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:
May. 24, 2016
Filed:
Jul. 03, 2012
Applicants:
Takehiko Nakano, Kanagawa, JP;
Hisato Shima, Tokyo, JP;
Inventors:
Takehiko Nakano, Kanagawa, JP;
Hisato Shima, Tokyo, JP;
Assignee:
SONY CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/08 (2006.01); H04L 29/06 (2006.01); H04L 9/32 (2006.01); H04L 12/841 (2013.01);
U.S. Cl.
CPC ...
H04L 9/0838 (2013.01); H04L 9/32 (2013.01); H04L 63/06 (2013.01); H04L 63/08 (2013.01); H04L 47/283 (2013.01);
Abstract
A measurement to obtain an RTT to a receiving apparatus is performed by a relay apparatus that is disposed between a WAN and a home network and connects these two networks. That an RTT value is equal to or less than the threshold value is set as a content distribution condition from a transmitting apparatus, so that the same use environment as a system using current DLNA and DTCP-IP can be realized for content use in the home network. Thereby, unjust distribution of content is prevented while an authentication and key exchange procedure performed via an external network is allowed.