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Patent Agency Ranking
公开(公告)号：US12141359B1
公开(公告)日：2024-11-12
申请号：US18244959
申请日：2023-09-12
Applicant: TOPRAY MEMS INC.
Inventor： Chin-Sung Liu , Tzu-Kuang Fang , Hsiao-Ming Chien , Shin-Ter Tsai
Abstract: A vibration feedback device and control method thereof are provided. The vibration feedback device includes a substrate, a frame and a plurality of displacement restoration devices; one end of each displacement restoration device is connected to the frame, and the other end is connected to the substrate; one side of the substrate is the user operation surface, and the other side includes at least one driving coil, at least one induction coil, a controller and a driver; the frame also includes a first magnet set corresponding to the driving coil and a second magnet set corresponding to the induction coil; the controller processes the signal obtained by the induction coil to drive the vibration feedback device to achieve a reliable vibration suppression effect.
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公开(公告)号：US10804785B2
公开(公告)日：2020-10-13
申请号：US16535094
申请日：2019-08-08
Applicant: TOPRAY MEMS INC.
Inventor： Chin-Sung Liu , Shin-Ter Tsai , Tzu-Kuang Fang
IPC: H02K33/18
Abstract: The invention discloses a control system and a vibration control method for an LRA. The vibration control method comprises: providing an induction coil, the arrangement and the winding of the induction coil able to obtain an inductive voltage proportional to LRA vibration speed; generating a vibration signal according to inductive voltage and feeding back to a driver connected to the LRA to control the vibration of LRA; wherein the generated vibration signal satisfying the following: when induction voltage is lower than a low-speed threshold, the vibration signal causes the driver to apply a driving force in the same direction; when induction voltage is higher than a high-speed threshold, the vibration signal causes the driver to apply a driving force in the opposite direction; when induction voltage is between the low-speed threshold and the high-speed threshold, the vibration signal does not force the driver to apply force.
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公开(公告)号：US20180335598A1
公开(公告)日：2018-11-22
申请号：US15642515
申请日：2017-07-06
Applicant: TOPRAY MEMS INC.
Inventor： Tzu-Kuang Fang , Chin-Sung Liu , Shin-Ter Tsai , Yung-Fu Huang , Yueh-Lin Hsieh
IPC: G02B7/02
Abstract: A adjustment method for lens driving apparatus is provided, comprising: (a) assembling a lens in a voice coil motor (VCM), with optical axis tilting towards a normal of VCM bottom surface and forming a tilt angle; forming at least three pillars at VCM bottom surface; (b) performing processing on the pillars according to the tilting direction and tilt angle, after processing, at least pillar having a length different from remaining pillars, each pillar having a bottom at first datum plane, and the optical axis perpendicular to first datum plane; (c) an image sensor having an engaging surface engaged to the pillar bottoms and located at the first datum plane, so that the lens optical axis s perpendicular to the engaging surface of the image sensor, resulting in the optical axis of the lens overlapping an axis of the image sensor to achieve 0° tilt angle.
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公开(公告)号：US10938286B1
公开(公告)日：2021-03-02
申请号：US16594304
申请日：2019-10-07
Applicant: TOPRAY MEMS INC.
Inventor： Chin-Sung Liu , Shin-Ter Tsai , Hsiao-Ming Chien , Tzu-Kuang Fang
Abstract: The invention discloses a control system for LRA, applicable to an LRA having a speed sensing coil. The control system comprises a signal amplifier, an excitation device, a flow controller, a processing unit, and a driver. The processing unit is connected to the signal amplifier, the excitation device and the flow controller, so as to stop output, output the excitation signal as a driving signal or process the induction signal from the signal amplifier into an appropriate system damping coefficient and output as a driving signal when the flow controller outputs a stop, excitation or braking state signal, respectively.
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公开(公告)号：US20200059149A1
公开(公告)日：2020-02-20
申请号：US16535094
申请日：2019-08-08
Applicant: TOPRAY MEMS INC.
Inventor： Chin-Sung Liu , Shin-Ter Tsai , Tzu-Kuang Fang
IPC: H02K33/18
Abstract: The invention discloses a control system and a vibration control method for an LRA. The vibration control method comprises: providing an induction coil, the arrangement and the winding of the induction coil able to obtain an inductive voltage proportional to LRA vibration speed; generating a vibration signal according to inductive voltage and feeding back to a driver connected to the LRA to control the vibration of LRA; wherein the generated vibration signal satisfying the following: when induction voltage is lower than a low-speed threshold, the vibration signal causes the driver to apply a driving force in the same direction; when induction voltage is higher than a high-speed threshold, the vibration signal causes the driver to apply a driving force in the opposite direction; when induction voltage is between the low-speed threshold and the high-speed threshold, the vibration signal does not force the driver to apply force.
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