Multiplex communications – Communication techniques for information carried in plural... – Adaptive
Patent
1993-12-17
1997-03-04
Olms, Douglas W.
Multiplex communications
Communication techniques for information carried in plural...
Adaptive
370522, 3408255, 395288, 348 13, H04J 314
Patent
active
056087306
ABSTRACT:
There is disclosed a communication system using a bi-directional bus, which includes a plurality of devices (e.g., TV image receiver or video tape recorder, etc.) connected to each other. Each device includes a transmit signal formation unit having a frame structure including an address field for specifying addresses of devices between which communication is carried out, a control field for specifying whether communication is carried out in the state where device on the receiving side is locked or in the state where that device is unlocked, and a data field for specifying data to be transmitted. For transmitting data having a data quantity greater than data capacity of the data field, the data is divided into a plurality of frames, an indication to lock device on the receiving side is given to control field of a frame transmitted first, and an indication to unlock that device is given to control field of a frame transmitted last. The transmit signal thus indicated is transmitted through the bi-directional bus by a bus output unit. In addition, there are also disclosed a transmitting method, a receiving method and a communication method, which can be applied to such a bi-directional bus system.
REFERENCES:
patent: 5031175 (1991-07-01), Tanaka et al.
patent: 5249182 (1993-09-01), Van Steenburgge et al.
patent: 5319642 (1994-06-01), Ota
patent: 5343469 (1994-08-01), Oshima
patent: 5473606 (1995-12-01), Hoekstra
Katsuyama Akira
Kotabe Noriko
Kusagaya Yasuo
Osakabe Yoshio
Sato Makoto
Biddle, Esq. Robert P.
Miller Jerry A.
Musacchio, Esq. Pasquale
Olms Douglas W.
Rao Seema
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