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. 03, 2015
Filed:
Apr. 26, 2007
Masao Nonaka, Osaka, JP;
Toshihisa Nakano, Osaka, JP;
Yuichi Futa, Osaka, JP;
Motoji Ohmori, Osaka, JP;
Kazukuni Kobara, Chiba, JP;
Ryo Nojima, Tokyo, JP;
Hideki Imai, Kanagawa, JP;
Masao Nonaka, Osaka, JP;
Toshihisa Nakano, Osaka, JP;
Yuichi Futa, Osaka, JP;
Motoji Ohmori, Osaka, JP;
Kazukuni Kobara, Chiba, JP;
Ryo Nojima, Tokyo, JP;
Hideki Imai, Kanagawa, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A transmission device including: copy unit that extracts part or all of partial contents, as tracking information, from a content, and copies the extracted tracking information, thereby generating pieces of tracking information; candidate information obtaining unit that obtains pieces of candidate information respectively corresponding to the pieces of tracking information; evidence information obtaining unit that obtains evidence information generated dependently on a piece of candidate information selected by the reception device from among the pieces of candidate information; hash generating unit that generates hash values respectively in accordance with the pieces of candidate information; embed unit that embeds the hash values respectively into the pieces of tracking information, and embeds the evidence information into each piece of tracking information; and transmit unit that transmits each piece of tracking information in which a hash value and the evidence information have been embedded.