公开(公告)号：US12178134B2

公开(公告)日：2024-12-24

申请号：US17172564

申请日：2021-02-10

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： John Paul Lesso ,  Claire Motion

IPC: H10N30/80 ,  G01S7/527 ,  G01S15/931 ,  H10N30/30

Abstract: Circuitry for driving a transducer for an object detection system, the circuitry comprising drive circuitry configured to generate a drive waveform for the transducer, current monitor circuitry for monitoring a current through the transducer, and system identification circuitry. The system identification circuitry is configured to determine a characteristic of the transducer based on a first signal indicative of a drive voltage for the transducer and a second signal indicative of the current through the transducer. The circuitry is operative to adjust the drive waveform based on the determined characteristic of the transducer.

公开(公告)号：US12266961B2

公开(公告)日：2025-04-01

申请号：US17824687

申请日：2022-05-25

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： John Paul Lesso ,  Toru Ido ,  Claire Motion

IPC: H02J7/00 ,  G01N27/403 ,  G01R31/385 ,  H02J7/34

Abstract: Apparatus for delivering power from a battery node of a battery to an output node, the output node coupled to an analyte monitoring device, the apparatus comprising: a slow charging path between the battery node and the output node; a fast charging path parallel to the slow charging path, the fast charging path switchably coupled between the battery node and the output node; and control circuitry configured to: selectively couple the fast charging path between the battery node and the output node to allow faster transfer of charge between the battery node and the output node than the slow charging path.

公开(公告)号：US12099118B2

公开(公告)日：2024-09-24

申请号：US17582128

申请日：2022-01-24

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： John P. Lesso ,  Claire Motion

IPC: G01S15/52 ,  G01R19/00 ,  G01S7/527

CPC classification number: G01S15/523 ,  G01R19/0038 ,  G01S7/527

Abstract: Circuitry comprising excitation circuitry for supplying a transducer with an excitation signal to generate a detection signal and current monitor circuitry for monitoring current through the transducer.