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. 26, 2006
Filed:
Sep. 29, 2000
David A. Wyatt, San Jose, CA (US);
Robert W. Faber, Hillsboro, OR (US);
David A. Lee, Beaverton, OR (US);
Brendan Traw, Portland, OR (US);
David A. Wyatt, San Jose, CA (US);
Robert W. Faber, Hillsboro, OR (US);
David A. Lee, Beaverton, OR (US);
Brendan Traw, Portland, OR (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
A method and apparatus for determining the scope of a content domain for ensuring that a content stream is not re-routed to an unauthorized display device. The apparatus includes a content source device, which supports multiple display outputs coupled to one or more content sink devices. A content source application generates and provides a content stream to a hardware interface which securely transmits the content stream to a protected content sink device using a content protection protocol. The content source application utilizes certain status information to ensure that the content stream is not re-routed to an unprotected or unapproved content sink device. The source application requests the updated session identification code from the transmitter/codec unit using the content protection protocol which is compared against the expected session identification code to ensure that the content display stream has not been re-routed to an unprotected content sink device.