Interactive video distribution systems – Access control or blocking – Of specific channel
Reexamination Certificate
2006-10-24
2006-10-24
Kelley, Chris (Department: 2623)
Interactive video distribution systems
Access control or blocking
Of specific channel
C725S025000, C725S135000, C348S468000
Reexamination Certificate
active
07127733
ABSTRACT:
The present invention relates generally to an apparatus for bi-directional communications of voice, data, and alarms, and simultaneous transmission of video signals over a single cable such as coax. In more particular, it applies to a communications system that utilizes coax-type cabling to offer computer related in-room guest services such as on-television screen display of their bills, etc. The instant invention utilizes a digital communications protocol, preferably PCM, to fit a plurality of general purpose communications channels within conventional broadcast television frequencies. These communication channels might variously be used to carry telephone voice data, thereby obviating the need for a separate phone network, or, more generally, they might be used to transport any sort of digital data (e.g., room billing information, outgoing faxes, etc.) The instant invention also provides a means for directing broadcast video information to specific rooms within the structure. Finally, the instant invention also accommodates the remote generation of signals/alarms and their detection and processing in a central facility.
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Brown Reuben M.
Fellers Snider Blankenship Bailey & Tippens, P.C.
Kelley Chris
Rice Ingenieria S.A. De C.V.
Watt Terry L.
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