1
Edward A Krause, Woo H Paik, Vincent Liu, Jim Essserman: Adaptive motion compensation for digital television. General Instrument Corporation, Barry R Lipsitz, November 26, 1991: US05068724 (186 worldwide citation)

A method and apparatus are provided for processing digital video signals for transmission in a compressed form. A set of pixel data is compressed without motion compensation to provide a first compressed video signal. The pixel data is compressed using motion compensation to provide a second compres ...


2
Woo H Paik, Edward A Krause, Vincent Liu, Paul Shen, Henry Derovanessian: Statistical multiplexer for a multichannel image compression system. General Instrument Corporation, Barry R Lipsitz, June 1, 1993: US05216503 (178 worldwide citation)

A multichannel image compression system uses a plurality of encoders to compress image data. A coding level command is provided to each of the encoders to specify a level of quality to be provided by each encoder. Encoded image data, provided by the encoders in response to the coding level command, ...


3
Xuemin Chen, Vincent Liu: Scene change detector for digital video. General Instrument Corporation, Barry R Lipsitz, Ralph F Hoppin, May 12, 1998: US05751378 (134 worldwide citation)

In a method for detecting a scene change between a prior video picture and a current video picture of a sequence of pictures, an average luminance value is determined for a block pair of the prior and current video pictures. Preferably, the blocks of the block pair are located, respectively, in the ...


4
Edward A Krause, Adam Tom, Vincent Liu: Method and apparatus for vector coding of video transform coefficients. General Instrument Corporation, Barry R Lipsitz, March 15, 1994: US05295203 (118 worldwide citation)

A vector coding scheme for video transform coefficients is provided. A vector is generated to identify a group of coefficients from a block of transform coefficients that qualify for transmission according to predetermined criteria. In an illustrated embodiment, only coefficients having nonzero ampl ...


5
Edward A Krause, Woo H Paik, Vincent Liu, James N Esserman: Motion compensation for interlaced digital television signals. General Instrument Corporation, Barry R Lipsitz, March 3, 1992: US05093720 (111 worldwide citation)

Motion compensated coding of interlaced digital video signals is provided. Pixel data from successive interlaced video fields is compared to similarly situated pixel data in a plurality of previous fields to find a preferred counterpart for each current field set of pixel data. A prediction error si ...


6
Xuemin Chen, Vincent Liu: Optimal disparity estimation for stereoscopic video coding. General Instrument Corporation of Delaware, Barry R Lipsitz, Ralph F Hoppin, July 29, 1997: US05652616 (60 worldwide citation)

Disparity estimation between the right and left view pixel luminance values in a stereoscopic video signal is optimized by determining the minimum least-square-error between macroblocks of the right and left view pictures. Affine transform coefficients and disparity vectors which correspond to the m ...


7
Michael Blumenfeld, Vincent Liu, Bernd Mielke, Marcus Michel: Method for extracting hydrogen from a gas that contains methane, especially natural gas, and system for carrying out said method. Uhde, Collard & Roe P C, March 23, 2010: US07682597 (56 worldwide citation)

The invention relates to a method for extracting hydrogen from a gas containing methane, especially natural gas. Hydrocarbons contained in the gas are catalytically broken down in a reformer (4) by steam in order to form hydrogen, carbon monoxide and carbon dioxide. Catalytic conversion of the obtai ...


8
Siu Wai Wu, Vincent Liu: First pass encoding of I and P-frame complexity for compressed digital video. General Instrument Corporation, Barry R Lipsitz, Douglas M McAllister, October 12, 2004: US06804301 (54 worldwide citation)

The invention relates to an improved system and method for encoding digital images within frames for digital television transmission. Every anchor frame in a first pass encoder is encoded as a P-frame. Groups of macroblocks, such as slices in the P-frame, are alternately encoded as I-slices and P-sl ...


9
Woo H Paik, Vincent Liu, Paul Shen, Edward A Krause: Digital HDTV data packet format and receiver therefor. General Instrument Corporation, Barry R Lipsitz, August 31, 1993: US05241382 (51 worldwide citation)

A macroblock packet format is provided for use in a digital HDTV system wherein successive video frames are divided into a plurality of macroblocks. The macroblocks comprise a plurality of superblocks, each containing a plurality of luminance and chrominance video data blocks. A DLEN field is provid ...


10
Vincent Liu, Siu Wai Wu, Michael Casteloes, Robert J Stone, Rebecca Lam: Method and apparatus for determining a transmission bit rate in a statistical multiplexer. General Instrument Corporation, Larry T Cullen, August 26, 2008: US07418007 (41 worldwide citation)

A statistical multiplexer for coding and multiplexing multiple channels of digital television data, or multiple panels of HDTV digital television data. A bit rate need parameter is determined for each encoder in a stat mux group, and an encoding bit rate is allocated to each channel based on its nee ...