41
James H Wilkinson: Apparatus for compressing image data employing entropy encoding of data scanned from a plurality of spatial frequency bands. Sony Corporation, Sony United Kingdom, William S Frommer, Alvin Sinderbrand, July 16, 1996: US05537493 (105 worldwide citation)

A data compression technique is described for use in systems employing frequency separation, such as wavelet separation, in which the sub bands (0 to 9) have different numbers of frequency component values therein. The sub bands are scanned to form a stream of data for feeding to an entropy encoder ...


42
Wei ge Chen, Ming Chieh Lee: Entrophy code mode switching for frequency-domain audio coding. Microsoft Corporation, Klarquist Sparkman, October 9, 2001: US06300888 (104 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 ...


43
Hewitt D Crane, John D Peters, Eugenio Martinez Uriegas: Method and apparatus for decoding spatiochromatically multiplexed color images using predetermined coefficients. SRI International, Townsend and Townsend and Crew, May 4, 1999: US05901242 (104 worldwide citation)

Color image decoding is achieved by a simplified method of decoding a spatially and chromatically multiplexing image plane (32), such as a plane consisting of RGB (Red-Green-Blue) pixels (22) by performing a summation of pixels of all three colors in a neighborhood of a missing pixel. The decoding p ...


44
Wm Douglas Withers: Rapid entropy coding for data compression or decompression. Pegasus Imaging Corporation, Langen & Langen, October 6, 1998: US05818369 (103 worldwide citation)

A method of manipulating a series of data units comprising distinct data values, including the steps of modelling the occurrence probability of each distinct data value, repeatedly performing the steps of narrowing a manipulation result number into a subinterval determined by the occurrence probabil ...


45
Hamid Gharavi: Apparatus and method for differential sub-band coding of video signals. Bell Communications Research, James W Falk, Stephen M Gurey, November 6, 1990: US04969040 (103 worldwide citation)

A method and apparatus for achieving a high compression of a video signal. The PEL-by-PEL difference between an input signal consisting of digital PEL values of a scanned video signal and a motion compensated interframe prediction signal is decomposed into several narrow bands using separable two-di ...


46
David A Igel, Bruce L Wilkoff: Non-programmable automated heart rhythm classifier. The Cleveland Clinic Foundation, Calfee Halter & Griswold, February 20, 2001: US06192273 (99 worldwide citation)

A nonprogrammable automated heart rhythm classifier that may be used alone or in conjunction with a therapy system for delivering shock treatment or therapeutic drugs to a patient, a monitoring or recording system, a paging or alarm system, or other rhythm classifying device. The nonprogrammable hea ...


47
Joseph G Earl, Michael D Moffitt: Method and apparatus for increasing information compressibility. Robert A Brown, August 23, 1994: US05341440 (99 worldwide citation)

A system for compressing information arranges unprocessed information into a plurality of data planes. The data planes are converted into a combined planar data output. The combined planar data output is created by regrouping data elements which make up the unprocessed information. The regrouping is ...


48
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 (98 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 ...


49
Paul C Kocher, Joshua M Jaffe, Benjamin C Jun: Using unpredictable information to minimize leakage from smartcards and other cryptosystems. Cryptography Research, Joseph Yang, Thomas R Lane, Skadden Arps et al, December 4, 2001: US06327661 (98 worldwide citation)

Methods and apparatuses are disclosed for securing cryptosystems against external monitoring attacks by reducing the amount (and signal to noise ratio) of useful information leaked during processing. This is generally accomplished by incorporating unpredictable information into the cryptographic pro ...


50
Maxwell T Sandford II, Theodore G Handel, Jonathan N Bradley: Compression embedding. The Regents of the University of California, Milton D Wyrick, March 10, 1998: US05727092 (98 worldwide citation)

A method of embedding auxiliary information into the digital representation of host data created by a lossy compression technique. The method applies to data compressed with lossy algorithms based on series expansion, quantization to a finite number of symbols, and entropy coding. Lossy compression ...



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