1
Kazumoto Iinuma, Takanori Sashida: Information network system making use of television or radio broadcasting and broadcast receiving user terminal. NEC Corporation, Sughrue Mion Zinn Macpeak & Seas PLLC, May 8, 2001: US06230325 (54 worldwide citation)

The invention provides an information network system and a broadcasting receiving user terminal by which bidirectional communication can be established between a user terminal and a data base center and between the data base center and a broadcasting station so that a user can enjoy a service provid ...


2
Kazumoto Iinuma: Interframe CODEC for composite color TV signals comprising means for inverting the polarity of carrier chrominance signals in every other frame or line. Nippon Electric, Sughrue Rothwell Mion Zinn and Macpeak, February 27, 1979: US04142205 (52 worldwide citation)

An interframe encoder for a composite color television signal comprises an inverter for inverting the polarity of the carrier chrominance signal. Responsive to a switching signal synchronized with the frame or line periods, the television signal and the polarity-inverted signal are alternatingly swi ...


3
Kazumoto Iinuma: Code converting circuits. Nippon Electric, Claude Hamrick, June 30, 1981: US04276544 (43 worldwide citation)

Code converting circuits for facsimile and other information communications systems in which run length codes are converted to codes having variable lengths and the variable length codes are converted into a word code train, wherein each word comprises N bits, and the converted word code train is st ...


4
Yukihiko Iijima, Kazumoto Iinuma, Tatsuo Ishiguro: Composite feedback predictive code communication system for a color TV signal including a carrier chrominance signal. Nippon Electric, Sughrue Rothwell Mion Zinn and Macpeak, February 21, 1978: US04075655 (33 worldwide citation)

Responsive to signal samples of a color television signal including a carrier chrominance signal, a predictive encoder produces quantized prediction error signals in compliance with a first transfer characteristic (1 - P.sub.1)(1 - P.sub.2), wherein minima which are substantially equal to zero are t ...


5
Kazumoto Iinuma: Predictive encoder or decoder with selection of one of two or more prediction signals according to prediction error signal amplitudes. Nippon Electric, Sughrue Rothwell Mion Zinn and Macpeak, January 2, 1979: US04133006 (25 worldwide citation)

A system carries out predictive encoding or decoding by selecting a prediction signal for a longer period among two or more prediction signals at the beginning of an autocorrelated signal to be encoded or of a prediction error signal to be decoded. At least one of the prediction signals may be a com ...


6
Kazumoto Iinuma, Toshio Koga, Akihiro Furukawa, Sakae Okubo, Hideo Hashimoto, Naoki Mukawa: Signal processing unit for producing a selected one of signals predictive of original signals. NEC Corporation, Nippon Telegraph and Telephone Corporation, Sughrue Mion Zinn Macpeak & Seas, January 31, 1989: US04802006 (22 worldwide citation)

In a predictive encoder for use particularly in a conference television system, a signal processing unit is used in producing a prediction signal and comprises three prediction circuits (22, 23, 31) and a selection circuit (24) coupled to the prediction circuits. The prediction circuits are for prod ...


7
Kazumoto Iinuma: System for transmitting a video signal with short runs avoided in a signal encoded from the video signal. Nippon Electric, Sughrue Mion Zinn Macpeak and Seas, October 2, 1984: US04475127 (17 worldwide citation)

In an encoder responsive to a video signal variable between high and low levels, a logic converter logically converts a succession of result signals, derived from the video signal by the use of a predetermined number of halftone threshold levels, into a sequence of converted signals having that run ...


8
Touru Usubuchi, Kazumoto Iinuma: Digital facsimile transmission system for screened pictures. Nippon Electric Company, Sughrue Rothwell Mion Zinn and Macpeak, July 29, 1980: US04215375 (16 worldwide citation)

A digital facsimile system suitable for the facsimile transmission of newspaper pages having screened picture portions and printed character portions is disclosed. The transmitter receives a digitized facsimile signal which is a train of pel codes formed by scanning a picture to be transmitted. In r ...


9
Kazumoto Iinuma: Method of processing picture signal to increase average run length and apparatus therefor. NEC Corporation, Sughrue Mikon Zinn Macpeak and Seas, August 6, 1985: US04533957 (13 worldwide citation)

A prediction error signal and a prediction state signal are generated for each of a plurality of picture elements (or bit planes or gray codes) to be encoded. The picture error signal is based on a plurality of previously encoded picture element data (or bit plane or gray code). The prediction state ...


10
Kazumoto Iinuma: Code conversion system. Nippon Electric, Blakely Sokoloff Taylor & Zafman, August 6, 1985: US04534055 (13 worldwide citation)

In a code conversion system comprising an encoder and a decoder in combination, the encoder comprises an input terminal for receiving a multi-level time series signal having at least three signal levels subject to a variation of occurrence frequency of levels, a circuit for detecting the highest occ ...