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:
Jan. 03, 2006

Filed:

Apr. 16, 2001
Applicants:

Katsumi Ota, Kanagawa, JP;

Ricardo Wong, Kanagawa, JP;

Takeshi Akatsuka, Yokohama, JP;

Inventors:

Katsumi Ota, Kanagawa, JP;

Ricardo Wong, Kanagawa, JP;

Takeshi Akatsuka, Yokohama, JP;

Assignee:

Nissan Motor Co., Ltd., Kanagawa, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 12/56 (2006.01);
U.S. Cl.
CPC ...
Abstract

A communications network system which is capable of continuously performing a normal communications of data on a communication cable. A Navigation unittransmits an intersection data having ID0001 to an automatic transmission control unitvia communications cable. A gatewaywhich accepts communications from an information system network B to a control system network A is intervened on a communications line between both networks. When detecting a sending data having an ID code of ID0001, gatewaycompares its communication period 0 of the data with previously stored communications period. If they are coincident with each other, the communications from network B to network A is enabled. If communications periods are incoincident with each other, the ID code when the intersection data is transmitted is changed to ID0110 and communications enabling (accepting) ID code by gateway is also changed from ID0001 to ID0110.


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