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:
Sep. 22, 2015
Filed:
Feb. 24, 2009
Hoon Choi, Mountain View, CA (US);
Gyudong Kim, Sunnyvale, CA (US);
Ook Kim, Palo Alto, CA (US);
Alexander Peysakhovich, San Jose, CA (US);
Michael Schumacher, San Jose, CA (US);
Daeyun Shim, Saratoga, CA (US);
Hoon Choi, Mountain View, CA (US);
Gyudong Kim, Sunnyvale, CA (US);
Ook Kim, Palo Alto, CA (US);
James D. Lyle, Santa Clara, CA (US);
Alexander Peysakhovich, San Jose, CA (US);
Michael Schumacher, San Jose, CA (US);
Daeyun Shim, Saratoga, CA (US);
LATTICE SEMICONDUCTOR CORPORATION, Portland, OR (US);
Abstract
A method, apparatus and system for pre-authenticating ports is disclosed. In one embodiment, an active port facilitating communication of media content between a transmitting device and a receiving device is identified, while the active port are associated with a first High-Definition Content Protection (HDCP) engine. Then, inactive ports that are in idle mode serving as backup ports to the active port are identified, while the inactive ports are associated with a second HDCP engine. Pre-authentication of each of the inactive ports is performed so the pre-authenticated inactive ports can subsequently replace the active port if a port switch is performed.