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:
Jul. 01, 2008
Filed:
Feb. 28, 2006
Applicant:
Nobutaka Tauchi, Toyoake, JP;
Inventor:
Nobutaka Tauchi, Toyoake, JP;
Assignee:
DENSO CORPORATION, Kariya, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08G 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
In the car navigation system including a vehicle communication apparatus mounted on a vehicle, different diffusion codes are assigned to each road such as a single lane road and a road with double lanes. In data transmission to other vehicles, each vehicle switches to and uses the diffusion codes assigned to the road on which own vehicle currently travels. Even if many on-coming vehicles travel in line, radio wave interference between the vehicles does not occurs and the lacking of communication channels also does not occurs because each vehicle uses the diffusion codes assigned to the road on which own vehicle travels.