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.

Date of Patent:
Jun. 30, 1998

Filed:

Sep. 29, 1995
Applicant:
Inventors:

Nobutomo Takagi, Okazaki, JP;

Yasushi Kanda, Aichi-ken, JP;

Akihiro Sasaki, Anjo, JP;

Shigeru Uehara, Toyota, JP;

Shinji Shimoke, Nagoya, JP;

Assignee:

Nippondenso Co., Ltd., Kariya, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60Q / ; H04J / ;
U.S. Cl.
CPC ...
701-1 ; 701 29 ; 701 34 ; 370216 ; 370245 ; 370252 ; 3409322 ; 307 101 ;
Abstract

A circuit arrangement disposed in a node within a local area network is connected to a communication bus within the local area network. The circuit arrangement includes an input circuit for introducing data from the communication bus into the node. A node state detecting device is operative for detecting whether or not the node is in a stand-by state. A power feed suspending device is operative for suspending power feed to at least part of the input circuit when the node state detecting device detects that the node is in the stand-by state. A power feed restarting device is operative for monitoring a voltage at the communication bus, and restarting the power feed to at least part of the input circuit when the voltage at the communication bus becomes equal to a level indicating reception of data. A protective circuit is operative for protecting the input circuit from an abnormal current which flows from the communication bus.


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