Patents by Inventor Chang-Hua Lin

Chang-Hua Lin 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: 11932534
    Abstract: A microelectromechanical system (MEMS) structure and method of forming the MEMS device, including forming a first metallization structure over a complementary metal-oxide-semiconductor (CMOS) wafer, where the first metallization structure includes a first sacrificial oxide layer and a first metal contact pad. A second metallization structure is formed over a MEMS wafer, where the second metallization structure includes a second sacrificial oxide layer and a second metal contact pad. The first metallization structure and second metallization structure are then bonded together. After the first metallization structure and second metallization structure are bonded together, patterning and etching the MEMS wafer to form a MEMS element over the second sacrificial oxide layer. After the MEMS element is formed, removing the first sacrificial oxide layer and second sacrificial oxide layer to allow the MEMS element to move freely about an axis.
    Type: Grant
    Filed: March 16, 2022
    Date of Patent: March 19, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Hung-Hua Lin, Chang-Ming Wu, Chung-Yi Yu, Ping-Yin Liu, Jung-Huei Peng
  • Patent number: 10379169
    Abstract: A battery capacity estimating apparatus and a battery capacity estimating method of the battery capacity detecting apparatus are provided. A state of charge and a state of health of a battery are calculated according to dynamic impedance of the battery.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: August 13, 2019
    Assignees: TATUNG COMPANY, TATUNG UNIVERSITY
    Inventors: Chang-Hua Lin, Min-Hsuan Hung
  • Patent number: 9843207
    Abstract: A charging apparatus that can perform a charging action based on an initial capacity of a battery and a charging method of the charging apparatus are provided. The charging apparatus estimates the initial capacity of the battery, calculates an amount of a charging current according to the initial capacity of the battery, and provides the calculated amount of the charging current corresponding to the initial capacity of the battery.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: December 12, 2017
    Assignees: Tatung Company, TATUNG UNIVERSITY
    Inventors: Chang-Hua Lin, Min-Hsuan Hung
  • Publication number: 20160169975
    Abstract: A battery capacity estimating apparatus and a battery capacity estimating method of the battery capacity detecting apparatus are provided. A state of charge and a state of health of a battery are calculated according to dynamic impedance of the battery.
    Type: Application
    Filed: March 10, 2015
    Publication date: June 16, 2016
    Inventors: Chang-Hua Lin, Min-Hsuan Hung
  • Publication number: 20160172887
    Abstract: A charging apparatus that can perform a charging action based on an initial capacity of a battery and a charging method of the charging apparatus are provided. The charging apparatus estimates the initial capacity of the battery, calculates an amount of a charging current according to the initial capacity of the battery, and provides the calculated amount of the charging current corresponding to the initial capacity of the battery.
    Type: Application
    Filed: March 25, 2015
    Publication date: June 16, 2016
    Inventors: Chang-Hua Lin, Min-Hsuan Hung
  • Publication number: 20060113926
    Abstract: A multiple-CCFL parallel driving circuit and the associated current balancing control method for LCD are presented, wherein the circuit comprises a plurality of CCFLs for providing the backlight for a LCD; a boosting transformer with a plurality of outputs for providing the driving voltage and current for driving the plurality CCFLs; a plurality of ballast capacitors, the ballast capacitors connect between the boosting transformer and the CCFLs; and a multiple CCFL current balancing circuit. This invention uses a low cost current mirror circuit to equalize the driving current of a plurality of CCFLs and thus significantly improve the uniformity of the displayed image on a large-size LCD.
    Type: Application
    Filed: November 26, 2004
    Publication date: June 1, 2006
    Inventor: Chang-Hua Lin
  • Patent number: 7042171
    Abstract: A multiple-CCFL parallel driving circuit and the associated current balancing control method for LCD are presented, wherein the circuit comprises a plurality of CCFLs for providing the backlight for a LCD; a boosting transformer with a plurality of outputs for providing the driving voltage and current for driving the plurality CCFLs; a plurality of ballast capacitors, the ballast capacitors connect between the boosting transformer and the CCFLs; and a multiple CCFL current balancing circuit. This invention uses a low cost current mirror circuit to equalize the driving current of a plurality of CCFLs and thus significantly improve the uniformity of the displayed image on a large-size LCD.
    Type: Grant
    Filed: November 26, 2004
    Date of Patent: May 9, 2006
    Inventor: Chang-Hua Lin
  • Patent number: 7012383
    Abstract: A method for dimming operation of a lamp includes the steps of generating a trapezoidal wave signal in response to an input square wave low frequency dimming gating signal, and generating a driving signal that has a low frequency when the trapezoidal wave signal has a low level, that has a high frequency when the trapezoidal wave signal has a high level, that shifts gradually from the low frequency to the high frequency when the trapezoidal wave signal goes from the low level to the high level, and that shifts gradually from the high frequency to the low frequency when the trapezoidal wave signal goes from the high level to the low level. A module that performs the method is also disclosed.
    Type: Grant
    Filed: May 10, 2004
    Date of Patent: March 14, 2006
    Assignee: St. John's University
    Inventor: Chang-Hua Lin
  • Publication number: 20050127847
    Abstract: A method for dimming operation of a lamp includes the steps of generating a trapezoidal wave signal in response to an input square wave low frequency dimming gating signal, and generating a driving signal that has a low frequency when the trapezoidal wave signal has a low level, that has a high frequency when the trapezoidal wave signal has a high level, that shifts gradually from the low frequency to the high frequency when the trapezoidal wave signal goes from the low level to the high level, and that shifts gradually from the high frequency to the low frequency when the trapezoidal wave signal goes from the high level to the low level. A module that performs the method is also disclosed.
    Type: Application
    Filed: May 10, 2004
    Publication date: June 16, 2005
    Inventor: Chang-Hua Lin
  • Patent number: 6087785
    Abstract: A technology for eliminating acoustic resonance in a fluorescent lamp is disclosed in the present invention. The feature of the invention is to provide a harmonic compensating device to work with the fluorescent lamp and its relative peripheral circuits, such that current-dependent sources are provided to modulate the current in the lamp, thereby spreading the harmonic energy of the current in the lamp and eliminating acoustic resonance.
    Type: Grant
    Filed: December 4, 1998
    Date of Patent: July 11, 2000
    Assignee: National Science Council
    Inventors: Guan-Chyun Hsieh, Chang-Hua Lin