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:
Sep. 30, 2014
Filed:
Jan. 31, 2011
Susumu Senshu, Kanagawa, JP;
Susumu Senshu, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
A recording medium comprises an IC chip including circuitry configured to record data of one or more kinds of software, transmit and receive information to and from an external apparatus without contacting the external apparatus, and communicate with the external apparatus and execute mutual authentication processing for permitting access to the recorded information. The data recorded on the circuitry includes identification information for respective kinds of software recorded on a recording surface of the recording medium, key information necessary for installation of the respective kinds of software, and usage control information indicating a number of installations available for installation of the respective kinds of software. The key information is readout to the external apparatus and the usage information is rewritten by the external apparatus only when mutual authentication is correctly performed between the IC chip and the external apparatus.