Television – Plural transmitter system considerations
Reexamination Certificate
2005-05-31
2005-05-31
Miller, John (Department: 2614)
Television
Plural transmitter system considerations
C348S423100, C348S425200, C348S614000, C348S607000, C348S518000, C348S729000, C375S346000, C375S240270, C455S504000, C455S512000
Reexamination Certificate
active
06900828
ABSTRACT:
In a digital broadcast communications system, a higher priority component and a lower priority component are broadcast from a transmitter to a receiver. Each of these components generates a main and a supplemental signal, and each supplemental signal is advanced in time with respect to the corresponding main signal. The main and supplemental signals for both the higher and lower priority components are combined into a single signal, which is broadcast to a receiver. In the receiver, the time advanced supplemental signals are stored in a buffer to time align them with their corresponding main signals. Both main signals are processed in the normal manner in the receiver, and are also monitored to detect a fading event. When a fading event is detected, the corresponding buffered supplemental signals are substituted for the faded main signals and normal processing continues.
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Cooper Jeffrey Allen
Knutson Paul Gothard
Ramaswamy Kumar
Desir Jean W.
Kurdyla Ronald H.
Laks Joseph J.
Miller John
Thomson Licensing S.A.
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