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. 17, 2015
Filed:
Jul. 17, 2014
Applicant:
Rpx Clearinghouse Llc, San Francisco, CA (US);
Inventors:
Bradley Cain, Cambridge, MA (US);
Thomas P. Hardjono, Winchester, MA (US);
Assignee:
RPX CLEARINGHOUSE LLC, San Francisco, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 21/438 (2011.01); H04N 21/441 (2011.01); H04N 21/258 (2011.01); H04N 21/6405 (2011.01); H04N 21/436 (2011.01); H04N 21/462 (2011.01); H04L 12/18 (2006.01);
U.S. Cl.
CPC ...
H04N 21/25816 (2013.01); H04L 12/185 (2013.01); H04N 21/4384 (2013.01); H04N 21/43615 (2013.01); H04N 21/4622 (2013.01); H04N 21/6405 (2013.01);
Abstract
A system, device, and method for receiver access control in an interne television system uses a push mechanism to distribute access control information from a distribution device to an access device. The access device uses the access control information to make receiver access control decisions for a subsequently received request from a host to join a television channel multicast group.