Patents by Inventor Chih-Ming Wu

Chih-Ming Wu 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: 20250070558
    Abstract: Power conversion system includes a DC/DC conversion circuit, an energy tank, a switch, and a controller. DC/DC conversion circuit is configured to convert a first DC power into a second DC power and provide second DC power to a dynamic load. Energy tank is coupled to DC/DC conversion circuit. Switch is coupled between energy tank and DC/DC conversion circuit. Controller is coupled to energy tank and switch, and is configured to detect a first voltage of first DC power and a second voltage of second DC power to determine a change of dynamic load. When controller detects that first voltage is lower than a first preset voltage or detects that second voltage is lower than a second preset voltage, controller conducts switch so that a third DC power stored in energy tank is provided to DC/DC conversion circuit to compensate one of first DC power and second DC power.
    Type: Application
    Filed: June 14, 2024
    Publication date: February 27, 2025
    Inventors: Chih-Ming WU, Chien-Yu LIN, Ying-Hsiu CHEN
  • Patent number: 11320465
    Abstract: A method of inspecting power units applied to a plurality of power units is connected to a signal bus. The method is to disconnect the power unit having an output current from the signal bus, give a control command by a controller for raising the output current, measure the output current after the control command is given, and compare the measured output current with the target current value corresponding to the control command for determining an inspection result. The present disclosed example can effectively reduce inspection time and improve inspection accuracy.
    Type: Grant
    Filed: September 9, 2020
    Date of Patent: May 3, 2022
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Chih-Ming Wu, Chien-Yu Lin, Tsung-Hsun Lee
  • Patent number: 11282475
    Abstract: An electronic device control method applied to an electronic device can operate in a display mode and a touch sensing mode. The method comprises: (a) controlling the electronic device to have a first mode switch frequency; and (b) controlling the electronic device to have a second mode switch frequency different from the first mode switch frequency. The first mode switch frequency and the second mode switch frequency are frequencies for switching between the display mode and the touch sensing mode.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: March 22, 2022
    Assignee: HIMAX TECHNOLOGIES LIMITED
    Inventors: Chih-Ming Wu, Yaw-Guang Chang, Chin-Jung Chen, Yu-Feng Lin, Chung-Wen Chang
  • Publication number: 20210349130
    Abstract: A method of inspecting power units applied to a plurality of power units is connected to a signal bus. The method is to disconnect the power unit having an output current from the signal bus, give a control command by a controller for raising the output current, measure the output current after the control command is given, and compare the measured output current with the target current value corresponding to the control command for determining an inspection result. The present disclosed example can effectively reduce inspection time and improve inspection accuracy.
    Type: Application
    Filed: September 9, 2020
    Publication date: November 11, 2021
    Inventors: Chih-Ming WU, Chien-Yu LIN, Tsung-Hsun LEE
  • Patent number: 11139678
    Abstract: A power supply system for automatic transfer switch applications comprises two first switch apparatuses, two second switch apparatuses, and a control unit. Each first switch apparatus comprises a first relay switch and a first switch assembly. The first switch assembly comprises a first bypass switch, a first semi-controllable switch, and a first fully-controllable switch. Each second switch apparatus comprises a second relay switch and a second switch assembly. The second switch assembly comprises a second bypass switch, a second semi-controllable switch, and a second fully-controllable switch. The control unit controls the two first switch apparatuses and the two switch apparatuses to uninterruptedly supply power to a load.
    Type: Grant
    Filed: May 27, 2020
    Date of Patent: October 5, 2021
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Chih-Ming Wu, Chi-Ming Mai, Yu-Ruei Zeng
  • Publication number: 20210305840
    Abstract: A power supply system for automatic transfer switch applications comprises two first switch apparatuses, two second switch apparatuses, and a control unit. Each first switch apparatus comprises a first relay switch and a first switch assembly. The first switch assembly comprises a first bypass switch, a first semi-controllable switch, and a first fully-controllable switch. Each second switch apparatus comprises a second relay switch and a second switch assembly. The second switch assembly comprises a second bypass switch, a second semi-controllable switch, and a second fully-controllable switch. The control unit controls the two first switch apparatuses and the two switch apparatuses to uninterruptedly supply power to a load.
    Type: Application
    Filed: May 27, 2020
    Publication date: September 30, 2021
    Inventors: Chih-Ming WU, Chi-Ming MAI, Yu-Ruei ZENG
  • Publication number: 20210027740
    Abstract: An electronic device control method applied to an electronic device can operate in a display mode and a touch sensing mode. The method comprises: (a) controlling the electronic device to have a first mode switch frequency; and (b) controlling the electronic device to have a second mode switch frequency different from the first mode switch frequency. The first mode switch frequency and the second mode switch frequency are frequencies for switching between the display mode and the touch sensing mode.
    Type: Application
    Filed: July 23, 2019
    Publication date: January 28, 2021
    Inventors: Chih-Ming Wu, Yaw-Guang Chang, Chin-Jung Chen, Yu-Feng Lin, Chung-Wen Chang
  • Publication number: 20200166674
    Abstract: An anti-fog lens includes an optical body, made of polycarbonates, and an anti-fog film combination located at a rear surface of the optical body. The anti-fog film combination is constructed of an anti-fog film made of triacetate, and a polycarbonate film, which are joined together by spreading an optical adhesive therebetween. The optical body and the anti-fog film combination are subsequently placed in a mold into which a molten polycarbonate material is fed. As such, the optical body and the anti-fog film can be joined together after the molten polycarbonate material is cooled and solidified. Preferably, the anti-fog film has a thickness between 0.3 and 0.6 mm, and the polycarbonate film has a thickness between 0.3 and 0.6 mm. The anti-fog lens can achieve a stable and excellent performance on prevention of fog.
    Type: Application
    Filed: November 22, 2018
    Publication date: May 28, 2020
    Applicant: KODA OPTICAL CO., LTD.
    Inventor: Chih Ming Wu
  • Publication number: 20200166779
    Abstract: A photochromic lens includes an optical body made of polycarbonates and a polycarbonate film combination located at a front surface of the optical body. The polycarbonate film combination is constructed of a first polycarbonate film and a second polycarbonate film, between which a photochromic material and an optical adhesive are provided. The optical body and the polycarbonate film combination are subsequently placed in a mold into which a molten polycarbonate material is fed. As such, the optical body and the polycarbonate film combination can be joined together after the molten polycarbonate material is cooled and solidified, thus making a lens with a stable and excellent performance on changing color. Preferably, each of the first and second polycarbonate films has a thickness between 0.1 and 0.5 mm. The temperature inside the mold reaches about 260 to 280 degrees C. upon the molten polycarbonate material being fed into the mold.
    Type: Application
    Filed: November 22, 2018
    Publication date: May 28, 2020
    Applicant: KODA OPTICAL CO., LTD.
    Inventor: Chih Ming WU
  • Patent number: 10601245
    Abstract: A power redundant system includes a switch module, a power-supplying module and a control unit. The switch module includes switch units. Each switch unit switches a power as an input power. The power-supplying module includes power-supplying units. Each power-supplying unit is connected to a switch unit correspondingly and converts the input power into an output power and supplies the output power to a load. The control unit controls the switch units to switch one of input sources of the power as the input power. If one of the switch units or power-supplying units is not operational, an electric power supplied by the power-supplying units connected to the remaining switch units correspondingly is greater than or equal to an electric power required by the load. When one of the input sources is abnormal, the control unit controls the switch units to switch to another input source.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: March 24, 2020
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Chih-Ming Wu, Chien-Yu Lin, Chih-Chiang Chan
  • Publication number: 20190391309
    Abstract: A photochromic anti-fog lens and a method for making a photochromic anti-fog lens includes a step of mixing photochromic material in glue which is used to glue the second transparent plastic plate to the inner side of the first transparent plastic plate to get a photochromic material layer between the first and second transparent plastic plates. A step of attaching an anti-fog film to the inner side of the second transparent plastic plate to form a photochromic anti-fog composite lens. A step of putting the photochromic anti-fog composite lens in the cavity of a molding set. A step of injecting melted lens-forming material into the cavity of the molding set, the melted lens-forming material connected with the first transparent plastic plate to form the photochromic anti-fog lens that includes multiple layers with high structural strength.
    Type: Application
    Filed: June 25, 2018
    Publication date: December 26, 2019
    Applicant: KODA OPTICAL CO., LTD.
    Inventor: Chih Ming WU
  • Publication number: 20190131835
    Abstract: A rotor for a motor according to the invention is provided to solve the problem where the rotor of the conventional motor does not have an excellent vibration-reducing effect. The rotor for the motor includes a shaft, an elastic sleeve, a permanent magnet and two engaging units. The elastic sleeve is fit around the shaft. The permanent magnet is fit around the elastic sleeve. The elastic sleeve and the permanent magnet have two sides spaced from each other in an axial direction. The two engaging units are coupled with the elastic sleeve and the permanent magnet at the two sides, respectively. Each of the two engaging units includes a through-hole through which the shaft extends. The two engaging units are not in contact with the shaft.
    Type: Application
    Filed: January 15, 2018
    Publication date: May 2, 2019
    Inventors: Alex Horng, Chih-Ming Wu, Chia-Wei Hsiao
  • Publication number: 20180159364
    Abstract: A power redundant system includes a switch module, a power-supplying module and a control unit. The switch module includes switch units. Each switch unit switches a power as an input power. The power-supplying module includes power-supplying units. Each power-supplying unit is connected to a switch unit correspondingly and converts the input power into an output power and supplies the output power to a load. The control unit controls the switch units to switch one of input sources of the power as the input power. If one of the switch units or power-supplying units is not operational, an electric power supplied by the power-supplying units connected to the remaining switch units correspondingly is greater than or equal to an electric power required by the load. When one of the input sources is abnormal, the control unit controls the switch units to switch to another input source.
    Type: Application
    Filed: September 19, 2017
    Publication date: June 7, 2018
    Inventors: Chih-Ming WU, Chien-Yu LIN, Chih-Chiang CHAN
  • Publication number: 20170280104
    Abstract: A camera system with a full view monitoring function includes a base, a first camera apparatus, a supporting component, a second camera apparatus and a wireless transmission module. A circuit board is disposed on the base. The first camera apparatus is movably disposed on the base and electrically connected with the circuit board. The supporting component is disposed on the base. The second camera apparatus is disposed on the supporting component to be located above the first camera apparatus. The wireless transmission module includes a first terminal and a second terminal. The first terminal is electrically connected with the circuit board. The second terminal is disposed on the second camera apparatus and adjacent by the first terminal, and wireless transmission connection is established between the first terminal and the second terminal to electrically connect the second camera apparatus with the circuit board.
    Type: Application
    Filed: March 22, 2016
    Publication date: September 28, 2017
    Inventors: Chih-Ming Wu, Min-Wei Chen, Fu-Fan Cheng
  • Patent number: 9709709
    Abstract: An optical lampshade is capable of decreasing noise of optical reflection includes a first transparent component, a second transparent component and an opaque component. An opening is formed on the first transparent component. An accommodating space is located inside the first transparent component. The first transparent component includes a first interior surface and a first exterior surface. The second transparent component is assembled with the first transparent component via the opening. The opaque component is disposed between the first transparent component and the second transparent component. The opaque component stretches from the first exterior surface to the first interior surface, and is suspended inside the accommodating space of the first transparent component.
    Type: Grant
    Filed: November 11, 2014
    Date of Patent: July 18, 2017
    Assignee: GeoVision Inc.
    Inventor: Chih-Ming Wu
  • Patent number: 9525113
    Abstract: A method of manufacturing a LED package structure for preventing lateral light leakage includes placing a plurality of light-emitting units on a carrier substrate, the light-emitting units being electrically connected to the carrier substrate; forming a plurality of light-transmitting gel bodies on the carrier substrate for respectively enclosing the light-emitting units, the light-transmitting gel bodies being separated from each other to form a gel receiving space among the light-transmitting gel bodies; forming a light-shielding gel body to fill up the gel receiving space; and then cutting the carrier substrate and the light-shielding gel body to form the plurality of LED package structures separated from each other, the carrier substrate being cut to form a plurality of circuit substrates for respectively carrying the light-emitting units.
    Type: Grant
    Filed: July 21, 2015
    Date of Patent: December 20, 2016
    Assignees: BRIGHTEK OPTOELECTRONIC (SHENZHEN) CO., LTD., BRIGHTEK OPTOELECTRONIC CO., LTD.
    Inventors: Chien-Chung Huang, Chih-Ming Wu, Tung Po Huang
  • Patent number: 9432566
    Abstract: A camera system includes at least one IP camera apparatus and a central controlling apparatus. The IP camera apparatus includes a base module, a lens module and a first connector. The lens module is connected to the base module. A control unit of the base module is adapted to analyze information acquired by the lens module. The first connector is disposed on the base module. The central controlling apparatus includes at least one holder, a second connector and a controller. The base module is detachably disposed on the holder. The second connector is disposed on the at least one holder to electrically connect to the first connector since the central controlling apparatus is assembled with the IP camera apparatus. The controller is electrically connected to the second connector. The controller is adapted to set an address for the IP camera apparatus via the first connector and the second connector.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: August 30, 2016
    Assignee: GeoVision Inc.
    Inventors: Chih-Ming Wu, Chun-Kai Hsu, Tsun-Jen Cheng
  • Patent number: D802044
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: November 7, 2017
    Assignee: GeoVision Inc.
    Inventors: Chih-Ming Wu, Min-Wei Chen, Fu-Fan Cheng
  • Patent number: D813291
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: March 20, 2018
    Assignee: GeoVision Inc.
    Inventors: Chih-Ming Wu, Min-Wei Chen, Ying-Ta Liu
  • Patent number: D819108
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: May 29, 2018
    Assignee: GeoVision Inc.
    Inventors: Chih-Ming Wu, Min-Wei Chen, Yi-Hsiang Wang