The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 28, 1995
Filed:
Dec. 17, 1993
Yoshio Osakabe, Kanagawa, JP;
Shigeo Tanaka, Tokyo, JP;
Akira Katsuyama, Kanagawa, JP;
Hiroshi Yamazaki, Kanagawa, JP;
Yasuo Kusagaya, Tokyo, JP;
Noriko Kotabe, Chiba, JP;
Kouichi Sugiyama, Kanagawa, JP;
Makoto Sato, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
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.