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US 8,078,129 B2Granted
Systems and method for a highly integrated multi-mode tuner
AssigneeNXP B.V.
InventorsMats Lindstrom, Abbolreza Shafie
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Abstract
A method and apparatus for a tuner for adjusting the receiver bandwidth based on adjacent channel interference and group delay distortion.
Claims5
A method for adjusting the bandwidth of a receiver, comprising:
- determining whether a signal to noise ratio for a signal output by the receiver is within a desired operating range;
- when it is determined that the signal to noise ratio is not within a desired operating range, determining whether adjacent channel interference is present in the signal;
- narrowing the bandwidth of the receiver when it is determined that adjacent channel interference is present;
- when it is determined that adjacent channel interference is not present, determining whether there is group delay distortion;
- and
- increasing the bandwidth of the receiver when it is determined that the group delay distortion is present.
3 more elements
A tuner including a receiver and a processor coupled with the receiver, the receiver comprising:
- an image rejection block, the processor configured to:
- determine whether a signal to noise ratio for a signal output by the receiver is within a desired operating range;
- when it is determined that the signal to noise ratio is not within a desired operating range, determine whether adjacent channel interference is present in the signal;
- control the image rejection block so as to narrow the bandwidth of the receiver when it is determined that adjacent channel interference is present;
- when it is determined that adjacent channel interference is not present, determine whether there is group delay distortion;
- and
- control the image rejection block so as to increase the bandwidth of the receiver when it is determined that the group delay distortion is present.
4 more elements
Dependencies are inferred from the claim text.