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US 2019/0342129 A1Published application
Predictive Decision Feedback Equalizer
AssigneeMaxLinear, Inc.
InventorsPrasun Kali Bhattacharyya, Joseph Palackal Mathew
Life of this patent
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Abstract
A digital signal processing circuit comprises a first equalizer circuit and a second equalizer circuit. An output of the second equalizer is used as feedback to generate an equalized signal. The output of the second equalizer circuit is based on a plurality of postcursor values and a plurality of precursor values, where the precursor values are generated based on an output of the first DFE circuit, and the postcursor values are generated independently of the output of the first DFE.
Claims20
A system comprising:
- a digital signal processing circuit comprising a first equalizer circuit and a second equalizer circuit, wherein:
- an output of the second equalizer circuit is used as feedback to generate an equalized signal;
- the output of the second equalizer circuit is based on a plurality of postcursor values and a plurality of precursor values;
- the precursor values are generated based on an output of the first equalizer circuit;
- and
- the postcursor values are generated independently of the output of the first equalizer circuit.
3 more elements
A method comprising:
- in a digital signal processing circuit comprising a first equalizer circuit and a second equalizer circuit:
- generating an equalized signal based on feedback of an output of the second equalizer, wherein the output of the second equalizer circuit is based on a plurality of postcursor values and a plurality of precursor values;
- generating the precursor values based on an output of the first equalizer circuit;
- and
- generating the postcursor values independently of the output of the first equalizer circuit.
2 more elements
Dependencies are inferred from the claim text.