Patent ID: 7167694

Claim:
A method for tuning multiple channels with multi-tuner satellite receiver circuitry on a single integrated circuit, comprising: providing at least two tuners on a single integrated circuit comprising first receiver circuitry and second receiver circuitry, the first and second receiver circuitry configured to operate at the same time; with the first receiver circuitry, receiving a first satellite signal spectrum including a plurality of transponder channels within a frequency range, each transponder channel including a plurality of program channels; receiving a selection signal identifying a first transponder channel to be tuned; mixing the first satellite signal spectrum with a first coarse-tune analog mixing signal to generate a first coarsely tuned signal spectrum; and digitally processing the first coarsely tuned signal spectrum to fine tune the first desired transponder channel and to produce digital baseband signals representing the first desired transponder channel; with the second receiver circuitry, receiving a second satellite signal spectrum including a plurality of transponder channels within a frequency range, each transponder channel including a plurality of program channels; receiving a selection signal identifying a second transponder channel to be tuned; mixing the second satellite signal spectrum with a second coarse-tune analog mixing signal to generate a second coarsely tuned signal spectrum; and digitally processing the second coarsely tuned signal spectrum to fine tune the second desired transponder channel and to produce digital baseband signals representing the second desired transponder channel; and concurrently providing the digital baseband signals for the first desired transponder channel and the digital baseband signals for the second desired transponder channel as outputs from the first and second receiver circuitry, wherein the digital processing step for the first and second receives each comprises using a wide-band analog-to-digital converter to convert the coarsely tuned signal spectrum to digital signals and using a tunable digital filter to tune the desired transponder channel.