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:
Oct. 04, 2011
Filed:
Apr. 06, 2007
Toshiaki Hata, Tokyo, JP;
Toshiaki Hata, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
During traveling a vehicle, an on-vehicle unit control circuittransmits regularly a mobile unit verification encryption code stored in a storage partof an on-vehicle unitto a mobile unit; a transmission circuitof the mobile unitreplies a response signal to the on-vehicle unitevery time the verification code is received; and the control circuitof the on-vehicle unitupdates and stores vehicle environmental information in the storage partupon receiving the response signal, and if the on-vehicle unitcannot receive any response signal from the mobile unit, a driver is notified with display lamp, hazard lamp, or alarm buzzerthat the response signal has not been received.