Systems and methods for saving power in a digital broadcast receiver
First Claim
Patent Images
1. A system for power conservation in a receiver device, comprising:
- a tuner configured to receive a transmitted signal of modulated information intended for the receiver device, wherein the modulated information includes symbols;
an analog-to-digital converter (ADC) that samples the received transmitted signal provided by the tuner; and
digital signal processing hardware (DSPHW) that;
extracts soft bit information from the sampled signal provided by at least one analog-to-digital converter,determines if a symbol included in the sampled signal belongs to an erasure interval, wherein the erasure interval covers a set of symbols for which the soft bit information is replaced with information that is not provided by an analog-to-digital converter,generates a control signal to configure a receiver device component to conserve power based on the determination, andrecovers the modulated information based on the extracted soft bit information in spite of an occurrence of an erasure interval.
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Abstract
Systems and methods for conserving power in a receiver device are provided. In exemplary embodiments, a receiver device comprises a tuner configured to receive a transmitted signal, at least one analog-to-digital converter (ADC), and a digital signal processing hardware comprising a control logic. The exemplary control logic is configured to determine if a symbol within the transmitted signal belongs to an erasure interval, and generate a control signal to configure a receiver device component to conserve power based on the determination.
64 Citations
17 Claims
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1. A system for power conservation in a receiver device, comprising:
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a tuner configured to receive a transmitted signal of modulated information intended for the receiver device, wherein the modulated information includes symbols; an analog-to-digital converter (ADC) that samples the received transmitted signal provided by the tuner; and digital signal processing hardware (DSPHW) that; extracts soft bit information from the sampled signal provided by at least one analog-to-digital converter, determines if a symbol included in the sampled signal belongs to an erasure interval, wherein the erasure interval covers a set of symbols for which the soft bit information is replaced with information that is not provided by an analog-to-digital converter, generates a control signal to configure a receiver device component to conserve power based on the determination, and recovers the modulated information based on the extracted soft bit information in spite of an occurrence of an erasure interval. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for power conservation in a receiver device, comprising:
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receiving a transmitted signal of modulated information intended for the receiver device, wherein the modulated information includes symbols; extracting soft bit information from the transmitted signal; determining if a symbol within the transmitted signal belongs to an erasure interval, wherein the erasure interval covers a set of symbols for which the soft bit information is replaced with other information; generating a control signal to configure a receiver device component to conserve power based on the determination; and recovering the modulated information based on the extracted soft bit information in spite of an occurrence of an erasure interval. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15)
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16. A system for power conservation in a receiver device, comprising:
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means for receiving a transmitted signal of modulated information intended for the receiver device, wherein the modulated information includes symbols; means for extracting soft bit information from the transmitted signal; means for determining if a symbol within the transmitted signal belongs to an erasure interval, wherein the erasure interval covers a set of symbols for which the soft bit information is replaced with other information; means for generating a control signal to configure a receiver device component to conserve power based on the determination; means for recovering the modulated information based on the extracted soft bit information in spite of an occurrence of an erasure interval. - View Dependent Claims (17)
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Specification