Indicator circuit and calibration method for calibrating non-linear deviation of power detection circuit
AssigneeRealtek Semiconductor Corp.
InventorsSheng-Lung Cheng, Ling Lee
Life of this patent
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Abstract
An indicator circuit includes a power detection circuit and a codeword mapping circuit. The power detection circuit is coupled to a signal output terminal of a transmitter circuit, and is arranged to detect a power of an output signal to generate a detection result. The codeword mapping circuit is arranged to generate an indicator codeword according to the detection result, wherein the codeword mapping circuit converts the detection result according to a plurality of non-linear bases to correspondingly generate a plurality of converted detection results, and combines the plurality of converted detection results to generate the indicator codeword.
Claims14
An indicator circuit, comprising:
- a power detection circuit, coupled to a signal output terminal of a transmitter circuit, and arranged to detect a power of an output signal to generate a detection result;
- and
- a codeword mapping circuit, arranged to generate an indicator codeword according to the detection result, wherein the codeword mapping circuit converts the detection result according to a plurality of non-linear bases to correspondingly generate a plurality of converted detection results, and combines the plurality of converted detection results to generate the indicator codeword.
A calibration method, arranged to calibrate non-linear deviation of a power detection circuit, comprising:
- detecting a power of an output signal of a transmitter circuit to generate a detection result;
- converting the detection result according to a plurality of non-linear bases to correspondingly generate a plurality of converted detection results;
- and
- combining the plurality of converted detection results to generate an indicator codeword.
Dependencies are inferred from the claim text.