Interactive video distribution systems – Access control or blocking
Reexamination Certificate
2004-06-30
2009-06-09
Miller, John W. (Department: 2421)
Interactive video distribution systems
Access control or blocking
C725S031000, C725S131000, C725S133000, C380S210000, C380S211000, C713S320000, C713S321000
Reexamination Certificate
active
07546618
ABSTRACT:
A conditional access device is provided. The conditional access device typically includes conditional access decryption, interface, timing and control logic. The conditional access decryption logic decrypts an incoming signal for use in a consumer electronics device in accordance with previously received entitlement management messages. The interface logic receives a control signal including an entitlement management message window from a headend control system through a receiver in the consumer electronics device. The timing logic asserts an awake signal responsive to the entitlement management message window becoming active. The control logic sends a request to the consumer electronic device to activate a receiver coupled to the headend control system in expectation of receiving an entitlement management message via the control signal in response to assertion of the awake signal. The control logic also communicates the entitlement management message to the conditional access decryption logic. Other systems and method are also provided.
REFERENCES:
patent: 6373904 (2002-04-01), Sakamoto et al.
patent: 6430290 (2002-08-01), Van Willigen et al.
patent: 6584199 (2003-06-01), Kim et al.
patent: 2004/0252833 (2004-12-01), Milner
patent: 2005/0084106 (2005-04-01), Venema et al.
Energy Star Qualifed Set-Top Boxes—Energy Efficiency Specifications U.S. Enviromental Protection Agency Sep. 6, 2000.
Society of Cable Telecommunicaitons Engineers, Inc.—Mar. 8, 1999 8 Page—SCTE DVS/223—Standby Power Management control for the Point of Deployment Module.
Society of Cable Telecommunications Engineers, Inc.—SCTE 40 2001 26 Page—Digital Cable Network Interface Standard SCTE Exton, PA U.S.
Society of Cable Telecommunications Engineers, Inc—SCTE 28, 2003 225 Page—HOST-POD Interface Standard SCTE Exton, PA. U.S.
Society of Cable Telecommunications Engineers, Inc.—SCTE 41 2003 74 Page—POD Copy Protection System SCTE Exton, PA. U.S.
Merchant & Gould
Miller John W.
Schnurr John
Scientific-Atlanta, Inc.
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