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:
Feb. 16, 2010
Filed:
Jun. 11, 2007
Applicants:
Kentarou Teshima, Kariya, JP;
Kazuhiro Nakashima, Kariya, JP;
Kenichi Ogino, Toyota, JP;
Inventors:
Assignee:
DENSO Corporation, Kariya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08G 1/123 (2006.01);
U.S. Cl.
CPC ...
Abstract
When searching of a location of a vehicle is commanded, a vehicle search signal is transmitted from a portable device. The vehicle search signal includes an ID code of the portable device. When a vehicle side communication unit receives the valid ID code, the vehicle side communication unit transmits a vehicle side response signal to the portable device. The portable device computes a distance from the portable device to the vehicle based on a signal level of the received vehicle side response signal. A notifying device notifies the computed distance.