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:
May. 26, 1998
Filed:
Nov. 06, 1996
Katsuhisa Tsuji, Hoi-gun, JP;
Denso Corporation, Kariya, JP;
Abstract
To provide a multiplex communication system where nodes can reliably shift to a sleep state even though the system has a very simple structure and even if abnormal conditions occur in any node, multiple nodes communicate with each other through a communication network, and when the individual nodes are in a state of being unable to shift to a sleep state, they set a sleep disable bit in signals to be transmitted and transmit them. When they become able to shift to the sleep state, the individual nodes confirm that they have not yet received an active sleep disable bit sent from other nodes continuously over a predetermined period of time or more. Thereafter, each individual node proceeds to the sleep state. According to the system, the individual nodes can proceed to the sleep state by simply determining non-transmission of the sleep disable bit from other nodes even in the presence of nodes deactivated due to failures.