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.:

US 7793354 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 07, 2010

Filed:

Jun. 20, 2005
Applicants:

Shinichi Kazami, Kanagawa, JP;

Kazuyoshi Takahashi, Tokyo, JP;

Inventors:

Shinichi Kazami, Kanagawa, JP;

Kazuyoshi Takahashi, Tokyo, JP;

Assignee:

Sony Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 7/04 (2006.01); G11B 5/86 (2006.01); G11B 3/64 (2006.01); G11B 7/28 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention relates to a system for verifying data recorded on an information recording medium. The system includes a data reproduction unit for reproducing data recorded on an information recording medium, a reproduction-verification-data generation unit for executing a calculation based on the data reproduced by the data reproduction unit to generate reproduction verification data, and a data comparison unit for comparing the reproduction verification data with recording verification data, which is obtained by executing a calculation based on data to be recorded on the information recording medium.


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