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

Claim 7:
8. An ultrasonic transducing sensor apparatus compromising
a receive sensor;
at least one 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 waveforms via the membrane and provide a feedback signal based on a received 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) based on the feedback signal, and modify the drive voltage Vd(t) to minimize a closed loop weighted (α, β) sum of the energy of VRO(t) and the blind zone duration.