Patents by Inventor Hsiao-Ming Chien

Hsiao-Ming Chien has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240113607
    Abstract: A resonant vibration actuator is provided, comprising: a casing, a mover, a plurality of electromagnet sets, two elastic suspensions, and a connecting circuit; the casing is provided with connection terminals for connection on the outside; the mover comprising: a mover frame, a plurality of permanent magnet units, two magnetic backs, the permanent magnet units and the magnetic backs being arranged in the mover frame; the electromagnet sets being arranged between two permanent magnet units of the mover; the elastic suspensions being connected to the casing and the mover respectively through two connection portions at both ends; the connecting circuit being used to connect the electromagnet set and the connection terminals outside the casing; wherein, by energizing the electromagnet set, the electromagnet acts on the permanent magnet unit to make the mover move relatively in the casing to generate vibration.
    Type: Application
    Filed: November 16, 2022
    Publication date: April 4, 2024
    Inventors: Chin-Sung Liu, Hsiao-Ming Chien, Chi-Ling Chang, Shin-Ter Tsai
  • Patent number: 11874967
    Abstract: A force sensing module with vibration feedback is disclosed, comprising: a substrate, a frame and a plurality of magnetic sensors; the substrate is disposed with at least one tactile actuator, and the substrate has a touch operation surface and a mounting surface on opposite sides, the tactile actuator is mounted on the mounting surface; the frame is disposed with at least three buffer spacers, the buffer spacers connect the frame to the substrate; the magnetic sensor includes a magnet and a Hall element, one of the magnet and the Hall element is disposed on the frame, and the other is disposed on the substrate; thereby when a force is applied on the touch operation surface to make the substrate generate an offset, the Hall element outputs a force signal due to the voltage change caused by the approaching magnet, and the signal drives the tactile actuator to generate a vibration feedback.
    Type: Grant
    Filed: May 25, 2022
    Date of Patent: January 16, 2024
    Assignee: TOPRAY MEMS INC.
    Inventors: Chin-Sung Liu, Shin-Ter Tsai, Hsiao-Ming Chien
  • Publication number: 20230333656
    Abstract: A force sensing module with vibration feedback is disclosed, comprising: a substrate, a frame and a plurality of magnetic sensors; the substrate is disposed with at least one tactile actuator, and the substrate has a touch operation surface and a mounting surface on opposite sides, the tactile actuator is mounted on the mounting surface; the frame is disposed with at least three buffer spacers, the buffer spacers connect the frame to the substrate; the magnetic sensor includes a magnet and a Hall element, one of the magnet and the Hall element is disposed on the frame, and the other is disposed on the substrate; thereby when a force is applied on the touch operation surface to make the substrate offset, the Hall element output a force signal due to the voltage change caused by approaching magnet, and the signal drives the tactile actuator to generate a vibration feedback.
    Type: Application
    Filed: May 25, 2022
    Publication date: October 19, 2023
    Inventors: Chin-Sung Liu, Shin-Ter Tsai, Hsiao-Ming Chien
  • Publication number: 20230042927
    Abstract: A tactile feedback device for producing uniform vibration in an effective area is provided, including: a substrate, a vibration motor, a frame, and a plurality of cushion pads; the vibration motor is fixed on the substrate at an off-center position and can vibrate back-and-forth in a first direction; the frame forms a plurality of bonding areas and at least a pair of cantilever beams, the cantilever beams are located on both sides of the first direction and parallel to a second direction, the second direction is perpendicular to the first direction, and the cantilever beams are partially fixed to the substrate; the cushion pads are fixed between the substrate and the bonding area; thereby, the tactile feedback of uniform vibration can be obtained when contacting each operation position of the substrate.
    Type: Application
    Filed: August 17, 2021
    Publication date: February 9, 2023
    Inventors: Chin-Sung Liu, Shin-Ter Tsai, Hsiao-Ming Chien
  • Patent number: 11562633
    Abstract: A slim type tactile feedback device is disclosed, including: a substrate, at least an overlapping plate, a support frame, a plurality of cushions and a vibration source; the overlapping plate being fixed to the substrate in a cantilever manner; the support frame including a frame, a void area, and at least a protruding support, the protruding support being a partial segment of the frame; the cushions being fixed between the substrate and the frame; the vibration source including a magnet set and a coil set, the magnet set and the coil set being fixed between the protruding support and the overlapping plate and located at outer side the substrate; the coil set and the magnet set being positioned correspondingly to each other and separated by a gap, the gap increasing when the substrate being pressed by finger, and the substrate moving back-and-forth through linkage motion of the vibration source.
    Type: Grant
    Filed: December 10, 2021
    Date of Patent: January 24, 2023
    Assignee: TOPRAY MEMS INC.
    Inventors: Chin-Sung Liu, Hsiao-Ming Chien
  • Patent number: 11404948
    Abstract: A linear vibration motor is disclosed, including: a movable part, a suspension device, and a fixed part; wherein the movable part includes at least one magnet set, and the fixed part at least includes a coil, at least one magnetically conductive element and a housing; the magnet set and the coil and the magnetically conductive element of the fixed part are arranged with a gap. The magnetically conductive element is located above, below, or both above and below the magnet set; the suspension device includes two stripe springs, respectively located on both sides of the movable part, with one side of each stripe spring connected to the movable part, and the other side connected to the fixed part. When not actuated, the suspension device is a straight full-length stripe without bending at the connections at both ends.
    Type: Grant
    Filed: October 28, 2020
    Date of Patent: August 2, 2022
    Assignee: TOPRAY MEMS INC.
    Inventors: Chin-Sung Liu, Shin-Ter Tsai, Hsiao-Ming Chien, Chi-Ling Chang
  • Publication number: 20220103050
    Abstract: A linear vibration motor is disclosed, including: a movable part, a suspension device, and a fixed part; wherein the movable part includes at least one magnet set, and the fixed part at least includes a coil, at least one magnetically conductive element and a housing; the magnet set and the coil and the magnetically conductive element of the fixed part are arranged with a gap. The magnetically conductive element is located above, below, or both above and below the magnet set; the suspension device includes two stripe springs, respectively located on both sides of the movable part, with one side of each stripe spring connected to the movable part, and the other side connected to the fixed part. When not actuated, the suspension device is a straight full-length stripe without bending at the connections at both ends.
    Type: Application
    Filed: October 28, 2020
    Publication date: March 31, 2022
    Inventors: Chin-Sung Liu, Shin-Ter Tsai, Hsiao-Ming Chien, Chi-Ling Chang
  • Publication number: 20210249941
    Abstract: A linear vibration motor with compound elastic system is disclosed, comprising: a movable portion, a suspension system, and a fixed portion; wherein the movable portion includes at least a magnet set, and the suspension system includes at least a support element and an elastic element, the fixed portion includes at least a coil set, a magnetically permeable element set, and a housing; the magnetically permeable element set includes at least a first magnetically permeable element set, disposed above or below the magnetic set; the magnetic set includes at least two magnets arranged spaced apart, with up-down magnetization direction and adjacent magnets of opposite polarities. The length of the magnet set is greater than the length of the first magnetically permeable element set. The elastic element and the magnetic restoring force between the magnet set and the magnetically permeable element set constitute a compound elastic system.
    Type: Application
    Filed: March 5, 2020
    Publication date: August 12, 2021
    Inventors: Chin-Sung Liu, Shin-Ter Tsai, Hsiao-Ming Chien
  • Patent number: 10971984
    Abstract: A linear vibration motor includes a fixed portion, a movable portion, and a suspension portion; the fixed portion further includes an outer frame, a coil set, a conductive sheet set, a connecting circuit and a terminal; the movable portion includes a bracket, a primary magnet set, at least a secondary magnet set; the suspension portion includes a pair of elastic members connected to the fixed portion and the movable portion, and provides a restoring force when the movable portion is displaced; the coil set and the primary magnet set provide a driving force to drive the movable portion to generate vibration; the conductive sheet set and the secondary magnet set provide damping when the movable portion moves.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: April 6, 2021
    Assignee: TOPRAY MEMS INC.
    Inventors: Chin-Sung Liu, Shin-Ter Tsai, Hsiao-Ming Chien
  • Patent number: 10938286
    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.
    Type: Grant
    Filed: October 7, 2019
    Date of Patent: March 2, 2021
    Assignee: TOPRAY MEMS INC.
    Inventors: Chin-Sung Liu, Shin-Ter Tsai, Hsiao-Ming Chien, Tzu-Kuang Fang
  • Publication number: 20200313531
    Abstract: The disclosure provides a linear vibration motor, comprising: a fixed portion, a movable portion, and a suspension portion; the fixed portion further comprises an outer frame, a coil set, a conductive sheet set, a connecting circuit and a terminal; the movable portion comprises a bracket, a primary magnet set, at least a secondary magnet set; the suspension portion comprises a pair of elastic members connected to the fixed portion and the movable portion, and provides a restoring force when the movable portion is displaced; the coil set and the primary magnet set provide a driving force to drive the movable portion to generate vibration; the conductive sheet set and the secondary magnet set provide damping when the movable portion moves.
    Type: Application
    Filed: May 24, 2019
    Publication date: October 1, 2020
    Inventors: Chin-Sung Liu, Shin-Ter Tsai, Hsiao-Ming Chien
  • Patent number: 10069393
    Abstract: A dual diamagnetic linear resonant actuator includes a magnetic induction element, a magnet set and a coil. The magnet set comprises four magnets. The N pole of first magnet, the N pole of second magnet, the S pole of third magnet and the S pole of fourth magnet press respectively against the first, second, third and fourth sides of the magnet induction element. The coil surrounds the magnetic induction element and the third and fourth magnets, and maintains a distance from the first end and the second end of the magnetic induction element, and from the N pole of the third and fourth magnets. As such, the first and second magnets compress magnetic field lines, and the third and fourth magnets strengthen the magnetic force, and guide the magnetic field lines towards the coil to accomplish concentration of magnetic field density and to avoid divergence of the magnetic field lines.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: September 4, 2018
    Assignee: TOPRAY MEMS INC.
    Inventors: Chin-Sung Liu, Hsiao-Ming Chien
  • Patent number: 9958945
    Abstract: A linear vibration actuator is provided, comprising a movable structure, a coil and an elastic suspension system. The elastic suspension system comprises a first and a second elastic sheets, and the first and second elastic sheet respectively comprising a first and a second fixed portions, a first and a second suspension portions, and a first and a second engaging portions. Both first and second suspension portions comprise a bend with an angle greater than 90°. The elastic suspension system enables the simple harmonic motion of the movable structure approximating a parallel motion to improve vibration effect without increasing current outputted to the coil, so as to reduce temperature and power consumption of the present invention. As a result, the present invention is able to provide superior vibration effect to portable electronic product and solve the overheating and power consumption problems.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: May 1, 2018
    Assignee: TOPRAY MEMS INC.
    Inventors: Chin-Sung Liu, Hsiao-Ming Chien
  • Publication number: 20180074280
    Abstract: A single-lens mechanic zero tilt angle adjustment method is disclosed, comprising a preparation step, an adjustment step and an engagement step, wherein preparation step comprising: disposing a lens at a voice coil motor (VCM), with a gap between the bottom of VCM and an engagement surface of an adaptor and the lens optical axis forming a tilt angle with the normal the adaptor plane; adjustment step comprising: adjusting the tilt angle by moving VCM and/or adaptor to zero degree and the optical axis perpendicular to the adaptor plane; and engagement step comprising: adhering the bottom of VCM to an engagement surface of adaptor to obtain a structure of single-lens mechanic zero tilt angle. As such, the adaptor plane is engaged to the image sensor, and the tilt angles between the lens optical axis o and the axis of the image sensor is zero to improve imaging quality.
    Type: Application
    Filed: November 7, 2016
    Publication date: March 15, 2018
    Inventors: Chin-Sung Liu, Shin-Ter Tsai, Chi-Ling Chang, Hsiao-Ming Chien, Yueh-Lin Hsieh
  • Publication number: 20170222533
    Abstract: A resettable linear resonant actuator is disclosed, including: a magnet set, a coil and a first magnetic induction element. The magnet set includes first and second magnets. The first side of first magnet contacts the second side of second magnet. The top and bottom surfaces of first and second magnets are at the same level respectively. The first magnet has N pole at top surface and S pole at bottom, while the second magnet has the opposite. The first coil is disposed above or below magnet set and corresponds to contact between the first magnet and second magnet. The first magnetic induction element is disposed at first coil and corresponds to the contact between first magnet and second magnet. With electricity running in first coil, the movable part executes simple harmonic motion by Lorentz force, with electricity off, the movable part returns to the original point by restoration force.
    Type: Application
    Filed: May 19, 2016
    Publication date: August 3, 2017
    Applicant: TOPRAY MEMS INC.
    Inventors: Chin-Sung LIU, Hsiao-Ming CHIEN
  • Publication number: 20170222530
    Abstract: A resettable dual diamagnetic linear resonant actuator is disclosed, comprising: a first and a second magnetic induction element, a magnet set and a coil. The magnet set comprises four magnets. The N pole of first magnet, the N pole of second magnet, the S pole of third magnet and the S pole of fourth magnet press respectively against the first, second, third and fourth side of the first magnet induction element. The coil surrounds the first magnetic induction element, the third and fourth magnets, and maintains a distance from the first end and the second end of the first magnetic induction element, and from the N pole of the third and fourth magnets. As such, the movable part formed by the first and second magnetic induction elements and the magnet set can return to original position by magnetic restoration force after cutting electricity off from the coil.
    Type: Application
    Filed: May 19, 2016
    Publication date: August 3, 2017
    Applicant: TOPRAY MEMS INC.
    Inventors: Chin-Sung LIU, Hsiao-Ming CHIEN
  • Publication number: 20170222531
    Abstract: A dual diamagnetic linear resonant actuator is disclosed, comprising: a magnetic induction element, a magnet set and a coil. The magnet set comprises four magnets. The N pole of first magnet, the N pole of second magnet, the S pole of third magnet and the S pole of fourth magnet press respectively against the first, second, third and fourth side of the magnet induction element. The coil surrounds the magnetic induction element, the third and fourth magnets, and maintains a distance from the first end and the second end of the magnetic induction element, and from the N pole of the third and fourth magnets. As such, the first and second magnets compress magnetic field line, and the third and fourth magnets strengthen the magnetic force, and guide the magnetic field lines towards the coil to accomplish concentrating magnetic field density and to avoid the magnetic field lines divergence.
    Type: Application
    Filed: May 19, 2016
    Publication date: August 3, 2017
    Applicant: TOPRAY MEMS INC.
    Inventors: Chin-Sung LIU, Hsiao-Ming CHIEN
  • Publication number: 20170222534
    Abstract: A dual diamagnetic linear resonant actuator with magnetic roller-balls is disclosed, comprising: a first magnetic induction element, a magnet set, a coil, an inner and an outer sliding track sets. The magnet set comprises four magnets. The N poles of first and second magnets, S poles of third and fourth magnets press respectively against the first, second, third and fourth side of the first magnet induction element. The inner sliding track set includes base bodies, disposed at first and second magnets and forming inner side tracks, and magnetic roller-balls, disposed at inner side tracks with center aligned with S pole of first and second magnets. The outer sliding track set includes outer side tracks, with the coil fixed to the outer side tracks, which contact the magnetic roller-balls. As such, the friction of the magnetic roller-balls with the inner and outer side tracks improves the steady state response efficiency.
    Type: Application
    Filed: May 19, 2016
    Publication date: August 3, 2017
    Applicant: TOPRAY MEMS INC.
    Inventors: Chin-Sung LIU, Hsiao-Ming CHIEN
  • Patent number: 8299342
    Abstract: A board includes a board body having a striking face and first and second symmetric axes defined in the striking face and perpendicular to each other and intersect with each other at a center of the striking face. The body includes first and second edges symmetric to each other relative to the first symmetric axis. The body further includes first and second wavy edges symmetric to each other relative to the second symmetric axis. The striking face is surrounded by the first and second edges and the first and second wavy edges. When an area around the center of the striking face is stricken, a plurality of natural frequencies is generated. The overtones of the natural frequencies are approximately integer multiple of the fundamental frequency, providing a harmonic sound and enhancing the sweetness of the sound.
    Type: Grant
    Filed: April 14, 2011
    Date of Patent: October 30, 2012
    Assignee: National Pingtung University of Science and Technology
    Inventors: Bor-Tsuen Wang, Hsiao-Ming Chien
  • Publication number: 20120061175
    Abstract: A board includes a board body having a striking face and first and second symmetric axes defined in the striking face and perpendicular to each other and intersect with each other at a center of the striking face. The body includes first and second edges symmetric to each other relative to the first symmetric axis. The body further includes first and second wavy edges symmetric to each other relative to the second symmetric axis. The striking face is surrounded by the first and second edges and the first and second wavy edges. When an area around the center of the striking face is stricken, a plurality of natural frequencies is generated. The overtones of the natural frequencies are approximately integer multiple of the fundamental frequency, providing a harmonic sound and enhancing the sweetness of the sound.
    Type: Application
    Filed: April 14, 2011
    Publication date: March 15, 2012
    Inventors: Bor-Tsuen Wang, Hsiao-Ming Chien