21
Hamid Gharavi: Efficient coding scheme for multilevel video transmission. Bell Communications Research, Leonard Charles Suchyta, Stephen M Gurey, October 12, 1993: US05253058 (137 worldwide citation)

A highly efficient video coding scheme is disclosed which codes, for transmission, the pel values of a scanned high quality HDTV video signal in such a manner that a low-quality version of the signal as well as a high-quality version are available to different video subscribers. The coder includes a ...


22
Barin Geoffry Haskell, Atul Puri, Robert Louis Schmidt: Bidirectionally predicted pictures or video object planes for efficient and flexible video coding. AT&T, June 11, 2002: US06404813 (137 worldwide citation)

A method is provided for decoding a bit stream representing an image that has been encoded. The method includes the steps of: performing an entropy decoding of the bit stream to form a plurality of transform coefficents and a plurality of motion vectors; performing an inverse transformation on the p ...


23
Maxwell T Sandford II, Theodore G Handel, Jonathan N Bradley: Compression embedding. The Regents of the University of California Office of Technology Transfer, Milton D Wyrick, July 7, 1998: US05778102 (135 worldwide citation)

A method and apparatus for embedding auxiliary information into the digital representation of host data created by a lossy compression technique and a method and apparatus for constructing auxiliary data from the correspondence between values in a digital key-pair table with integer index values exi ...


24
Andrew E Borthwick: Probabilistic record linkage model derived from training data. Choicemaker Technologies, Nixon & Vanderhye P C, February 18, 2003: US06523019 (134 worldwide citation)

A method of training a system from examples achieves high accuracy by finding the optimal weighting of different clues indicating whether two data items such as database records should be matched or linked. The trained system provides three possible outputs when presented with two data items: yes, n ...


25
Henrique S Malvar: System and method for partially whitening and quantizing weighting functions of audio signals. Microsoft Corporation, Edmond A DeFrank, Craig S Fischer, Lyon Harr & Defrank L, May 29, 2001: US06240380 (128 worldwide citation)

The coder/decoder (codec) system of the present invention includes a coder and a decoder. The coder includes a multi-resolution transform processor, such as a modulated lapped transform (MLT) transform processor, a weighting processor, a uniform quantizer, a masking threshold spectrum processor, an ...


26
Srinivas Gutta: Method and apparatus for recommending television programming using decision trees. Koninklijke Philips Electronics, April 27, 2004: US06727914 (123 worldwide citation)

A method and apparatus are disclosed for recommending television programming using decision trees. Inductive principles are utilized to identify a set of recommended programs that may be of interest to a particular viewer, based on past viewing behavior. A user's viewing history is monitored an ...


27
Wenjun Zeng, Shaw Min Lei: Digital image scrambling for image coding systems. Sharp Laboratories of America, Marger Johnson & McCollom P C, January 7, 2003: US06505299 (121 worldwide citation)

Methods and apparatus for encryption and decryption of digital images are disclosed. A preferred embodiment operates on an image frame after that frame has undergone a space-frequency transform operation, such as a block DCT or wavelet transform, and before the frame is passed to a bitstream coder f ...


28
Henrique S Malvar: System and method for producing a fixed effort quantization step size with a binary search. Microsoft Corporation, Edmond A DeFrank, Lyon Harr & DeFrank, January 30, 2001: US06182034 (116 worldwide citation)

The coder/decoder (codec) system of the present invention includes a coder and a decoder. The coder includes a multi-resolution transform processor, such as a modulated lapped transform (MLT) transform processor, a weighting processor, a uniform quantizer, a masking threshold spectrum processor, an ...


29
Alexander F Keith, Edward L Schwartz, Ahmad Zandi, Martin Boliek, Michael J Gormish: Compression/decompression using reversible embedded wavelets. Ricoh Corporation, Ricoh Company, Blakely Sokoloff Taylor & Zafman, October 12, 1999: US05966465 (114 worldwide citation)

A compression and decompression system in which a reversible wavelet filter are used to generates coefficients from input data, such as image data. The reversible wavelet filter is an efficient transform implemented with integer arithmetic that has exact reconstruction. The present invention uses th ...


30
Wlodek Holender: System and method for optimal logical network capacity dimensioning with broadband traffic. Telefonaktiebolaget LM Ericsson, Jenkens & Gilchrist P C, June 9, 1998: US05764740 (114 worldwide citation)

A general dimensioning method and system for allocating limited transmission resources to virtual networks given offered traffic for virtual paths on the virtual networks. The N-layer virtual network dimensioning problem is reduced to an equivalent virtual path dimensioning problem by collapsing the ...



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