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:
Dec. 21, 1993
Filed:
Aug. 12, 1992
Hitoshi Nakayama, Kanagawa, JP;
Hideo Tomita, Chiba, JP;
Sony Corporation, Tokyo, JP;
Abstract
A scrambling apparatus includes an IC card connector for receiving an IC card in which at least either scramble control information or unscramble control information is written in advance, a reading circuit for reading the stored contents of the IC card and a control system for controlling the operation of the apparatus. The scrambling apparatus may also include an IC card connector for receiving a data storing IC card, a data writing circuit for writing scramble control information, unscramble control information and the information related to the operations of the apparatus into the IC card.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile