Communication system, communication circuit and...

Details Communication system, communication circuit and... Communication system, communication circuit and...

2006-02-03

2008-09-23

Knoll, Clifford H (Department: 2111)

Electrical computers and digital data processing systems: input/

Intrasystem connection

Bus access regulation

C370S447000

Reexamination Certificate

active

07428608

ABSTRACT:
A communication system according to an embodiment of the invention includes: a plurality of communication nodes; and a common bus connected with the plurality of communication nodes, wherein the plurality of communication nodes individually checks a use state of the bus to allow/disallow transmission, and at least one of the plurality of communication nodes includes: a storage circuit storing data representing whether or not a frame follows a first frame sent to the bus; and a control circuit determining, when outputting a second frame after the completion of transmission of the first frame, whether or not to output the second frame to the bus with reference to the data stored in the storage circuit.

REFERENCES:
patent: 2006/0098682 (2006-05-01), Nichols
patent: 2006/0104371 (2006-05-01), Schuermans et al.
patent: 61-195453 (1986-08-01), None
patent: 3-278156 (1991-12-01), None
patent: 9-6721 (1997-01-01), None

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