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:
Jul. 23, 1991
Filed:
Apr. 25, 1989
Yukio Utsunomiya, Tokyo, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
An IC card processing apparatus has a data reading/writing unit which accepts an IC card and electrically connects the IC card with terminal equipment. Data is exchanged with the IC card and/or the data reading/writing unit. To shorten the time for processing data of the IC card processing apparatus, the terminal equipment directly exchanges data with the IC card. To achieve this, the data line of the terminal equipment is connected to the data line of the IC card. Before using the IC card for transactions, the data reading/writing unit feeds a personal identification number (PIN) to the IC card for identifying the PIN information. To prevent the PIN information from being delivered to the terminal equipment, a switch is provided between the data line of the terminal equipment and the data line of the IC card. While identification of the PIN information is underway, the switch remains totally open, preventing reception of the code by an unauthorized party.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile