Systems and methods for dynamically controlling a tuner
First Claim
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1. A system for power conservation in a receiver device, the system comprising:
- a tuner configured to receive a terrestrial broadcast signal;
digital signal processing hardware that;
measures signal-to-noise ratio of a demodulated signal of interest, wherein the demodulated signal of interest is based on the terrestrial signal, anddetermines an average power of an in-band signal within the demodulated signal of interest; and
tuner management logic executable to generate a control signal that independently switches a plurality of components within the tuner between a plurality of modes to conserve power, wherein the control signal is based on a comparison of the average power of the in-band signal within the demodulated signal of interest and the measured signal-to-noise ratio of the demodulated signal of interest.
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Abstract
Systems and methods for dynamically controlling a tuner are provided. In exemplary embodiments, the tuner receives control signals generated by digital signal processing hardware (DSPHW). These control signals control noise figure and linearity characteristic of components within the tuner by adjusting a current supply to those components, according to a desired configuration determined by the DSPHW. As a result, the DSPHW can optimize power consumption of the tuner while allowing for sufficient tuner performance for reliable demodulation of received signals.
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11 Claims
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1. A system for power conservation in a receiver device, the system comprising:
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a tuner configured to receive a terrestrial broadcast signal; digital signal processing hardware that; measures signal-to-noise ratio of a demodulated signal of interest, wherein the demodulated signal of interest is based on the terrestrial signal, and determines an average power of an in-band signal within the demodulated signal of interest; and tuner management logic executable to generate a control signal that independently switches a plurality of components within the tuner between a plurality of modes to conserve power, wherein the control signal is based on a comparison of the average power of the in-band signal within the demodulated signal of interest and the measured signal-to-noise ratio of the demodulated signal of interest. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system for power conservation in a receiver device, comprising:
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a tuner configured to; receive a NRSC-5 standard signal, and measure power at several points along a path of the received NRSC-5 standard signal; digital signal processing hardware that; measures signal-to-noise ratio of the received NRSC-5 standard signal, and determines an average power of a desired in-band signal within the received NRSC-5 standard signal; and tuner management logic executable to generate a control signal that independently switches a plurality of components within the tuner between a plurality of modes to conserve power, wherein the control signal is based on a comparison of the average power of the desired in-band signal within the received NRSC-5 standard signal and the measured signal-to-noise ratio of the received NRSC-5 standard signal.
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Specification