Patent ID: 11950956
Assignee: RFNAV INC.
Field: Measurement (Instruments)
Classification: CPC A  B  G  H | IPC A  B  G  H

Claim 19:
20. A method of operating an ultrasonic transducing sensor apparatus comprising:
providing an ultrasonic transducing sensor apparatus including
a receive sensor,
at least on PMUT mechanically coupled to, and electrically isolated from, the receive sensor via a common flexible membrane, the at least one PMUT to transmit an acoustic waveform via the membrane in response to a drive voltage Vd(t) and receive a waveform via the membrane, and the receive sensor to receive waveform, VRO(t), and
at least one processor configured to provide the drive voltage Vd(t) to the at least one PMUT and modify the drive voltage Vd (t);

receiving, via the receive sensor, the received waveform, VRO(t);
providing the feedback signal based on the received waveform, VRO(t) to modify the drive voltage Vd(t) of the at least one PMUT; and
modifying, via the at least one processor, the drive voltage Vd(t) based on the feedback signal that minimizes the sum of the square of the difference between the received waveform VRO(t), and a desired receive waveform, VROD(t).