Invention Grant
- Patent Title: Touch feedback and sensing device
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Application No.: US16509609Application Date: 2019-07-12
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Publication No.: US11338325B2Publication Date: 2022-05-24
- Inventor: Ming-Ta Chiang , Min-Yu Kan , Meng-Zhu Ma , Huan Ding , Yu-Ju Chen
- Applicant: Interface Technology (ChengDu) Co., Ltd. , INTERFACE OPTOELECTRONICS (SHENZHEN) CO., LTD. , GENERAL INTERFACE SOLUTION LIMITED
- Applicant Address: CN Chengdu; CN Shenzhen; TW Zhunan
- Assignee: Interface Technology (ChengDu) Co., Ltd.,INTERFACE OPTOELECTRONICS (SHENZHEN) CO., LTD.,GENERAL INTERFACE SOLUTION LIMITED
- Current Assignee: Interface Technology (ChengDu) Co., Ltd.,INTERFACE OPTOELECTRONICS (SHENZHEN) CO., LTD.,GENERAL INTERFACE SOLUTION LIMITED
- Current Assignee Address: CN Chengdu; CN Shenzhen; TW Zhunan
- Agency: ScienBiziP, P.C.
- Priority: CN201910405955.8 20190516
- Main IPC: B06B1/06
- IPC: B06B1/06 ; H01L41/18 ; G01L1/22 ; G06F3/01 ; H01L41/047 ; H01L41/08 ; H01L41/187

Abstract:
A touch feedback and sensing device includes a circuit board, a piezoelectric ceramic actuator on the circuit board; and at least one strain sensor on the circuit board. The piezoelectric ceramic actuator includes a piezoelectric ceramic block, a cathode and an anode on the piezoelectric ceramic block. Different voltages are applied to the cathode and the anode to vibrate the piezoelectric ceramic block. The circuit board vibrates with vibration of the piezoelectric ceramic block. The at least one strain sensor is configured to detect and monitor vibration of the circuit board.
Information query
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