High Definition Television Signal Compatibility Verification
4 Assignments
0 Petitions
Accused Products
Abstract
A system for providing television (TV) service including high definition television (HDTV) service, and for providing verification that a subscriber has connected an HDTV to the system includes a TV service provider headend and a set top box (STB). The HDTV may have an HDTV digital video interface (DVI) interconnect. The STB may be electrically coupled to the headend and have an STB DVI interconnect. When the HDTV DVI interconnect is initially electrically coupled to the STB DVI interconnect, the HDTV generally presents a data signal to the STB and the STB generally presents the data signal to the headend.
12 Citations
21 Claims
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1-20. -20. (canceled)
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21. A method, comprising:
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receiving, by a video receiving device, a signal from a video viewing device coupled to the video receiving device; determining, by the video receiving device, based on the signal, whether the video viewing device is compatible with a first television signal format or a second television signal format, the second television signal format being of a higher video resolution than the first television signal format; and sending to a network, by the video receiving device in response to determining that the video viewing device is compatible with the second television signal format, data indicating that the video viewing device is compatible with the second television signal format.
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Specification