Transmitting method, receiving method, and communication method for bi-directional bus system, and bi-directional bus system
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United States of America Patent
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-
Mar 28, 1995
Grant Date -
N/A
app pub date -
Dec 17, 1993
filing date -
Dec 21, 1992
priority date (Note) -
In Force
status (Latency Note)
Importance
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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