Interactive video distribution systems – Video distribution system components – Receiver
Reexamination Certificate
2006-08-29
2006-08-29
Kelley, Chris (Department: 2623)
Interactive video distribution systems
Video distribution system components
Receiver
C725S131000, C725S139000
Reexamination Certificate
active
07100194
ABSTRACT:
A set-top unit for processing a cable signal from a cable television system for use on a television, where the set-top unit includes one or more programming tuners in addition to a control tuner, can reduce the time required to locate the cable system's control channel by having all available tuners, the control tuner and programming tuner(s), search the band of possible frequencies of the control channel simultaneously. The band of frequencies is divided among the available tuners in the set-top unit, with each tuner searching an assigned portion of the band for a control channel. With multiple tuners searching for the control channel(s), the time required to acquire the control channel is minimized.
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Kelley Chris
Nichols Steven L.
Rader & Fishman & Grauer, PLLC
Sony Corporation
Sony Electronics Inc.
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