1
Mitsuo Nishiwaki: Digital data transmission system. Nippon Electric, Blakely Sokoloff Taylor & Zafman, October 5, 1982: US04353129 (23 worldwide citation)

A digital data transmission system comprises a transmitter and a receiver, said transmitter comprising storage means for temporarily storing a data bit string forming a coded digital video signal, means for supplying a read request signal for reading out said data bit string from said storage means, ...


2
Mitsuo Nishiwaki, Shuzo Tsugane, Naoki Mukawa, Hideo Kuroda: Method and arrangement for refreshing a frame memory in an interframe encoding system. NEC Corporation, Laff Whitesel Conte & Saret, March 15, 1988: US04731664 (20 worldwide citation)

A video signal frame memory is refreshed without requiring either a separate transmission line or the transmission of bursts of data. This is done by dividing the frame signals into blocks of data, which are further divided into lines and sub-blocks. During each frame, refreshing signals are sent on ...


3
Yoshinori Hatori, Mitsuo Nishiwaki, Naoki Mukawa: Decoding device capable of producing a decoded video signal with a reduced delay. Kokusai Denshin Denwa, Nippon Telegraph & Telephone, NEC, Sughrue Mion Zinn Macpeak & Seas, February 21, 1989: US04807028 (14 worldwide citation)

For decoding by the use of a decoder buffer memory an encoded video signal into which an encoder input signal is encoded with data compression on a basis of frames, a decoding device comprises a control signal producing unit for delivering a decoder control signal to a decoder when the frame of data ...


4
Syuzo Tsugane, Mitsuo Nishiwaki: System for coding video signal in block unit. NEC Corporation, Sughrue Mion Zinn Macpeak & Seas, July 7, 1987: US04679081 (6 worldwide citation)

A system for coding video signals e.g. television signals in block units is disclosed. The coding system comprises a synchronization detector for detecting a frame synchronization from the video signal, and a block former operative to divide the video signal in block units per a predetermined number ...


5
Mitsuo Nishiwaki, Tooru Amano, Tooru Yasuda, Sakae Okubo, Naoki Mukawa: Digital data transmitting device for communication paths of restricted and unrestricted transmission characteristics. NEC Corporation, Laff Whitesel Conte & Saret, August 18, 1987: US04688233 (4 worldwide citation)

In a digital data communication network comprising digital data transmitting and receiving devices (111, 122) and first and second digital communication paths (16, 17) connected to each other and to the transmitting and the receiving devices, respectively, a stuffing circuit (23) is controlled by a ...


6
Toru Shibuya, Mitsuo Nishiwaki: Multiplexing system. NEC Corporation, Schwartz Jeffery Schwaab Mack Blumenthal & Evans, March 1, 1988: US04729022 (4 worldwide citation)

In a multiplexing system wherein data from a plurality of terminal units are multiplexed in time slots shared to the terminal units and coded picture data are multiplexed at least in time slots shared for picture, there are provided picture signal encoding means operating at a clock frequency indepe ...


7
Hideo Kuroda, Naoki Mukawa, Makoto Hiraoka, Kiichi Matsuda, Mitsuo Nishiwaki, Shuzo Tsugane: System for detecting a transmission error. Nippon Telegraph & Telephone Public, Fujitsu, NEC, Staas & Halsey, June 30, 1987: US04677480 (2 worldwide citation)

Inter-frame encoding/decoding equipment for television signals includes inter-frame encoding equipment generating an encoded signal by encoding a difference between television signals and the output of a frame memory and inter-frame decoding equipment which receives the encoded signal sent from the ...


8
Hideo Kuroda, Naoki Mukawa, Makoto Hiraoka, Kiichi Matsuda, Mitsuo Nishiwaki, Shuzo Tsugane: System for detecting a transmission error. Nippon Telegraph & Telephone Public Corporation, Fujitsu, NEC Corporation, Staas & Halsey, December 13, 1988: US04791485 (2 worldwide citation)

An inter-frame encoding/decoding equipment for television signals consists of inter-frame encoding equipment encoding a difference between television signals and the output of a frame memory and inter-frame decoding equipment which receives an encoded signal sent from the inter-frame encoding device ...