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:
Aug. 07, 2007

Filed:

Mar. 09, 2004
Applicant:

Hisayuki Watanabe, Iwaki, JP;

Inventor:

Hisayuki Watanabe, Iwaki, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01C 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

Communication data is relayed to vehicle-mounted terminals in vehicles traveling in a particular area via vehicle-mounted terminals in vehicles. Each of the vehicle-mounted terminals functioning as intermediary terminals relays communication data to vehicle-mounted terminals in vehicles existing in a particular direction only until the communication data reaches the vehicle-mounted terminal in the vehicle closest to the target position, i.e., the center of the particular area. The communication data having reached the vehicle-mounted terminal in the vehicle closest to the target position is relayed to surrounding vehicle-mounted terminals through broadcasting.


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