Communication control apparatus using CAN protocol

Details Communication control apparatus using CAN protocol Communication control apparatus using CAN protocol

2005-05-31

2005-05-31

Dang, Khanh (Department: 2111)

Electrical computers and digital data processing systems: input/

Access arbitrating

C710S305000, C710S116000

Reexamination Certificate

active

06901469

ABSTRACT:
A communication control apparatus for performing an arbitration when a collision of frames occurs on a bus has a plurality of message boxes. Each message box stores at least a message for a transmission purpose and an identification code indicative of both a priority degree and a sort thereof. The apparatus determines whether the transmission of the frame is successful, and stops a transmission of bits when the transmission of the frame fails. The apparatus further detects a specific event, which delays the transmission of the frame, and sets a sequence of the message box related to the specific event as a first sequence by selecting any one of the low transmission sequence message boxes instead of the highest transmission sequence message box.

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patent: A-1-143537 (1989-06-01), None
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