公开(公告)号：US11016572B2

公开(公告)日：2021-05-25

申请号：US16875006

申请日：2020-05-15

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Srdjan Marijanovic ,  Drew Kinney ,  Luke Lapointe ,  Siddharth Maru ,  Tejasvi Das ,  Anthony S. Doy ,  Zhong You

IPC: G06F3/044 ,  G06F3/01 ,  G06F3/041 ,  G06F3/045 ,  G01D5/20 ,  G01D5/243

Abstract: A system may include a tactile actuator for providing tactile feedback and a resonant phase sensing system. The resonant phase sensing system may include a resistive-inductive-capacitive sensor and a measurement circuit communicatively coupled to the resistive-inductive-capacitive sensor and the tactile actuator. The resistive-inductive-capacitive sensor may be configured to measure phase information associated with the resistive-inductive-capacitive sensor, based on the phase information, detect an indication of human interaction with the system proximate to the resistive-inductive-capacitive sensor, and trigger the tactile actuator to generate tactile feedback responsive to detecting the indication of human interaction.

公开(公告)号：US11204670B2

公开(公告)日：2021-12-21

申请号：US17142484

申请日：2021-01-06

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Siddharth Maru ,  Tejasvi Das ,  Luke LaPointe ,  Srdjan Marijanovic ,  Zhong You ,  Drew Kinney ,  Anthony S. Doy ,  Eric J. King

IPC: G06F3/041 ,  G06F3/044 ,  G06F3/045 ,  G01D5/243 ,  G01D5/20

Abstract: A system may include a resistive-inductive-capacitive sensor, a measurement circuit communicatively coupled to the resistive-inductive-capacitive sensor and configured to at a plurality of periodic intervals, measure phase information associated with the resistive-inductive-capacitive sensor and based on the phase information, determine a displacement of a mechanical member relative to the resistive-inductive-capacitive sensor. The system may also include a driver configured to drive the resistive-inductive-capacitive sensor at a driving frequency and a driving amplitude, wherein at least one of the driving frequency and the driving amplitude varies among the plurality of periodic intervals.

公开(公告)号：US10908200B2

公开(公告)日：2021-02-02

申请号：US16267079

申请日：2019-02-04

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Zhong You ,  Siddharth Maru ,  Tejasvi Das ,  Luke Lapointe ,  Eric J. King ,  Anthony S. Doy ,  Srdjan Marjianovic ,  Drew Kinney ,  Matthew Beardsworth ,  Emmanuel Marchais

IPC: G01R27/26 ,  G01R27/02 ,  G01D5/20 ,  G01D5/243 ,  G01R27/28 ,  G01R31/26 ,  G01R31/64 ,  G01R17/16 ,  G01R21/07

Abstract: A system may include a resistive-inductive-capacitive sensor, a driver configured to drive the resistive-inductive-capacitive sensor at a driving frequency, and a measurement circuit communicatively coupled to the resistive-inductive-capacitive sensor and configured to measure phase information associated with the resistive-inductive-capacitive sensor and based on the phase information, determine a displacement of a mechanical member relative to the resistive-inductive-capacitive sensor, wherein the displacement of the mechanical member causes a change in an impedance of the resistive-inductive-capacitive sensor.

公开(公告)号：US10942610B2

公开(公告)日：2021-03-09

申请号：US16831323

申请日：2020-03-26

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Siddharth Maru ,  Tejasvi Das ,  Luke Lapointe ,  Srdjan Marijanovic ,  Zhong You ,  Drew Kinney ,  Anthony S. Doy ,  Eric J. King

IPC: G06F3/044 ,  G06F3/041 ,  G06F3/045 ,  G01D5/243 ,  G01D5/20

Abstract: A system may include a resistive-inductive-capacitive sensor, a measurement circuit communicatively coupled to the resistive-inductive-capacitive sensor and configured to at a plurality of periodic intervals, measure phase information associated with the resistive-inductive-capacitive sensor and based on the phase information, determine a displacement of a mechanical member relative to the resistive-inductive-capacitive sensor. The system may also include a driver configured to drive the resistive-inductive-capacitive sensor at a driving frequency and a driving amplitude, wherein at least one of the driving frequency and the driving amplitude varies among the plurality of periodic intervals.

公开(公告)号：US10725549B2

公开(公告)日：2020-07-28

申请号：US16294347

申请日：2019-03-06

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Srdjan Marijanovic ,  Drew Kinney ,  Luke Lapointe ,  Siddharth Maru ,  Tejasvi Das ,  Anthony S. Doy ,  Zhong You

IPC: G06F3/01 ,  G06F3/041 ,  G06F3/044 ,  G06F3/045 ,  G01D5/20 ,  G01D5/243

Abstract: A system may include a tactile actuator for providing tactile feedback and a resonant phase sensing system. The resonant phase sensing system may include a resistive-inductive-capacitive sensor and a measurement circuit communicatively coupled to the resistive-inductive-capacitive sensor and the tactile actuator. The resistive-inductive-capacitive sensor may be configured to measure phase information associated with the resistive-inductive-capacitive sensor, based on the phase information, detect an indication of human interaction with the system proximate to the resistive-inductive-capacitive sensor, and trigger the tactile actuator to generate tactile feedback responsive to detecting the indication of human interaction.