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, 2011
Filed:
Jan. 25, 2008
Kumar Mahesh, San Ramon, CA (US);
Karthik Krishnaswami, San Jose, CA (US);
Karen Wang, Palo Alto, CA (US);
Jeffrey M. Gilbert, Palo Alto, CA (US);
Chuen-shen (Bernard) Shung, San Jose, CA (US);
Chih-yuan Hsieh, San Jose, CA (US);
Kyeong Ryu, Danville, CA (US);
Prakash Kamath, Santa Clara, CA (US);
Kumar Mahesh, San Ramon, CA (US);
Karthik Krishnaswami, San Jose, CA (US);
Karen Wang, Palo Alto, CA (US);
Jeffrey M. Gilbert, Palo Alto, CA (US);
Chuen-Shen (Bernard) Shung, San Jose, CA (US);
Chih-Yuan Hsieh, San Jose, CA (US);
Kyeong Ryu, Danville, CA (US);
Prakash Kamath, Santa Clara, CA (US);
Sibeam, Inc., Sunnyvale, CA (US);
Abstract
A wireless content protection system includes a coordinator, a source device, and a sink device. The coordinator includes a scheduler. The source and sink devices each have a content protection manager. One of the content protection manager allocates and releases bandwidth via the coordinator for a test message and a response message for a round-trip time computation. The test message is transmitted in a source-to-sink channel time block. The response message is transmitted in a sink-to-source channel time block. The round-trip time is the period between the end of the source-to-sink channel time block and the beginning of the sink-to-source channel time block.