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:
Jan. 09, 2018
Filed:
Aug. 25, 2015
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Hideki Matsushima, Osaka, JP;
Teruto Hirota, Osaka, JP;
Naoyoshi Otsubo, Osaka, JP;
Koichi Morioka, Osaka, JP;
Natsume Matsuzaki, Osaka, JP;
Norio Sanada, Hyogo, JP;
Abstract
A content reproduction system includes an information processing terminal () and a secure device (). The information processing terminal () receives a copyright protection application program () from an application distribution server (). The copyright protection application program includes a first program having a first execution format executable in the information processing terminal () and a second program having a second execution format different from the first execution format and executable in the secure device (). The second program is encrypted with a program key () held in the secure device (). By extracting and executing the first program, the information processing terminal () extracts the second program and transmits the second program to the secure device (). The secure device () receives the second program from the information processing terminal (), decrypts the second program using a program key stored in a key storing unit (), and executes the second program.