Multiplex communications – Wide area network – Packet switching
Patent
1993-12-17
1995-03-28
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
370 941, 3701101, 34082507, 34082552, 348 8, H04L 1240
Patent
active
054024196
ABSTRACT:
A communication system using a bi-directional bus, comprises a plurality of devices (e.g., TV Image Receiver, Video Tape Recorder, etc. ) respectively including sub-devices (e.g., Monitor Image Receiver, TV tuner, Video Deck, etc.) adapted for executing the operation for a received control command. Each device comprises a transmit signal formation unit for forming a transmit signal having a frame structure consisting of an address field for specifying addresses of devices between which communication is carried out, and a data field for specifying a control command for a device or a sub-device, and including a channel select code of a fixed length, inserted at a predetermined position of the data field, indicating communication from a sub-device included in a device to any other device, communication from a device to a sub-device included in any other device, or communication from a device to a device; and a bus output unit for outputting, to the bi-directional bus, the transmit signal formed by the transmit signal formation unit.
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patent: 4872162 (1989-10-01), Tanaka et al.
patent: 5107256 (1992-04-01), Ueno et al.
patent: 5130793 (1992-07-01), Bordry et al.
patent: 5313408 (1994-05-01), Goto
Patent Abstracts of Japan, vol. 5, No. 74 (E-57), 16 May 1981 & JP-A-56 021 446 (Fujitsu Ltd.).
Katsuyama Akira
Kotabe Noriko
Kusagaya Yasuo
Osakabe Yoshio
Sato Makoto
Kizou Hassan
Miller Jerry A.
Olms Douglas W.
Sony Corporation
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