System and method for terrestrial high-definition television reception
AssigneeBroadcom Corporation
InventorsRandall Perlow, Charles Brooks, Steven Jaffe, Tianmin Liu
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Abstract
An adaptive receiver is disclosed for optimally receiving and processing signals. The receiver utilizes one or more memory blocks to store groups of incoming symbols. The groups of symbols are processed by a channel estimation subsystem to determine channel characteristics. The receiver determines the appropriate demodulation and decoding strategy to implement based on the determined channel characteristics. The receiver includes a plurality of demodulation and decoding schemes, one of which is selected based on the results of a channel estimation analysis.
Claims26
A receiver for processing signals received over a communication channel comprising:
- a plurality of demodulation subsystems;
- and
- circuitry that determines at least one characteristic of at least one of the receiver and the channel, and selects one of the plurality of demodulation subsystems for processing received symbols based on the at least one characteristic determined.
A receiver for processing signals received over a communication channel comprising:
- a first equalizer system that operates on received symbols on a symbol-by-symbol basis;
- a second equalizer system that operates on received symbols on a block of symbols basis;
- and
- circuitry that determines at least one characteristic of at least one of the receiver and the channel, and selects one of the first equalizer system or the second equalizer system based on the at least one characteristic determined.
A method of processing signals received over a communication channel comprising:
- receiving a plurality of symbols by a receiver;
- determining at least one characteristic of at least one of the communication channel and the receiver using at least a portion of the plurality of symbols received;
- and
- selecting one of a plurality of demodulation subsystems based on the determining.
A method of processing signals received over a communication channel comprising:
- receiving a plurality of symbols by a receiver;
- performing at least two demodulation strategies on the symbols received;
- determining at least one characteristic of at least one of the communication channel and the receiver using at least a portion of the plurality of symbols received;
- determining a best demodulation strategy based on the at least one characteristic;
- and
- selecting the best demodulation strategy for operation.
Dependencies are inferred from the claim text.