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:
Jun. 06, 2006
Filed:
May. 30, 2001
Applicants:
Masayuki Kumazawa, Kasuya-gun, JP;
Yuji Shimizu, Koga, JP;
Inventors:
Masayuki Kumazawa, Kasuya-gun, JP;
Yuji Shimizu, Koga, JP;
Assignee:
Matshushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 9/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
A data terminal equipment retrieves index data indicating content data. Then, the data terminal equipment authenticates the content data based on the index data. Only if the authenticity of the content data has been confirmed, the data terminal equipment retrieves the content data from a first server.