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Kees Schouhamer Immink
Josephus A H M Kahlman, Kornelis A Schouhamer Immink, Gijsbert J Van Den Enden, Toshiyuki Nakagawa, Yoshihide Shinpuku, Tatsuya Narahara, Kosuke Nakamura: Modulation apparatus/method, demodulation apparatus/method and program presenting medium. Koninklijke Philips Electronics, Michael E Belk, January 2, 2007: US07158060 (8 worldwide citation)

How to record and play back data at a high line density. A DSV control bit determining/inserting unit 11 inserts DSV control bits for execution of DSV control into an input data string and outputs the data string including the DSV control bits to a modulation unit 12. The modulation unit 12 converts ...


2
Douglas L Whiting, Glen A George, Glen E Ivey: Data compression apparatus and method. Stac, Irell & Manella, May 14, 1991: US05016009 (222 worldwide citation)

An apparatus and method for converting an input data character stream into a variable length encoded data stream in a data compression system. The data compression system includes a history array means. The history array means has a plurality of entries and each entry of the history array means is f ...


3
James Au: Context adaptive variable length decoding system and method. UB Video, John R S Drange, Santosh K Chari, November 11, 2003: US06646578 (200 worldwide citation)

A system and method to perform context-adaptive variable length decoding (CAVLC) of transform coefficient levels for block-based motion-compensated decoding of moving pictures, corresponding to transform coefficients. The system and method includes complexity-reduction improvements in the coefficien ...


4
Ming Ting Sun, Kou Hu Tzou: High-speed flexible variable-length-code decoder. Bell Communications Research, Leonard Charles Suchyta, Stephen M Gurey, December 22, 1992: US05173695 (124 worldwide citation)

A variable-length decoder is disclosed in which a received variable-word-length encoded bit stream is input to a buffer (102) and read out in parallel sequences equal in length to the maximum length codeword. These sequences are read into cascaded latches (105, 107). The cascaded sequences in both l ...


5
Clay Mayers, Douglas L Whiting: Data compression apparatus and method using matching string searching and Huffman encoding. Stac Electronics, Irell & Manella, July 2, 1996: US05532694 (122 worldwide citation)

An apparatus and method for converting an input data character stream into a variable length encoded data stream in a data compression system. A sliding window data compression algorithm is combined with Huffman encoding on the strings and raw bytes. The Huffman table, in a compressed form, is prepe ...


6
John A Copeland III: Adaptive data compression method and apparatus. Hayes Microcomputer Products, Jones Askew & Lunsford, August 29, 1989: US04862167 (118 worldwide citation)

A method and apparatus for compressing data, particularly useful in a modem. The preferred method is implemented in a microprocessor within a modem, and dynamically adapts to changing data statistics. Parallel encoding and decoding tables are provided at the encoder and the decoder, and are updated ...


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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 (110 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 ...


8
Nir Kalkstein: Adaptive packet compression apparatus and method. Infit, Mark M Friedman, August 31, 1999: US05945933 (97 worldwide citation)

According to the present invention, there is provided a method for compressing each of a plurality of data packets to form a compressed packet for transmission by a communication device, the data packets being composed of a sequence of data elements and the data packets being stored on a first compu ...


9
Chung Chia Chang, Gregory L Davoll, Mohamed H El Ruby, Craig A Friske, Balakrishna R Iyer, John P Lazarus, David Wilhite, Kenneth E Plambeck: Method and system for adaptively building a static Ziv-Lempel dictionary for database compression. International Business Machines Corporation, Baker Maxham Jester & Meador, May 2, 1995: US05412384 (96 worldwide citation)

A system for creating a static data compression dictionary adapted to a hardware-based data compression architecture. A static Ziv-Lempel dictionary is created and stored in memory for use in compressing database records. No data compression occurs during dictionary construction. A fixed-size Ziv-Le ...


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Jay Moskowitz, Abraham Karron, Peter Squillante, Spencer Kravitz: Handheld facsimile and alphanumeric message transceiver operating over telephone or wireless networks. RTS Electronics, Brumbaugh Graves Donohue & Raymond, September 28, 1993: US05249220 (93 worldwide citation)

According to the present invention, a hand-held portable transmitter is provided which is capable of communicating with a variety of different message receiving hosts. The transmitter is provided with a technique for generating waveforms to communicate with foreign message receivers over a communica ...