31
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 (118 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 ...


32
Chihiro Nakagawa, Hiroyuki Fukuda, Hiroshi Sasaki, Chikako Mogi, Hidetoshi Yamada: Image data coding apparatus and coding method. Olympus Optical, Frishauf Holtz Goodman & Woodward, December 17, 1991: US05073820 (117 worldwide citation)

An image data coding apparatus performs first and second coding processes. A controller outputs first and second control signals. An orthogonal transform circuit performs orthogonal transform on image data of one screen and generates an transformed output. A quantizing circuit quantizes the transfor ...


33
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 (115 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 ...


34
Navin Chaddha: Global motion estimator for motion video signal encoding. Microsoft Corporation, Schwegman Lundberg Woessner & Kluth P A, December 1, 1998: US05844613 (115 worldwide citation)

A transformation filter estimates global transformation parameters between a current frame and a previous frame of a motion video image according to corresponding relative positions of pixels within the two frames. Such estimated global transformation parameters estimate global translation, rotation ...


35
Moe Rahnema: Packet routing system and method for achieving uniform link usage and minimizing link load. Motorola, Gregory J Gorrie, January 21, 1997: US05596722 (114 worldwide citation)

Data packets are routed among nodes of a communication system in a uniform fashion. Substantial uniform link usage is achieved within allowed routes determined by end to end transport delay criteria. Initial routes are selected for each source--destination pair from alternative minimal hop routes. L ...


36
Ahmad Zandi, Edward L Schwartz, Michael J Gormish, Martin Boliek: Method and apparatus for compression using reversible wavelet transforms and an embedded codestream. Ricoh Company, Ricoh Corporation, Blakely Sokoloff Taylor & Zafman, February 27, 2001: US06195465 (113 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 ...


37
Patrick W Ransil, Aleksey V Martynov, James S Larson, James R Collette, Robert Wai Chi Chu, Partha Saha: Method and apparatus for data partitioning and replication in a searchable data service. Amazon Technologies, Robert C Kowert, Meyertons Hood Kivlin Kowert & Goetzel P C, March 23, 2010: US07685109 (110 worldwide citation)

Method and apparatus for repartitioning and replication of a searchable index in a searchable data service. The searchable data service may provide a searchable index to a backend data store. The searchable index may be repartitioned, and a partition may be moved to another storage node, to allow th ...


38
J Ward MacArthur, James V Radomski: Specific coefficient of performance measuring device. Honeywell, Alfred N Feldman, April 9, 1985: US04510576 (109 worldwide citation)

By measuring the power supplied to a compressor motor and by measuring four temperatures within a mechanical vapor-compression system, it is possible to develop a device for measuring and/or displaying the specific coefficient of performance of the mechanical vapor-compression system. The use of the ...


39
Jae Cheol Son: Variable length code detection in a signal processing system. Samsung Electronics Company, Kent B Chambers, Skjerven Morrill MacPherson Franklin & Friel L, October 13, 1998: US05821886 (109 worldwide citation)

A group of incoming data stream bits having packed variable length code ("VLC") words is applied to an entropy code bit length searching module. The group of bits is replicated within a plurality of matching modules selectively distributed among entropy code bit length searching logic units. Each un ...


40
Wei ge Chen, Ming Chieh Lee: Entrophy code mode switching for frequency-domain audio coding. Microsoft Corporation, Klarquist Sparkman, October 9, 2001: US06300888 (108 worldwide citation)

A frequency-domain audio coder selects among different entropy coding modes according to characteristics of an input stream. In particular, the input stream is partitioned into frequency ranges according to some statistical criteria derived from a statistical analysis of typical or actual input to b ...