Abstract: A method for transmitting content (12) via a digital video interface (15) using a high-bandwidth digital content protection system (50). The content (12) has a first format in a first state, a second format in a second state, and vertical blanking intervals associated therewith. In the first state, the method includes: authenticating (302) that the receiver (25) is licensed to receive the content, signaling (304) that the content will be encrypted, and transmitting (306) the encrypted content in the first format. A transition of the content from the first format to the second format is detected (308), and the encrypted content continues (310) to be transmitted in the first format.

Abstract: A method (200) for verifying a video format supported by a display device (25). The display device (25) is adapted to receive a television signal from a video source (10) via a video interface (15). The method includes: receiving (202) a data structure (75) provided by the display device (25), the data structure (75) specifying a plurality of timing parameters associated with a supported video format; providing (204) a plurality of predetermined value ranges, each of the plurality of predetermined value ranges corresponding to one of the plurality of timing parameters; separating (206) the data structure into a plurality of portions, each of the plurality of portions corresponding to one of the plurality of timing parameters; comparing (208) at least some of the plurality of portions with at least some of the plurality of predetermined value ranges; and based on the comparisons, determining whether the supported video format is verified.

Abstract: A method for transmitting content (12) via a digital video interface (15) using a high-bandwidth digital content protection system (50). The content (12) has a first format in a first state, a second format in a second state, and vertical blanking intervals associated therewith. In the first state, the method includes: authenticating (302) that the receiver (25) is licensed to receive the content, signaling (304) that the content will be encrypted, and transmitting (306) the encrypted content in the first format. A transition of the content from the first format to the second format is detected (308), and the encrypted content continues (310) to be transmtitedtransmitted in the first format.