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:
Nov. 23, 2010
Filed:
Jul. 19, 2006
Akimichi Ogawa, Kanagawa, JP;
Kazuhiro Shitama, Tokyo, JP;
Seiji Miyama, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
Disclosed herein is a content distribution system including: a content distribution server; a sender terminal; and a receiver terminal; wherein the content distribution server including a communication block; a recording block; a content management block; a content encryption block; and a key management block; wherein the sender terminal including a communication block; a terminal detection block; a recording block; and an extraction block; wherein the receiver terminal including a terminal detection block; a recording block; a decryption block; and a content reproduction block; wherein, if the sender terminal is located inside a communicable range in which data can be transmitted and received with the receiver terminal, the sender terminal distributes the content and the receiver terminal, if located inside the communicable range, reproduces the decrypted content.