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:
Apr. 03, 2001
Filed:
Jun. 14, 1999
Sadao Kokubu, Aichi-ken, JP;
Hisashi Aoki, Aichi-ken, JP;
Takashi Mizuno, Aichi-ken, JP;
Shinichi Koga, Aichi-ken, JP;
Abstract
When an engine is started with a key,A inserted in an ignition key cylinder of a vehicle,, a vehicle-side controller,transmits operational data to the key,A and stores in the key,A. Further, when a personal computer,is operated with the key,A inserted in an R/W device,, the R/W device,reads the operational data from the key,A and transfers to the personal computer,. In this structure, when a storage capacity of the key,A becomes full, the vehicle-side controller,stores the operational data in a storage portion of its own, and when the key,A is initialized, the stored operational data is written in the key,A. For this reason, even when initialization of the key,A is difficult, deletion of the operational data is prevented.