High-bandwidth digital content protection during rapid channel changing
AssigneePace Incorporated
InventorLinden deCarmo
Life of this patent
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Abstract
A method and apparatus are disclosed for providing High-Bandwidth Digital Content Protection during a channel change process. The method and apparatus include detection of High-Bandwidth Digital Content Protection capability on a receiver during an interface event. High-Bandwidth Digital Content Protection authentication is delayed for a predetermined time period to allow the channel change process to stabilize. The invention reduces a performance penalty associated with the channel change process.
Claims18
A method for enabling a security protocol for transmission from a transmitter to a receiver during a channel change process, comprising:
- allowing the transmitter to transmit data to the receiver so as to detect whether the receiver supports the security protocol;
- upon communication from the receiver to the transmitter that the receiver supports the security protocol, permitting a channel change process to proceed;
- permitting the transmitter to delay an authentication of the communication from the receiver under the security protocol until the channel change process is completed;
- and
- enabling the authentication after a predetermined lapse of time.
A system for providing a security protocol during rapid channel changing utilizing a Digital Video Interface event as a starting point, the system comprising:
- a detector for detecting whether a display supports the security protocol;
- and
- a controller in communication with the detector for:
- (i) permitting a channel change process upon detection that the display supports the security protocol;
- (ii) delaying an authentication under the security protocol until the channel change process is completed;
- and
- (iii) enabling the authentication after a predetermined lapse of time.
Dependencies are inferred from the claim text.