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US 2019/0336111 A1Published application
Analog-to-digital drive circuitry having built-in time gain compensation functionality for ultrasound applications
AssigneeButterfly Network, Inc.
InventorsKailiang Chen, Keith G. Fife
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Abstract
A time gain compensation (TGC) circuit for an ultrasound device includes a first amplifier having an integrating capacitor and a control circuit configured to generate a TGC control signal that controls an integration time of the integrating capacitor, thereby controlling a gain of the first amplifier. The integration time is an amount of time an input signal is coupled to the first amplifier before the input signal is isolated from the first amplifier.
Claims24
An ultrasound system, comprising:
- an analog-to-digital converter (ADC) driver circuit configured to provide time gain compensation (TGC) and including a first amplifier having an integrating capacitor in a feedback configuration;
- and
- a control circuit configured to generate a TGC control signal that controls an integration time of the integrating capacitor, the integration time comprising an amount of time that an input signal is coupled to the first amplifier before the input signal is isolated from the first amplifier.
A method of operating an ultrasound system, the method comprising:
- receiving electrical signals from an ultrasonic transducer;
- coupling the electrical signals to an input of an analog circuit block;
- and
- coupling an output of the analog circuit block to an analog-to-digital converter (ADC), the analog circuit block further comprising:
- an ADC driver circuit configured to provide time gain compensation (TGC) and including a first amplifier having an integrating capacitor configured in a feedback configuration;
- and
- a control circuit configured to generate a TGC control signal that controls an integration time of the integrating capacitor, the integration time comprising an amount of time that an input signal is coupled to the first amplifier before the input signal is isolated from the first amplifier.
4 more elements
Dependencies are inferred from the claim text.