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. 16, 2001
Filed:
Apr. 10, 2000
Akihisa Kawasaki, Kanagawa, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
An authorization system for authorizing an IC card is provided. When an IC card—storing a different code from the code proper to an in-vehicle device and yet having been authorized by the in-vehicle device—inserted to the invehicle device, the system allows the in-vehicle device to authorize the IC card and vice versa. In other words, when an IC card having a different code from the proper code to the in-vehicle device is inserted into the in-vehicle device, an on-road apparatus disposed at a tollgate rewrites the code stored in the in-vehicle device to agree with the code stored in the IC card. As a result, the codes of the in-vehicle device and the IC card agree with each other, and thus the IC card can be authorized.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile