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7170546 |
Television system distributing a dynamically varying number of concurrent video presentations over a single television channel
A system for providing, in a television system, the combination, transmission, and reception of multiple video presentations over a single channel of a television distribution system. Presentations...
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6369861 |
Program selection system for a digital television receiver
A program selection system for a consumer digital television receiver includes a numeric keypad and scrolling keys for selecting a channel through which a multi-program bit-stream is received. The...
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6226043 |
Video signal transmission method and video signal transmitting apparatus without transmitting of multiplex timing signal
A video signal transmitting apparatus is arranged by a multiplexing unit for multiplexing digital R (red), R (green), B (blue) video signals in a time divisional manner; and for inserting a...
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6044396 |
Method and apparatus for utilizing the available bit rate in a constrained variable bit rate channel
A system for utilizing the available bit rate in a constrained variable bit rate channel is described. The system receives one or more encoded information streams, each having a variable bit rate....
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5905543 |
Color video system with illuminant-independent properties
The signals received by the three cameras of any color video system are determined by the reflectance properties of the objects in the scene and the spectral distribution function of the...
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5687095 |
Video transmission rate matching for multimedia communication systems
Digital video transmission rate matching techniques are disclosed. A bit stream rate matching apparatus includes a bit rate increasing device and a bit rate reducing device. The bit rate increasing...
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5629736 |
Coded domain picture composition for multimedia communications systems
Video composition techniques are disclosed for processing video information from a plurality of sources to provide a video image having a plurality of rectangular regions. Each rectangular region...
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5621463 |
Easily expandable transport stream encoder
A transport stream encoder is disclosed which comprises a plurality of FIFO buffers coupled to sources of component signals. Each of the FIFO buffers has a data output terminal for producing...
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5550590 |
Bit rate controller for multiplexer of encoded video
In the present invention, by performing a control so that the I-coding modes of the encoders of a plurality of respective channels do not overlap each other, the amount of generated encoded...
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5550589 |
Method of adaptively multiplexing a plurality of video channel data using channel data assignment information obtained from a look-up table
A method of adaptively multiplexing a plurality of video channel data is disclosed. A multiplexed data includes a plurality of frames each of which contains a plurality of sub-frames. The video...
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5543842 |
Apparatus and method for providing multiple video data streams from a single source
A method is provided for generating a composite video data stream. A first data stream composed of a sequence of frames of video data each having an x-dimension of a preselected number of pixels...
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5526050 |
Methods and apparatus for concurrently acquiring video data from multiple video data sources
The invention provides apparatus and methods for concurrently acquiring video data from multiple video data sources. The invention comprises an asynchronous interface that collects pixel data from...
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5500676 |
Method of encoding and multiplexing picture signals and apparatus utilizing the same
A picture signal encoding multiplexing method and apparatus in which encoded data of a plurality of picture signals, which are respectively output from a plurality of picture signal encoding...
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5463701 |
System and method for pattern-matching with error control for image and video compression
Disclosed is a system and a method for compressing digitized color video data by generating codes into a pattern of tables for regions in frames of the video data exhibiting certain patterns. An...
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5361096 |
Method and apparatus for multiplex transmission of video signals in a plurality of channels with refresh control utilizing intraframe coding
Time-varying picture signals of a plurality of channels are predictively coded by utilizing the interframe correlation and multiplexed at the transmitting side. The signals are separated for each...
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5327236 |
Video switcher apparatus for wide screen EDTV signals
A compatible special effect signal can be produced without using an encoder or a special signal processor. Each of EDTV signals is divided into a main screen signal and a compensation screen...
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5319457 |
Variable length image coding system
A variable length image coding system for multiplexing multi channel parallel data at a specified speed after making variable length coding, and capable of suppressing the variation of amount of...
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5055915 |
Method and apparatus for the transmission and reception of two conventional television signals using a two-line MAC format
A system is described for transmitting two conventional television signals (for example NTSC style 525 line, 2:1 interlaced signals) over a two line MAC (multiple analog component) signal. Both an...
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4967272 |
Bandwidth reduction and multiplexing of multiple component TV signals
In a system for transmitting analog video signals, the luminance and chrominance components are each subjected to different bandwidth reduction processes. In addition, the high and low frequency...
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4910585 |
Frequency selective video signal intraframe processor
A widescreen television signal containing center panel information and time compressed side panel information in an overscan region is intraframe processed above a given frequency only with respect...
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4646149 |
Alternate field luminance enhancement in a spectrum conserving television system
An improved television bandwidth compression system allows two television programs to simultaneously utilize the bandwidth normally allowed for one television program. The basic bandwidth...
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4553165 |
Transform processing method for reducing noise in an image
An improved image processing method reduces noise in a sampled image while minimizing unintended distortion of image features. Image signals are generated representative of the light value of...
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4264919 |
Cancelling cross modulation in two color TV signals passed through non-linear path
When two color television signals are transmitted over a common non-linear path, such as a transponder in a communications satellite, the two color subcarriers at slightly different frequencies...
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4179703 |
System for transmitting two color TV signals
In a system in which alternate lines of one color television video signal normally are delayed half the period of the color subcarrier at a transmitting terminal to minimize the cross modulation of...
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4120001 |
System for passing two color TV signals through non-linear path
When two color television signals are transmitted over a common non-linear path, such as a transponder in a communications satellite, the two color subcarriers at slightly different frequencies...
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3953666 |
Television system for simultaneously transmitting and receiving a plurality of independent pictures on a single carrier screen
Apparatus for transmitting and receiving a plurality of separate pictures or scenes on a single television carrier signal such that a different picture appears in each quadrant of a television...
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3857999 |
CONVERTER FOR A LINE SHARED EDUCATIONAL TV SYSTEM
An educational TV system features a converter for existing domestic TV receivers to enable reception and display of a multiplicity of pictures transmitted over a single TV channel using a line...
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3849594 |
MULTI-PICTURE TV SYSTEM WITH AUDIO AND DODING CHANNELS
A TV broadcast system features the transmission of a plurality of separate pictures and a plurality of audio signals on a single television carrier signal such that two different pictures may be...
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3725571 |
MULTIPLEX VIDEO TRANSMISSION SYSTEM
System of receiving a plurality of n-separate pictures wherein every nth line of each of the pictures is selected for transmission beginning at a different line and wherein reception of the...
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3059050 |
Bandwidth reduction system
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