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:
Mar. 27, 2007
Filed:
Dec. 04, 2000
Applicants:
Susumu Kusakabe, Kanagawa, JP;
Motoki Nakade, Tokyo, JP;
Isao Yamada, Tokyo, JP;
Inventors:
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G07F 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An information distribution system includes a portable electronic device, and an information management apparatus for storing both right information and information which corresponds to the portable electronic device and which indicates to whom a right belongs. By using a code unique to the portable electronic device to encrypt concert information as the right information to be offline-providable form, and providing a ticket code generated by the encryption so that it passes through an offline channel at least once, the distribution to each user of the encrypted information can be simplified.