The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 12, 1996
Filed:
Aug. 24, 1993
Applicant:
Inventor:
Thomas W Thomson, Santa Cruz, CA (US);
Assignee:
National Semiconductor Corporation, Santa Clara, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
395181 ; 39520001 ; 371-51 ;
Abstract
A CAN node with a CAN protocol controller device reconnects to a CAN bus from the node's busoff state only after the node has successfully decoded a plurality of good messages from other devices on the CAN bus. Reception of a plurality of good messages advantageously provides a CAN protocol controller device which exits its busoff state with a high degree of confidence that the fault that caused the node to enter the busoff state has been cleared.