31
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 (114 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 ...


32
Moe Rahnema: Packet routing system and method for achieving uniform link usage and minimizing link load. Motorola, Gregory J Gorrie, January 21, 1997: US05596722 (111 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 ...


33
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 ...


34
Alan Irvin Penn: Method of and apparatus for analyzing images and deriving binary image representations. Lowe Hauptman Gopstein & Berner, December 8, 1998: US05848198 (105 worldwide citation)

Data from multiple image sources are processed with a memory storing a library of data catalogs, each corresponding to one of the image sources. The catalogs have entries corresponding to the images. Each catalog entry has signal values specifying how to (1) generate an Analysis Image corresponding ...


35
Nicholas George, Wanli Chi: Imaging using a multifocal aspheric lens to obtain extended depth of field. The University of Rochester, Kenneth J Lukacher, August 9, 2005: US06927922 (105 worldwide citation)

A system for imaging with a circularly symmetric multifocal aspheric lens is provided for obtaining an extended depth of field. The system includes a camera for capturing an image of at least one object through a circularly symmetric multifocal aspheric lens to provide a blurred image, and a compute ...


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 (104 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
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 ...


38
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 ...


39
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 (104 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 ...


40
J Ward MacArthur, James V Radomski: Specific coefficient of performance measuring device. Honeywell, Alfred N Feldman, April 9, 1985: US04510576 (102 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 ...



Click the thumbnails below to visualize the patent trend.