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US 12,602,068 B2Granted
Signal processing device and operating method thereof
AssigneeRealtek Semiconductor Corp.
InventorsZhen Cheng Zhang, Chih-Lung Chen
Life of this patent
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AssigneeRealtek Semiconductor Corp.
InventorsZhen Cheng Zhang, Chih-Lung Chen
Estimating the term…
A signal processing device includes a circuit system, in which the circuit system includes an amplifier, a temperature compensating circuit and a computing circuit. The amplifier is configured to amplify an input signal according to a temperature compensating current, in order to generate an output signal. A direct current offset of the output signal is related to the temperature compensating current. The temperature compensating circuit includes a detecting resistor and a comparator. The detecting resistor is configured to generate a detecting voltage according to the temperature compensating current. The comparator is configured to compare the detecting voltage with a reference voltage to generate a comparison signal. The computing circuit is configured to adjust the temperature compensating current according to the comparison signal so as to make the detecting voltage approximate to the reference voltage.
A signal processing device, comprising a circuit system, wherein the circuit system comprises:
An operating method applicable to a signal processing device, wherein the signal processing device comprises a circuit system, and the circuit system comprises an amplifier, a temperature compensating circuit and a computing circuit, and the operating method comprises:
Dependencies are inferred from the claim text.