Receiver filtering
AssigneeMaxLinear, Inc.
InventorYouZhe Fan
Life of this patent
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Abstract
A receiver may include a first filter configured to generate a first estimation of a symbol of a received signal and a second filter configured to generate a second estimation of the symbol of the received signal. The receiver may also include a decoder configured to decode the symbol using one of the first estimation and the second estimation and a decision circuit configured to select one of the first estimation and the second estimation to provide to the decoder for decoding of the symbol based on a comparison of the first estimation to an estimation threshold.
Claims18
A receiver, comprising:
- an equalizer;
- a decision circuit configured to identify an error probability of the equalizer with respect to a particular signal;
- and
- a selection circuit to select the equalizer in response to a determination that the error probability of the equalizer with respect to the particular signal is below a threshold error value, the equalizer configured to process the particular signal responsive to the determination that the error probability of the equalizer with respect to the particular signal is below the threshold error value, wherein the threshold error value is based on an offset magnitude, wherein the offset magnitude is determined based on a probability density function of the error probability of the equalizer.
A method to process a particular signal, the method comprising:
- identifying an error probability of first equalizer with respect to the particular signal;
- determining whether the error probability of the first equalizer with respect to the particular signal is below a threshold error value;
- and
- selecting either the equalizer or a second equalizer configured to process the particular signal, wherein the first equalizer is selected in response to a determination that the error probability of the first equalizer with respect to the particular signal is below a threshold error value, wherein the second equalizer is selected in response to (a) the first error value for the first equalizer with respect to the particular signal being at or above the threshold error value, or (b) the second equalizer having a second error value.
A receiver, comprising:
- a first equalizer;
- a second equalizer;
- a decision circuit configured to identify a first error value for the first equalizer with respect to a particular signal;
- and
- a selection circuit to select the second equalizer in response to (a) the first error value for the first equalizer with respect to the particular signal being at or above the threshold error value, or (b) the second equalizer having a second error value.
Dependencies are inferred from the claim text.