Title:
COMMUNICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/1996/025016
Kind Code:
A1
Abstract:
A master device transmits a continuation (or stopping) message on a communication line without causing the message to collide with response messages continuously transmitted from a slave device in the communication channel. Upon elapsing a time T1 after the completion of the transmission of a request message, a fault diagnosing tester (5) (master) transmits the continuation message when the count value of an idle counter exceeds P3' and an engine controller (1) (slave) transmits the next response message when the count value of the idle counter exceeds P2' (>P3'). Thus, the continuation message can be transmitted from the tester (5) before the controller (1) transmits the next response message without causing both messages to collide with each other on the communication line.
Inventors:
TAGUCHI AKEMI (JP)
HYODO MASAHITO (JP)
HYODO MASAHITO (JP)
Application Number:
PCT/JP1995/002406
Publication Date:
August 15, 1996
Filing Date:
November 24, 1995
Export Citation:
Assignee:
NIPPON DENSO CO (JP)
TAGUCHI AKEMI (JP)
HYODO MASAHITO (JP)
TAGUCHI AKEMI (JP)
HYODO MASAHITO (JP)
International Classes:
B60R16/02; B60R16/023; B60R16/03; G05B19/042; H04Q9/00; H04Q9/14; (IPC1-7): H04Q9/00
Foreign References:
| JPH0265599A | 1990-03-06 | |||
| JPH03124141A | 1991-05-27 |
Other References:
See also references of EP 0756434A4
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