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US 6,286,071 B1Granted
Communication control method, communication system and electronic device used therefor
AssigneeSony Corporation
InventorYuko Iijima
Life of this patent
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AssigneeSony Corporation
InventorYuko Iijima
Estimating the term…
A communication system includes a communication control section which may receive bus use requests of both of a DV camera/recorder (50) which becomes an output machine on a serial bus (60D) and a DV deck (40) which becomes an input machine on the serial bus (60D), may check whether or not the serial bus (60D) which were requested to be used is in use, may open the serial bus (60D) to the DV camera/recorder (50) and the DV deck (40) which issued the use requests, may protect a connection between the DV camera/recorder (50) and the DV deck (40), may open a serial bus (60A) to an IRD receiver (10) and a mini disc (20) which issued use requests and which may protect a connection between the IRD receiver (10) and the mini disc (20). According to this arrangement, even when data used on a communication control bus have different signal formats, a communication control bus of other specific interval in which the use requests are not overlapped can be used simultaneously by other electronic devices, and such communication control bus can be used effectively.
In a method of controlling a communication between a plurality of electronic devices connected by a communication control bus in a daisy-chain fashion, said communication control method comprising the steps of:
In a communication system in which a plurality of electronic devices are connected by a communication control bus in a daisy-chain fashion, a communication control system includes bus management control means which receives bus use requests of both of an electronic device which becomes an output machine on said communication control bus and an electronic device which becomes an input machine on said communication control bus, said bus management control means checks whether or not a specific interval of the communication control bus which was requested to be used is in use, said bus management control means opens the communication control bus of said specific interval to electronic devices of signal input and output pair which issued said requests to use bus and which protects a connection between said electronic devices if the communication control bus of said specific interval which was requested to be used is not in use.
Dependencies are inferred from the claim text.