Circuitry for and Methods of Gain Control
AssigneeCirrus Logic International Semiconductor Ltd.
InventorsAndrew J. HOWLETT, Michael CHANDLER-PAGE, Lea S. GEORGIEVA
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Abstract
Signal processing circuitry configured to receive an input signal and to output a processed output signal, wherein the signal processing circuitry is configured to: receive an indication of a temporal location of a transient in the input signal; and provide, in the processed output signal, a masking signal bridging the temporal location of the transient to mask the transient.
Claims31
Signal processing circuitry configured to receive an input signal and to output a processed output signal, wherein the signal processing circuitry is configured to:
- receive an indication of a temporal location of a transient in the input signal;
- and
- provide, in the processed output signal, a masking signal bridging the temporal location of the transient to mask the transient.
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An integrated circuit (IC), comprising:
- zero crossing detector circuitry configured to detect a zero-crossing event in an analog input signal and output a control signal to analog gain circuitry;
- an analog-to-digital converter (ADC) for converting an amplified analog input signal amplified by the analog gain circuitry to a digital output signal;
- digital gain circuitry configured to apply gain to the digital output signal;
- and
- masking circuitry configured to provide, in the digital output signal a masking signal, the masking signal temporally aligned with a transient in the input signal.
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Dependencies are inferred from the claim text.