Patents by Inventor Chin-Yu Chao

Chin-Yu Chao 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).

  • Patent number: 9134570
    Abstract: There is provided a color-regulating device for illumination. The color-regulating device includes a light-valving structure for adjusting a flux ratio of outgoing light through the light-valving structure to incident light entering the light-valving structure, and a color-adjusting structure having a wavelength-band converting element for changing incident light with a wavelength band into outgoing light with a different wavelength band through the element. Wherein, the light-valving structure and the color-adjusting structure do not overlap on the traveling path of the light emitted from the light source. Mixing the outgoing light of the light source passing through the light-valving structure with the outgoing light of the light source passing through and at least a portion thereof converted by the color-adjusting structure with a different wavelength band yields a color-adjusted light of different color temperature from that of the light source.
    Type: Grant
    Filed: May 24, 2013
    Date of Patent: September 15, 2015
    Assignee: PLANCK CO., LTD.
    Inventors: Chin-Yu Chao, Chiu-Chang Huang, Chieh-Hsiung Kuan, Vin-Cent Su
  • Publication number: 20130250211
    Abstract: There is provided a color-regulating device for illumination. The color-regulating device includes a light-valving structure for adjusting a flux ratio of outgoing light through the light-valving structure to incident light entering the light-valving structure, and a color-adjusting structure having a wavelength-band converting element for changing incident light with a wavelength band into outgoing light with a different wavelength band through the element. Wherein, the light-valving structure and the color-adjusting structure do not overlap on the traveling path of the light emitted from the light source. Mixing the outgoing light of the light source passing through the light-valving structure with the outgoing light of the light source passing through and at least a portion thereof converted by the color-adjusting structure with a different wavelength band yields a color-adjusted light of different color temperature from that of the light source.
    Type: Application
    Filed: May 24, 2013
    Publication date: September 26, 2013
    Applicant: Planck Co., Ltd.
    Inventors: Chin-Yu CHAO, Chiu-Chang HUANG, Chieh-Hsiung KUAN, Vin-Cent SU
  • Patent number: 7144238
    Abstract: A servo motor control apparatus comprises a motion control unit for generating a position command; a first drive amplifier connecting with the motion control unit, for receiving the command to drive a first servo motor, and forming a first position control loop together with the motion control unit and the first servo motor; and at least one second drive amplifier connecting with the motion control unit, for receiving the command to drive at least one second servo motor, and forming a second position control loop together with the motion control unit and the second servo motor. The motion control unit comprises at least one synchronous controller, which receives and performs calculations to a difference value between position errors of the first and second position control loops for serving as speed and torque feed forward compensations to keep said second servo motor synchronous with the first servo motor.
    Type: Grant
    Filed: February 23, 2004
    Date of Patent: December 5, 2006
    Assignee: Industrial Technology Research Institute
    Inventor: Chin-Yu Chao
  • Publication number: 20050129794
    Abstract: A servo motor control apparatus comprises a motion control unit for generating a position command; a first drive amplifier connecting with the motion control unit, for receiving the command to drive a first servo motor, and forming a first position control loop together with the motion control unit and the first servo motor; and at least one second drive amplifier connecting with the motion control unit, for receiving the command to drive at least one second servo motor, and forming a second position control loop together with the motion control unit and the second servo motor. The motion control unit comprises at least one synchronous controller, which receives and performs calculations to a difference value between position errors of the first and second position control loops for serving as speed and torque feed forward compensations to keep said second servo motor synchronous with the first servo motor.
    Type: Application
    Filed: February 23, 2004
    Publication date: June 16, 2005
    Inventor: Chin-Yu Chao
  • Patent number: 6196347
    Abstract: A power transmission and pedal force sensing system for an electric motor includes an electric motor, a gear reduction train, a pedal force sensing system, and a power combination mechanism. These four mechanisms are concentrically, closely mounted in a single casing. The pedal force sensing system includes a pedal force transmitting sleeve having an elastic device mounted therein, and a pedal force sensing sleeve mounted outside the pedal force transmission path for converting the pedal force into an axial displacement. A proximity sensor is used to detect the axial displacement and outputs a voltage signal representing the magnitude of the pedal force. The power transmission path is shortened and only one casing is required to house all of the elements to thereby obtain a structure of a higher transmission efficiency and reduced volume and weight.
    Type: Grant
    Filed: September 22, 1998
    Date of Patent: March 6, 2001
    Assignee: Industrial Technology Research Institute
    Inventors: Chin-Yu Chao, Chih-Jin Wang, Yin-Jao Luo, Yuh-Wen Hwang
  • Patent number: 5800750
    Abstract: A method and apparatus for mold protection of motor-driven clamping unit is provided. The method and apparatus is based on high response characteristics of the motor and a new control method. A continuously variable restrictive motor output scheme is used in conjunction with the mechanics characteristics of the toggle mechanism to maintain a substantially constant mold protective force at all positions. Further, the mold protective force can be adaptively adjusted with respect to different types of molds and motional conditions so that the mold can be adequately protected whenever abnormal condition occurs during mold closing action. The motor output will thus not unduly increased to a great level that would damage the mold, the machine, or even the operators. The drawbacks of the prior art are thus eliminated.
    Type: Grant
    Filed: June 14, 1996
    Date of Patent: September 1, 1998
    Assignee: Industrial Technology Research Institute
    Inventors: Muh-Wang Laing, Shui-Bin Horng, Chin-Yu Chao, Han-Chieh Chang, Chung-Hsih Hsiao