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:
Oct. 27, 2009
Filed:
Mar. 04, 2004
Masahiro Sueyoshi, Kanagawa, JP;
Kei Tateno, Tokyo, JP;
Yoshiaki Hirano, Kanagawa, JP;
Katsuyuki Teruyama, Tokyo, JP;
Masahiro Sueyoshi, Kanagawa, JP;
Kei Tateno, Tokyo, JP;
Yoshiaki Hirano, Kanagawa, JP;
Katsuyuki Teruyama, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
A data processing device able to keep a technique for generation of the key data in a key generating means secret from a developer of an authenticating means, wherein an authentication program has a description for calling up a function in a key generation program and entering identification data of service etc. input from an IC of an IC card as input parameters of the function and wherein a key generation program generates a key by using the identification data written at predetermined addresses as input parameters in accordance with the execution of a code on the basis of the authentication program.