structure
fabricated to meet optical, mechanical, and environmental specifications
which is used for the transmission of signals.
GENRE
A category of video composition characterized by a particular
style, form, or content.
GEOGRAPHIC
Belonging to or characteristic of a particular region.
HEADEND
In broadband networks, the central location that has access
to signals traveling in both inbound and outbound directions. The
logical root of the broadband coaxial cable system.
INTERMEDIATE FREQUENCY (IF)
A frequency to which a signal wave is shifted locally
as an intermediate step in transmission or reception.
LOCAL OSCILLATOR
An oscillator in a superheterodyne circuit whose output is
mixed with the received signal to produce a sum or difference frequency
equal to the intermediate frequency of the receiver.
MESSAGE
In telecommunications, a combination of characters and symbols
transferred from one point to another.
MICROWAVE
Pertaining to the portion of the radio frequency spectrum
above 1 GHz.
MODEM
A contraction of MOdulator-DEModulator, an equipment
that connects data terminal equipment to a communication line.
In broadband networks, a modulator-demodulator device. The modulator
encodes digital information onto an analog carrier signal by varying
the amplitude, frequency, or phase of that carrier. The demodulator
extracts digital information from a similarly modified carrier.
A modem transforms digital signals into a form suitable for transmission
over an analog medium.
MONITORING
In communications, the process of observing or tracking system
activities.
NEAR VIDEO-ON-DEMAND (NVOD)
A programming event that is provided upon request, in which
the event is broadcast on plural channels in time-staggered intervals.
These events are distributed to all subscribers, but enabled on
an individual basis through an interactive process. Due to the mode
of distribution, requests can be processed "near on-demand",
with a delay which is inversely proportional to the broadcast interval.
NETWORK
A series of points interconnected by communication channels.
Also, any set of devices or subsystems connected by links joining
(directly or indirectly) a set of terminal nodes. Also, an arrangement
of components or nodes and interconnecting branches.
NOISE
In data transmissions, generally, an undesired disturbance
within the useful frequency band. Note : undesired disturbances
within the useful frequency band produced by other services may
be called interference. In broadband networks, an unwanted signal
in a communications system. White noise (or random noise) is random
energy (e.g., shot noise and thermal noise) that has a uniform distribution
of energy across the bandpass. The analogy for white noise is white
light. Johnson noise (thermal) is the noise generated by electron
movement (current through a resistor) above absolute zero. The noise
level is proportional to temperature. Shot noise is the type of
unrandom noise generated when current flows across an abrupt junction.
Shot noise is characteristic of semiconductor devices.
PAY-PER-VIEW (PPV)
A programming event that is provided upon request, in which
the event is broadcast on a particular channel at a particular time.
These events are distributed to all subscribers, but enabled on
an individual basis through an interactive process.
PERSONAL COMPUTER (PC)
A system, containing a host and a limited number of peripherals
designed to be used in the home or in small offices, that enables
individuals to perform a variety of computing or word-processing
functions or both, and that typically is of a size permitting it
and its peripherals to be located on a table surface. Note: Other
definitions given in product standards or applicable regulations may
take precedence. Alternatively, a single-user microcomputer designed
for personally controllable applications.
PERSONAL IDENTIFICATION NUMBER (PIN)
A unique code number assigned, as with automatic teller machine
cards, to the authorized user.
POLARIZATION
That property of a radiated electromagnetic wave describing
the time-varying direction and amplitude of the electric field vector;
specifically, the figure traced as a function of time by the extremity
of the vector at a fixed location in space, as observed along the
direction of propagation. Note: In general, the figure is elliptical and
it is traced in a clockwise or counterclockwise sense. The commonly
referenced circular and linear polarizations are obtained when the
ellipse becomes a circle or a straight line, respectively. Clockwise
sense rotation of the electric vector is designated right-hand polarization
and counterclockwise sense rotation is designated left-hand polarization.
POLL
In data transmission, a flexible, systematic method,
centrally controlled for permitting stations on a multipoint circuit
to transmit without contending for the line. Also, a method for
presenting questions to users in order to obtain information for
analysis.
PROFILE
For an individual, a concise biographical sketch, a measure
of the extent to which one exhibits traits or abilities, or a measure
of one s likes and dislikes (perhaps based on historical data).
PROGRAM
A sequence of signals transmitted for entertainment or information.
RECEIVER
The apparatus employed to accept data from a communications
system.
REPEATER
A combination of apparatus for receiving either one-way
or two-way communication signals and delivering corresponding signals
which are either amplified, reshaped, or both. A repeater for one-way
communication signals is termed a "one-way repeater" and
one for two-way communication signals a "two-way repeater" .
SATELLITE
A manufactured object or vehicle intended to orbit the earth
and to engage in the reception and transmission of communication
signals.
SCRAMBLE
To disarrange the elements of a transmission in order
to make it unintelligible to interception.
SERVER
In a network, a device or computer system that is dedicated
to providing specific facilities to other devices attached to the
network. Contrast: Client.
SET-TOP BOX (STB)
A device that converts a cable television signal to an input
signal to the television set. In some cases, set-top boxes can
be used to access the World Wide Web.
SPLITTER
Splitters divide or combine power. The power division causes
an insertion loss and a small amount of internal loss that contributes
to the attenuation of the signals passing through the device. The
splitter has a common port and split port(s).
STILL (VIDEO)
A portion of motion video material consisting of a single
field or frame of video data.
SUBSCRIBER
One who uses a communication or signaling service. Equipment
is typically installed at a subscriber s premises to enable the
reception, and perhaps the transmission, of communication signals.
SWITCH
To establish communication channels among two or more
switch interfaces at customers demand.
SYNC PULSE
In television, signals employed for synchronizing scanning
that occur at rates related to the line and field frequencies. In
a television receiver, sync pulses are used to synchronize the deflection
generators.
TAP
In broadband networks, a passive device in the feeder system
that provides a connection between the drop cable and the feeder.
The tap is the principle means of access to the cable system by
the user. It removes a portion of the signal power from the distribution
line and delivers it to the drop line. The amount of power tapped off
the main line depends on the input power to the tap and the attenuation
value of the tap. Only the information signal (and not 60 Hz power)
goes to the outlet ports.
TELETEXT
A form of videotex that allows users to receive textual or
pictorial material via broadcast signals interpreted by a spatial
decoder attached to a television set. Contrast: Viewdata.
THEME
A subject or topic of artistic representation.
TRANSMISSION
The electrical transfer of a signal, message, or other form
of intelligence from one location to another.
TRANSMITTER
A device or circuit that generates high-frequency electric
energy, controlled or modulated, which can be radiated by an antenna.
UNIFORM RESOURCE LOCATOR (URL)
An address for a resource on the Internet. URLs are used by
Web browsers to locate Internet resources. A URL specifies the protocol
to be used in accessing the resource (such as http: for a World
Wide Web page or ftp: for an FTP site), the name of the server on
which the resource resides (such as //www.uspto.gov),
and, optionally, the path to a resource (such as an HTML document or
a file on that server).
VERTICAL BLANKING INTERVAL (VBI)
The time required for the electron beam in a raster-scan display
to perform a vertical retrace.
VIDEO-ON-DEMAND (VOD)
A programming event that is provided upon request, in which
the event is delivered "on-demand" (with negligible
delay). These events are delivered to individual subscribers through
an interactive process.
VIDEO SIGNAL
The signal sent from a source to a display. The signal can
include horizontal and vertical synchronization signals, as well
as image information.
VIDEOCASSETTE RECORDER (VCR)
A videotape recorder that uses videocassettes.
WIRELESS
Of, pertaining to, or characteristic of communications that
take place without the use of interconnecting wires or cables, such
as by radio, microwave, or infrared.
This subclass is indented under the class definition. Subject matter comprising means or steps for the processing
of information regarding a charge for or a payment of a distributed
or delivered video program or other services.
(1)
Note. Examples of the other services include payment for telephone
or for external data network service through a video distribution
system.
Data Processing: Financial, Business Practice,
Management, or Cost/Price Determination, for automated electrical financial or business practices,
and cost/price determination.
This subclass is indented under subclass 1. Subject matter comprising means or steps for recording
or storing use-related information at a receiver-side for subsequent
billing purposes.
(1)
Note. This subclass includes means or steps for electronically
retrieving locally stored data for further processing at a central
distribution point, such as a headend.
This subclass is indented under subclass 2. Subject matter comprising means or steps for mechanically
recording use-related information for subsequent billing purposes.
(1)
Note. This subclass includes systems which require the inspection
of, or interaction with, mechanical devices used for the recording
of use-related data for subsequent billing purposes.
This subclass is indented under subclass 1. Subject matter comprising means or steps for recording
or storing use-related information at an intermediate system location
for subsequent billing purposes.
This subclass is indented under subclass 1. Subject matter comprising means or steps for detailing
payment for a distributed or delivered video program or a service.
This subclass is indented under subclass 5. Subject matter comprising means or steps for payment using
a card reader device capable of performing transaction authorizations
for the purchase of video programming or other services.
This subclass is indented under subclass 1. Subject matter comprising means or steps for facilitating
nonstandard or variable pricing based on the nature of a distributed
or delivered video program or service.
(1)
Note. This subclass includes systems which provide a video
program at a cost which is inversely proportional to an amount of
inserted messages or commercials.
USE SURVEYING OR MONITORING (E.G., PROGRAM OR CHANNEL WATCHED):
This subclass is indented under the class definition. Subject matter comprising means or steps for observing
or tracking the activity of a user or a receiver function.
(1)
Note. This subclass includes metering, recording, or indicating
the activity of a user or the activity of a receiver with respect
to the activity of a user.
(2)
Note. This subclass includes subject matter directed to the
surveying or monitoring of the number of persons using a particular
receiver, as well as the number of receivers using a video program
or service, the length of time a video program or service is being
used, which of several programs or services is being used, or which
programs or services have been provided.
Communications: Electrical,
subclasses 825.06 through 825.18for monitoring or supervisory features in selective
signaling systems and subclasses 870.01-870.44 for continuously
variable indicating systems.
This subclass is indented under subclass 9. Subject matter comprising means or steps for sensing the
presence or movement of a user.
(1)
Note. For example, a device detects the presence or absence
of a user in a room or determines whether or not the user s eyes
are watching a television program, etc.
This subclass is indented under subclass 10. Subject matter comprising means or steps for monitoring
a user s presence by sensing the entry of an identification code.
(1)
Note. This subclass includes devices which accept the entry
of a personal identification number.
This subclass is indented under subclass 10. Subject matter comprising means or steps for sensing a
user by his or her effect on the environment near a receiver.
(1)
Note. This subclass includes devices which sense a user s
effect upon motion detection equipment, room temperature, and light
(as registered by a video camera).
This subclass is indented under subclass 9. Subject matter comprising means or steps for sensing,
tracking, metering, or recording user activity as a result of manual
action.
This subclass is indented under subclass 14. Subject matter comprising means or steps for performing
a surveying or monitoring function by detecting receiver local oscillator
operation or shifts in received signal waves as a result of reception.
This subclass is indented under subclass 14. Subject matter comprising means or steps for performing
a centrally controlled surveying or monitoring function by systematically
permitting each receiver in a multipoint distribution system to
transmit use-related data without contending with other receiver
transmissions.
This subclass is indented under subclass 14. Subject matter comprising means or steps for performing
a surveying or monitoring function by detecting timing information
peculiar to a particular video signal source.
(1)
Note. Different television stations have different relative
phases for synchronizing pulses which enable remote detection of
electromagnetic radiation from the receiver indicative of the station being
received.
This subclass is indented under subclass 14. Subject matter comprising means or steps for performing
a surveying or monitoring function by detecting the presence of
an audio signal associated with a distributed or delivered video program.
This subclass is indented under subclass 14. Subject matter comprising means or steps for performing
a surveying or monitoring function by detecting a particular sequence
or pattern of data.
This subclass is indented under subclass 14. Subject matter comprising means or steps for performing
a surveying or monitoring function by detecting data encoded within
a video signal format.
(1)
Note. This subclass includes systems which detect data encoded
in the vertical or horizontal blanking intervals or in any other
portions which are capable of transferring or transporting such
data.
This subclass is indented under subclass 14. Subject matter comprising means or steps for recording
images and sound associated with a surveying or monitoring function
on a cartridge mounted magnetic tape.
This subclass is indented under the class definition. Subject matter comprising means or steps for monitoring
the broadcast of video programming to confirm transmission or reception.
(1)
Note. Usually, the advertisement or program, or segment thereof,
is verified by a comparison to a stored sample which is made following
a detected trigger (located, for example, in the vertical blanking
interval).
This subclass is indented under the class definition. Subject matter comprising means or steps for conferring
tickets or form authorizing a purchase or for conferring a representation
of an amount or sum of a video program or other service which is
placed at user s disposal.
(1)
Note. Coupons are usually physically produced for future redemption.
Tokens and credits are typically electronic representations of quantities
of programs or services.
Data Processing: Financial, Business Practice,
Management, or Cost/Price Determination,
subclass 14 for business methods related to the distribution
or redemption of coupons.
This subclass is indented under the class definition. Subject matter comprising means or steps for presenting
questions to users in order to obtain information for analysis.
(1)
Note. This subclass includes systems which electronically
gather information as a precursor to or following the presentation
of a particular video program or service, as well as in the traditional sense,
to record opinions on political issues and the like.
Registers,
subclasses 51 through 56for voting machines, subclass 57 for registering
ballot boxes, and subclass 386 for voting machines controlled by data
bearing registers.
This subclass is indented under the class definition. Subject matter comprising means or steps for allowing
or preventing access to a video program or service, or otherwise
controlling access to a receiver device.
Telephonic Communications,
subclasses 143 through 155for telephone paystation check operated control
and subclasses 188-200 for call or terminal access alarm or control.
Telecommunications,
subclass 26.1 for use or access blocking of a modulated carrier
wave communication in general and subclass 411 for radiotelephones
with privacy or lockout.
This subclass is indented under subclass 25. Subject matter comprising means or steps for controlling
or restricting access using a physical mechanism.
This subclass is indented under subclass 25. Subject matter comprising means or steps for controlling
or restricting access to all programs or services transmitted within
a recognized band of frequencies.
This subclass is indented under subclass 25. Subject matter comprising means or steps for controlling
or restricting access to a particular programming event.
(1)
Note. This subclass includes subject matter directed toward
preventing the presentation of programming deemed inappropriate
for minors. The criteria for restricting access may be based on
a ratings system, such as the MPAA rating system, or on an extended
data service.
This subclass is indented under subclass 25. Subject matter comprising means or steps for controlling
or restricting access as a function of a particular period of time
or a duration of time.
(1)
Note. This subclass includes systems which limit receiver
access to minors based on the time of day or a viewing allowance.
This subclass is indented under subclass 25. Subject matter comprising means or steps for controlling
access by requiring the entry of an authorization code.
(1)
Note. This subclass includes systems in which entry of an
authorization code is done through a user interface.
This subclass is indented under subclass 25. Subject matter comprising means or steps for restricting
access to a video signal by electrically masking or modifying the
signal, so as to obliterate the signal s information, or otherwise by
making the signal unintelligible.
(1)
Note. This subclass is provided for nominal recitation of
video encryption or scrambling in a video distribution system. See
the Search Class note below for specific detail of video scrambling
technique.
(2)
Note. This subclass includes subject matter directed to preventing
unauthorized access to video signals at all points in a distribution
system.
PROGRAM, MESSAGE, OR COMMERCIAL INSERTION OR SUBSTITUTION:
This subclass is indented under the class definition. Subject matter comprising means or steps for inserting
or substituting a video program or other information beyond the
control of a viewer.
(1)
Note. The other information could include audio or text message.
Data Processing: Presentation Processing of Document,
Operator Interface Processing, and Screen Saver Display Processing, particularly
subclasses 716 through 726for operator interfaces for video sequencing or editing
This subclass is indented under subclass 32. Subject matter comprising means or steps for providing
a program or other information to a statistically relevant or regionally
appropriate group of viewers.
This subclass is indented under subclass 32. Subject matter comprising means or steps for the substitution
of local video programming or advertisements at regional distribution
points.
(1)
Note. This subclass includes subject matter directed to the
details of local commercial insertions in predefined program stream
breaks.
This subclass is indented under the class definition. Subject matter comprising means or steps for a user s interaction
with a receiver-side device to control the presentation of display
data.
(1)
Note. Such interaction facilitates the display of data associated
with distributed or delivered video programs or services.
Data Processing: Financial, Business Practice,
Management, or Cost/Price Determination,
subclasses 1 through 45for use of operator interface in electronic financial
or business management systems and particularly subclasses 26-29
for electronic shopping systems using an operator interface.
Data Processing: Presentation Processing of Document,
Operator Interface Processing, and Screen Saver Display Processing,
subclasses 716 through 726for on screen video interface features and functions
that are not particularly directed to interactive video distribution
systems, and subclasses 856-862 for cursor manipulation features.
This subclass is indented under subclass 37. Subject matter comprising means or steps for a user s
interaction with a display interface to facilitate video program
or channel selection.
This subclass is indented under subclass 38. Subject matter comprising means or steps for a user s
interaction with a program grid having intersecting row(s) and column(s)
of video program information.
(1)
Note. This subclass, and those subclasses under this subclass,
includes electronic program guide display interfaces which typically
provide a variety of information within the context of video program
information, such as channel, time, and content information. Such
interfaces often appear as electronic equivalents of traditional
printed program guides.
This subclass is indented under subclass 39. Subject matter comprising means or steps to display video
program information other than a program s name, channel number,
and time.
This subclass is indented under subclass 40. Subject matter comprising means or steps to display additional
information within a separate portion of a display interface.
This subclass is indented under subclass 39. Subject matter comprising means or steps for video program
information display arrangement and configuration.
(1)
Note. This subclass includes program guides which allow for
the display of video program information in alternative arrangements
or subsets in order to facilitate the dissemination of information
or the selection of programs.
This subclass is indented under subclass 44. Subject matter comprising means or steps describing particular
configurations based on genre, a theme, or a category.
(1)
Note. This subclass includes video program information presented
in such subsets as "sports", etc., as well as
such subsets as "college basketball" , etc.; that is,
subsets of information or any logical division of information.
This subclass is indented under subclass 44. Subject matter comprising means or steps for a particular
configuration based on one s likes and dislikes, as defined by historical
viewing data.
(1)
Note. This subclass includes video program information presented
in subsets defined by the profile of an individual, as opposed to
subsets defined exclusively by the attributes of video program information.
This subclass is indented under subclass 44. Subject matter comprising means or steps user configuration
of video program information.
(1)
Note. This subclass is directed to subject matter describing
user-friendly systems which enable users to arrange, add, or subtract
display content to provide personalized display interfaces.
This subclass is indented under subclass 39. Subject matter comprising means or steps for integrating
or displaying video program guide data from plural sources of such
data.
(1)
Note. This subclass includes systems which combine video program
guide data at a server or headend, where such data is, for example,
provided through diverse transmission networks.
This subclass is indented under subclass 48. Subject matter comprising means or steps for integrating
and displaying data at a receiver.
(1)
Note. This subclass includes systems which combine video program
guide data at a receiver, where such data is, for example, provided
through diverse transmission networks.
This subclass is indented under subclass 39. Subject matter comprising means or steps procedure by
which video program guide data is refreshed or made current.
(1)
Note. This subclass includes systems which periodically transmit
blocks of data covering successive time frames to provide up-to-date
data for interaction therewith by users.
This subclass is indented under subclass 39. Subject matter comprising means or steps for a functional
pointer which directs a user to an alternative data source which
is external to the distribution network.
(1)
Note. This subclass includes subject matter directed to the
incorporation of a URL, an address for a resource on the Internet,
into a video program guide to provide a link to further information
not provided by the guide.
This subclass is indented under subclass 39. Subject matter comprising means or steps for appearance
or function of features which enable a user to browse the information
provided by a video program guide.
(1)
Note. This subclass includes such navigational features as
cursor control, scrolling, links to further pages of information,
etc.
This subclass is indented under subclass 39. Subject matter comprising means or steps for a comparative
process by which specific video program guide data may be accessed.
(1)
Note. This subclass includes systems which incorporate letter
or keyword search capability and the like.
This subclass is indented under subclass 39. Subject matter comprising means or steps for particular
form or mechanism of transmission of video program guide data which
is provided to receivers.
(1)
Note. This subclass is directed to such transmission features
as data formats, whether data is transmitted in-band or out-of-band,
whether data is transmitted as blocks of data, encoded, encrypted, etc.
Electrical Computers and Digital Processing Systems:
Multiple Computer or Process Coordinating, appropriate subclassesfor multiple computer data transferring.
This subclass is indented under subclass 38. Subject matter comprising means or steps for a user s
interaction with a display interface having video channel information.
(1)
Note. This subclass includes channel guide display interfaces
which facilitate channel selection, and which differ from electronic
program guide display interfaces in that they lack program-specific information.
This subclass is indented under subclass 38. Subject matter comprising means or steps for a user s
interaction with a video display interface which is configured to
allow channel selection by the entry or selection of an alphanumeric character
set.
(1)
Note. This subclass includes systems which allow network or
program provider selection by the entry or selection of a call sign,
and thus without the knowledge of particular channel numbers.
This subclass is indented under subclass 38. Subject matter comprising means or steps for a user s
interaction with a display interface to arrange for the recording
of future video programs or to arrange for a reminder of the airing of
future video programs.
(1)
Note. This subclass includes systems which facilitate the
unattended recording of plural video programs.
This subclass is indented under subclass 38. Subject matter comprising means or steps for providing
information to a display interface from sources of video information
connected through one or more transmission networks.
(1)
Note. This subclass includes program guide data or other display
interface data which has been gathered from plural sources and combined
at a headend for transmission to receiver devices. This subclass
also includes systems which combine program guide data or other display
interface data at receiver devices following transmission of such
data through diverse networks, such as cable and satellite transmission
networks.
This subclass is indented under subclass 37. Subject matter comprising means or steps for a user s
interaction with a video display interface to arrange for the selection
of a product.
(1)
Note. This subclass includes interactive video distribution
systems which further provide product information via a display
interface, typically through a hierarchical menu structure.
Data Processing: Financial, Business Practice,
Management, or Cost/Price Determination,
subclass 26 and 27 for electronic shopping systems using an operator
interface.
This subclass is indented under subclass 37. Subject matter comprising means or steps for a user s
interaction with a display interface to arrange for the selection
of a video program.
(1)
Note. This subclass includes systems which allow for the selection
of video programs, such as pay-per-view or video-on-demand programs,
through a series of nested menus.
This subclass is indented under the class definition. Subject matter comprising means or steps for the distribution
or delivery of video programs through a system of limited-range transmitters
serving individual sections of a geographical area, such that any
available radio frequency channel can be used in different parts
of the area simultaneously.
Multiplex Communications,
subclass 312 for message broadcasting over free space and subclasses
328-350 for cellular communications using multiplexing techniques.
Telecommunications, particularly
subclasses 3.01 through 3.06for general radio frequency signal distribution
details and subclasses 403-466 for radio telephone systems.
This subclass is indented under the class definition. Subject matter comprising means or steps for the distribution
or delivery of video programs through vehicles which orbit the earth
and engage in the reception and transmission of communication signals.
Telecommunications, particularly
subclass 3.02 for general radio frequency signal satellite broadcast receivers
and subclasses 12.1-13.4 for general radio frequency signal space satellite
repeaters.
This subclass is indented under subclass 63. Subject matter comprising means or steps for both the
upstream and downstream transmission of communication signals.
This subclass is indented under subclass 65. Subject matter comprising means or steps for upstream
communications via a terrestrial transmission network.
This subclass is indented under subclass 63. Subject matter comprising means or steps for details of
the upstream, land-based source of communication signals in the
satellite video distribution system.
This subclass is indented under subclass 63. Subject matter comprising means or steps for details of
the downstream, land-based termination for communication signals
in the satellite video distribution system.
This subclass is indented under subclass 68. Subject matter comprising means or steps for a particular
time-varying direction and amplitude of an electric field vector,
specifically the elliptical figure traced, in a clockwise or counterclockwise
sense, as a function of time by the extremity of the vector at a
fixed location in space, as observed along the direction of propagation.
(1)
Note. This subclass includes systems having circular, straight
line, right-hand, left-hand, vertical, or horizontal polarization.
This subclass is indented under subclass 68. Subject matter comprising means or steps for downstream
reception of signals from a satellite and the subsequent retransmission
of those signals to plural receiver devices.
This subclass is indented under subclass 68. Subject matter comprising means or steps for the setup
and operation of receiver antennas with respect to initialization,
in which an antenna is configured for operation; calibration, in
which an antenna s focus is finely tuned; and aiming, in which an
antenna is focused or refocused.
(1)
Note. This subclass includes systems which employ a display
interface to facilitate the initial configuration of newly acquired
antennas, as well as systems having antennas which require constant
refocusing, such as airborne antennas on airplanes.
This subclass is indented under the class definition. Subject matter comprising means or steps for the distribution
or delivery of video programs, in which communication signals are transmitted
in that portion of the radio frequency spectrum between 1 GHz and
30 GHz.
(1)
Note. This subclass includes systems which provide a so-called
Multichannel Multipoint Distribution Service (MMDS).
This subclass is indented under the class definition. Subject matter comprising means or steps for the distribution
or delivery of video programs, through a short distance network
or subnetwork.
(1)
Note. For example, local area video distribution network in
a dwelling or a campus.
This subclass is indented under subclass 74. Subject matter comprising means or steps for distribution
or delivery through a local network or subnetwork confined to a
single vehicle or closely related group of vehicles (e.g., in a parking
or a camp ground).
(1)
Note. This subclass includes systems which distribute or deliver
video through automobiles.
This subclass is indented under subclass 76. Subject matter comprising means or steps for passenger
receiver terminals located on the backs of airplane seats.
This subclass is indented under subclass 74. Subject matter comprising means or steps for distribution
or delivery through a local network or subnetwork confined to a
single building or closely related group of buildings.
This subclass is indented under subclass 78. Subject matter comprising means or steps for distribution
or delivery via the existing power network of a structure.
This subclass is indented under subclass 78. Subject matter comprising means or steps for controlling
the communication with, or communication between, diverse elements
within the structure.
(1)
Note. This subclass includes systems which, in addition to
distributing or delivering video programs, also coordinate communications
between such diverse elements as telephones, videocassette recorders,
stereo components, lighting and alarm systems, kitchen appliances,
etc.
This subclass is indented under subclass 78. Subject matter comprising means or steps for communications
within the distribution system that take place without the use of
interconnecting wires or cables (e.g., radio, microwave, or infrared
communications).
This subclass is indented under subclass 78. Subject matter comprising means or steps for a local,
dedicated computer system or central system that distributes or
delivers video programs.
(1)
Note. This subclass includes systems having servers or headends
which communicate through a separate network(s) with another server(s),
headend, information provider(s), telephone exchange, etc.
This subclass is indented under subclass 78. Subject matter comprising means or steps for additional
services for customers of lodging establishments provided through
or initiated by way of a video distribution system.
This subclass is indented under subclass 83. Subject matter comprising means or steps for addition
of an integrated call bell system for signaling hospital staff.
This subclass is indented under subclass 78. Subject matter comprising means or steps for a terminating
device in the system which connects a subscriber to a source of
video programs.
(1)
Note. Such device enables the reception, and perhaps the transmission,
of communication signals.
This subclass is indented under the class definition. Subject matter comprising means or steps for the unidirectional
distribution or delivery of video programs at the request of a user.
(1)
Note. Programming events are provided following an exchange
in which a user interacts with a server or headend.
(2)
Note. This subclass includes systems in which system operators
interface with transmitter-side elements, and users interface with
receiver-side elements, in order to facilitate, through interaction with
such elements, the dynamic control of data processing or data flow
at various points in the systems.
Electrical Computers and Digital Processing Systems:
Multiple Computer or Process Coordinating, particularly
subclasses 217 through 219for systems which provide remote data access using
interconnected networks or by providing access to remote server.
This subclass is indented under subclass 86. Subject matter comprising means or steps for providing
individual programming events "on-demand", or
with negligible delay to at least one user.
(1)
Note. This subclass includes systems which deliver programming
upon request, as opposed to those which broadcast one or more programs
and make possible the reception of such programs upon request.
This subclass is indented under subclass 87. Subject matter comprising means or steps for control of
programming events in the manner in which one typically controls
the operation of a VCR, using control commands such as "pause", "fast-forward", "reverse",
etc.
(1)
Note. This subclass includes systems which deliver programming
consistent with a VCR-like control command following the transmission
of the command to a server or headend.
This subclass is indented under subclass 88. Subject matter comprising means or steps for local execution
of VCR-like commands through the use of a receiver memory.
(1)
Note. Typically, a first-in, first-out buffer memory is used
to buffer incoming programming events in a manner which is sufficient
to accommodate changes in the displayed data stream brought about by
the control commands.
This subclass is indented under subclass 88. Subject matter comprising means or steps for a conspicuous
technique for transmitting the video programming data to accommodate VCR-like
functionality.
(1)
Note. One technique in digital transmission systems, when
simulating "fast-forward" or "reverse" functions,
is to transmit only MPEG-encoded I-frame data.
This subclass is indented under subclass 91. Subject matter comprising means or steps for transfer
of data to or retrieval of data from mass storage located at a server
or headend.
(1)
Note. This subclass includes systems which strip data retrieved
from mass storage onto an array of disk storage devices to facilitate
subsequent on-demand data retrieval, buffering, switching, and transmission.
for details of the buffering and switching of data,
following the retrieval of data from mass storage, in servers or headends
used in user-requested video program systems.
This subclass is indented under subclass 91. Subject matter comprising means or steps for control of
server or headend system operations, particularly data processing
and data flow.
This subclass is indented under subclass 93. Subject matter comprising means or steps for buffering
and switching of data in a server or headend to facilitate transmission
over a network.
(1)
Note. This subclass includes systems which use first-in, first-out
buffers and ATM switches to facilitate transmission over a network.
Electrical Computers and Digital Processing Systems:
Multiple Computer or Process Coordinating, appropriate subclasses for buffering and switching in
multiple computer data transferring.
This subclass is indented under subclass 95. Subject matter comprising means or steps for channel or
bandwidth allocation based on server or network loads.
(1)
Note. This subclass includes subject matter directed to overcoming
congestion within servers due to demands on data access, etc., as
well as congestion within networks due to bandwidth constraints.
This subclass is indented under subclass 93. Subject matter comprising means or steps for assignment
or designation of data retrieval and data trasnsmission as it relates
to one or more users or one or more programming events.
(1)
Note. This subclass includes techniques for grouping events
or users together, as well as nonstandard techniques for data retrieval
and transmission.
This subclass is indented under subclass 87. Subject matter comprising means or steps for arrangement,
composition, or use of the components or nodes and interconnecting
branches which facilitate communications between the server or headend
and receivers.
This subclass is indented under subclass 87. Subject matter comprising means or steps for a terminating
device in the system which connects a subscriber to a source of
video programs.
(1)
Note. Such device enables the transmission and reception of
communication signals.
This subclass is indented under subclass 86. Subject matter comprising means or steps for providing
a programming event upon request, in which the event is broadcast
on plural channels in time-staggered intervals.
(1)
Note. This subclass includes systems which distribute programming
to all subscribers, but enable the reception of a given event channel
on an individual basis through an interactive process. Due to the
mode of distribution, requests can be processed "near on-demand", with
a delay which is inversely proportional to the broadcast interval.
This subclass is indented under subclass 101. Subject matter comprising means or steps for control of
programming events in the manner in which one typically controls
the operation of a VCR, using control commands such as "pause", "fast-forward", "reverse",
etc.
(1)
Note. This subclass includes systems which execute some VCR-like
functions by switching channels and thus providing access to alternative
time frames of the same event.
This subclass is indented under subclass 86. Subject matter comprising means or steps for providing
a programming event upon request, in which the event is broadcast
on a particular channel at a particular time.
(1)
Note. This subclass includes systems which distribute programming
to all subscribers, but enable the reception of a given event on
an individual basis through an interactive process.
VIDEO DISTRIBUTION SYSTEM WITH UPSTREAM COMMUNICATION:
This subclass is indented under the class definition. Subject matter comprising means or steps for the unidirectional
distribution of video programs with either the upstream or bidirectional
transmission of further diverse data communications or services
in a network.
(1)
Note. This subclass includes systems in which system operators
interface with transmitter-side elements, and users interface with
receiver-side elements, in order to facilitate, through interaction with
such elements, the dynamic control of data processing or data flow
at various points in the systems.
This subclass is indented under subclass 105. Subject matter comprising means or steps for bidirectional
communication of audio signals in a normally duplex arrangement
through a television distribution network.
This subclass is indented under subclass 105. Subject matter comprising means or steps for centralized
testing functions associated with the performance of a cable system.
This subclass is indented under subclass 105. Subject matter comprising means or steps for an alarm
system which uses a video distribution system for data communications.
This subclass is indented under subclass 105. Subject matter comprising means or steps for a connection
to a network external to the video distribution network, which connection
allows communication and data exchange with the external network.
This subclass is indented under subclass 109. Subject matter comprising means or steps for a high bandwidth
modem operating across a cable television network.
(1)
Note. This subclass includes receivers having modems in communication
with the Internet.
This subclass is indented under subclass 109. Subject matter comprising means or steps for transmission
of a functional pointer which directs a user to an alternative data
source which is external to the distribution network.
(1)
Note. This subclass includes subject matter directed to the
transmission of a URL, an address for a resource on the Internet.
This subclass is indented under subclass 112. Subject matter comprising means or steps for link transmission
within a video image.
(1)
Note. This subclass includes subject matter directed to the
transmission of a URL, an address for a resource on the Internet,
which is integrated into a video image, and which functions as an
active link.
This subclass is indented under subclass 105. Subject matter comprising means or steps for a central
system that distributes video programs. The central system is the
logical root of the distribution and delivery system.
(1)
Note. This subclass includes subject matter directed to servers
or headends in broadband coaxial cable systems having two-way communications.
This subclass is indented under subclass 114. Subject matter comprising means or steps for the transfer
of data to storage or the retrieval of data from storage located
at a server or headend.
This subclass is indented under subclass 114. Subject matter comprising means or steps for the control
of server or headend system operations, particularly data processing
and data flow.
This subclass is indented under subclass 114. Subject matter comprising means or steps for a connection
at the server or headend which interfaces communications between
the server or headend and the transmission network.
This subclass is indented under subclass 105. Subject matter comprising means or steps for arrangement,
composition, or use of the components or nodes and interconnecting
branches which facilitate communications between the server or headend
and receivers.
This subclass is indented under subclass 118. Subject matter comprising means or steps for a device,
intermediate to a server or headend and receiver devices, which
is in communication with and which provides services to either the headend
or server or the receiver devices.
(1)
Note. This subclass is directed to intermediate network units
which provide significant data processing, and thus differ from
less significant passive or active network components which merely
split or combine signal power or amplify or filter signals.
(2)
Note. This subclass includes subject matter directed to wireless
local loop systems in which there are significant video features.
This subclass is indented under subclass 119. Subject matter comprising means or steps for two-way communications
within the transmission network occurring solely between the intermediate
network unit and a receiver(s).
(1)
Note. This subclass includes systems having tuning functions
provided outside the home or tuning or program selection functions
for plural receivers consolidated in a single, external device.
This subclass is indented under subclass 121. Subject matter comprising means or steps for upstream
communications via a public switched telephone network.
This subclass is indented under subclass 121. Subject matter comprising means or steps for upstream
communications without the use of interconnecting wires or cables.
(1)
Note. This subclass includes communication via radio, microwave,
or infrared.
This subclass is indented under subclass 121. Subject matter comprising means or steps for unwanted
signals in the useful frequency bands of the communications system.
(1)
Note. This subclass includes subject matter related to noise
produced by other communications services.
This subclass is indented under subclass 124. Subject matter comprising means or steps for the entry
of unwanted signals in transmission network in frequencies which
would otherwise remain free of signal energy.
(1)
Note. This subclass includes subject matter directed to the
noise problems associated with making useful previously unused frequency
bands for upstream communications.
This subclass is indented under subclass 118. Subject matter comprising means or steps for explicit
uses for the frequency spectrum covered by a given transmission
network.
(1)
Note. This subclass includes subject matter detailing frequency
bands for downstream and upstream communications, as well as bands
for other services, such as telephony.
This subclass is indented under subclass 118. Subject matter comprising means or steps for a transmission
network having connecting branches which are a hybrid of both optical fiber
cable and coaxial cable.
(1)
Note. This subclass includes broadband cable systems which
use optical fiber cable from the headend (as, for example, trunk
cables), and use coaxial cable thereafter (as, for example, branch cables).
This subclass is indented under subclass 118. Subject matter comprising means or steps for providing
an electric power signal over the transmission network to energize
downstream elements.
This subclass is indented under subclass 105. Subject matter comprising a terminating device which connects
a subscriber to a source of video programs.
(1)
Note. Such device enables the transmission and reception of
communication signals.
This subclass is indented under subclass 131. Subject matter comprising means or steps for hardware
or software enhancements to receiver devices.
(1)
Note. This subclass includes subject matter directed to extending
the usefulness of receivers or expanding their functionality through
updates or modifications.
This subclass is indented under subclass 131. Subject matter comprising means or steps for receiver
devices in combination with (or in communication with) diverse art
devices.
(1)
Note. This subclass includes systems having receivers in communication
with personal computers, game players, VCRs, etc., for the transmission
of data or control signals in either direction. For example, a receiver
might function to control a VCR to initiate the predetermined recording
of a program.
This subclass is indented under subclass 131. Subject matter comprising means or steps for receiver
devices having specific data storage characteristics.
(1)
Note. This subclass has subject matter directed to particular
types of storage, such as mass storage and cache memory; particular
features of storage, such as directories and tables; or particular
storage processes, such as memory access.
This subclass is indented under the class definition. Subject matter comprising means or steps for the unidirectional
distribution of video programs through a network, in which there
is local interaction with a receiver, or with a data stream through
a receiver.
(1)
Note. This subclass includes systems in which system operators
interface with transmitter-side elements, and users interface with
receiver-side elements, in order to facilitate, through interaction with
such elements, the dynamic control of data processing or data flow
at various points in the systems.
(2)
Note. Systems under this subclass include those which cyclically
and repeatedly transmit data streams of relevant video data and
other service data as small units or blocks. At the receiver-side,
users interact with these data streams in a manner indicative of
two-way interactive systems. However, given that there are no upstream
communications from the receiver-side, these systems are often referred
to as "simulated" two-way or bidirectional communications
systems.
This subclass is indented under subclass 135. Subject matter comprising means or steps for interactive
data or applications which are transmitted within the range of frequencies
used for the transmission of a video signal.
(1)
Note. This subclass includes systems which transmit data within
the video signal band but otherwise separate from video signals
themselves, as well as systems which encode data within any useful
portion of video signals.
This subclass is indented under subclass 136. Subject matter comprising means or steps for coding, extracting,
processing, and displaying coded character information.
(1)
Note. This subclass includes systems which receive and display
either textual or pictorial material coded and distributed with
video data. The material is often distributed as "pages" of
data which may be indexed or accessible in a hierarchical manner
through user interaction.
This subclass is indented under subclass 135. Subject matter comprising a terminating device which connects
a subscriber to a source of video programs.
(1)
Note. The device enables the reception of communication signals.
This subclass is indented under subclass 139. Subject matter comprising means or steps for hardware
or software enhancements to receiver devices.
(1)
Note. This subclass includes subject matter directed to extending
the usefulness of receivers or expanding their functionality through
updates or modifications.
This subclass is indented under subclass 139. Subject matter comprising means or steps for receiver
devices in combination with (or in communication with) diverse art
devices.
(1)
Note. This subclass includes systems having receivers in communication
with personal computers, game players, VCRs, etc., for the transmission
of data or control signals in either direction. For example, a receiver
might function to control a VCR to initiate the predetermined recording
of a program.
This subclass is indented under subclass 139. Subject matter comprising means or steps for receiver
devices having specific data storage characteristics.
(1)
Note. This subclass has subject matter directed to particular
types of storage, such as mass storage and cache memory; particular
features of storage, such as directories and tables; or particular
storage processes, such as memory access.
This subclass is indented under the class definition. Subject matter comprising means or steps for the unidirectional
distribution of video programs, through a network.
(1)
Note. This subclass includes systems in which system operators
interface with transmitter-side elements in order to facilitate,
through interaction with such elements, the dynamic control of data processing
or data flow at various points in the systems.
for details of headends used in one-way distribution
systems in which there is local interaction with a receiver or with
a data stream through a receiver.
This subclass is indented under subclass 144. Subject matter comprising means or steps for the transfer
of data to storage or the retrieval of data from storage located
at a headend.
This subclass is indented under subclass 144. Subject matter comprising means or steps for the control
of headend system operations, particularly data processing and data
flow.
This subclass is indented under subclass 144. Subject matter comprising means or steps for a connection
at the headend which interfaces communications between the headend
and the transmission network.
This subclass is indented under subclass 143. Subject matter comprising means or steps for arrangement,
composition, or use of the components or nodes and interconnecting
branches which facilitate communications between the headend and
receivers.
Multiplex Communications,
subclasses 315 through 327for repeaters in multiplex communication over free
space; and subclasses 492, 501, and 502 for repeaters in frequency division
and time division multiplex, respectively.
This subclass is indented under subclass 148. Subject matter comprising means or steps for providing
an electric power signal over the transmission network to energize
downstream elements.
This subclass is indented under subclass 143. Subject matter comprising means or steps for a terminating
device in the system which connects a subscriber to a source of
video programs.
(1)
Note. The device enables the reception of communication signals.
through 142, for details of receivers used in one-way distribution
systems in which there is local interaction with the receiver or
with a data stream through the receiver.
This subclass is indented under subclass 151. Subject matter comprising means or steps for hardware
or software enhancements to receiver devices.
(1)
Note. This subclass includes subject matter directed to extending
the usefulness of receivers or expanding their functionality through
updates or modifications.
for programmable or upgradeable receiver features
found in one-way distribution systems in which there is local interaction
with the receiver or with a data stream through the receiver.
This subclass is indented under subclass 151. Subject matter comprising means or steps for receiver
devices in combination with (or in communication with) diverse art
devices.
(1)
Note. This subclass includes systems having receivers in communication
with personal computers, game players, VCRs, etc., for the transmission
of data or control signals in either direction. For example, a
receiver might function to control a VCR to initiate the predetermined
recording of a program.
for receivers in communication with diverse devices
found in one-way distribution systems in which there is local interaction
with the receiver or with a data stream through the receiver.
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