Patent ID: 11863133
Assignee: BFLY OPERATIONS, INC
Field: Medical technology (Instruments)
Classification: CPC H  A  G | IPC A  G  H

Claim 14:
15. A method, comprising:
acquiring an ultrasound signal with an ultrasound sensor during an acquisition period and outputting, from the ultrasound sensor, an analog electrical signal representing the ultrasound signal; and
amplifying the analog electrical signal with a variable current trans-impedance amplifier (TIA) having a first stage, a last stage, a variable impedance circuit coupled between an output terminal of the variable current TIA and a node representing an input to the last stage, and a variable feedback impedance circuit coupled between the output terminal of the variable current TIA and a node representing an input to the first stage, wherein amplifying the analog electrical signal comprises varying a feedback impedance of the variable impedance circuit during the acquisition period.