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:
Aug. 18, 1998
Filed:
May. 31, 1996
Shuzo Fujioka, Hyogo, JP;
Mitsubishi Electric Semiconductor Software Co., Ltd., Hyogo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A non-contact type IC card comprising a memory including a manufacturer code area and an error signal output circuit is disclosed. The error signal output circuit outputs an error signal such that an access from a read/write apparatus is allowed when a password coincidence is obtained when a predetermined code is stored in the manufacture code area. On the other hand, when the predetermined code is not stored in the manufacturer code area, the error signal output circuit outputs an error signal such that an access to all the memory area from the read/write apparatus is allowed regardless of a result of the password collation performed by the password collation circuit.