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.

Date of Patent:
Apr. 30, 2013

Filed:

Jun. 21, 2010
Applicants:

Kazuhiro Kanee, Chiba, JP;

Muneki Shimada, Tokyo, JP;

Inventors:

Kazuhiro Kanee, Chiba, JP;

Muneki Shimada, Tokyo, JP;

Assignees:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A receiver is configured to receive, from a mobile device of a first type adapted to read a content from a recording medium and run the content, a first device identifier identifying the mobile device of the first type and a recording medium identifier identifying a recording medium loaded in the mobile device of the first type, along with a digital signature generated in the mobile device of the first type using an encryption key secretly stored in the mobile device of the first type. A signature verification unit is configured to verify the authenticity of the digital signature. A voucher issuance unit is configured to issue a voucher to a mobile device of a second type adapted to acquire a content by downloading the content and to run the content accordingly and mapped into the mobile device of the first type, so that the mobile device of the second type is capable of downloading a content.


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