Patents by Inventor Sung-Lin Tsai
Sung-Lin Tsai 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).
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Patent number: 11956541Abstract: A control method of a driving mechanism is provided, including: the driving mechanism provides a first electrical signal from a control assembly to the driving mechanism to move the movable portion into an initial position relative to the fixed portion, wherein the control assembly includes a control unit and a position sensing unit; the status signal of an inertia sensing unit is read; the control unit sends the status signal to the control unit to calculate a target position; the control unit provides a second electrical signal to the driving assembly according to the target position for driving the driving assembly; a position signal is sent from the position sensing unit to the control unit; the control unit provides a third electric signal to the driving assembly to drive the driving assembly according the position signal.Type: GrantFiled: January 26, 2023Date of Patent: April 9, 2024Assignee: TDK TAIWAN CORP.Inventors: Chao-Chang Hu, Chen-Hsien Fan, Sung-Mao Tsai, Yueh-Lin Lee, Yu-Chiao Lo, Mao-Kuo Hsu, Ching-Chieh Huan, Yi-Chun Cheng
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Patent number: 11934034Abstract: An optical element driving mechanism is provided. The optical element driving mechanism includes a movable portion, a fixed portion, a driving assembly, and an assist assembly. The movable portion is used for connecting to an optical element having a main axis. The movable portion is movable relative to the fixed portion. The driving assembly drives the movable portion to move relative to the fixed portion. The assist assembly limits the movement of the movable portion relative to the fixed portion.Type: GrantFiled: April 8, 2020Date of Patent: March 19, 2024Assignee: TDK TAIWAN CORP.Inventors: Chen-Hsien Fan, Yueh-Lin Lee, Yu-Chiao Lo, Sung-Mao Tsai, Shang-Hung Chen
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Patent number: 11914169Abstract: An optical member driving mechanism is provided. The optical member driving mechanism is configured to hold an optical member and drive the optical member to move. The optical member driving mechanism includes a first movable portion, a fixed portion, and a driving assembly. The first movable portion is movable relative to the fixed portion. The driving assembly is configured to drive the first movable portion to move relative to the fixed portion.Type: GrantFiled: January 24, 2020Date of Patent: February 27, 2024Assignee: TDK TAIWAN CORP.Inventors: Chen-Hsien Fan, Sung-Mao Tsai, Chia-Che Wu, Yueh-Lin Lee
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Patent number: 11184014Abstract: Disclosed is a voltage-controlled oscillator (VCO) capable of providing an effective high VCO gain against slow change of an input voltage caused by the variation of manufacturing processes, temperature, voltage, etc. and providing an effective low VCO gain against rapid change of the input voltage for reducing jitter. The VCO includes: an input circuit generating an input current according to an input voltage; a first current supply circuit generating a first output current according to the input current; a second current supply circuit generating a second output current according to the input current; a filter coupled to the input circuit and the second current supply circuit and configured to slow down the influence caused by the variation of the input current on the second current supply circuit; and an oscillating circuit generating an output clock according to the first output current and the second output current.Type: GrantFiled: June 30, 2020Date of Patent: November 23, 2021Assignee: REALTEK SEMICONDUCTOR CORPORATIONInventors: Sung-Lin Tsai, Kuo-Wei Wu, Jian-Ru Lin
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Patent number: 11025256Abstract: A filter includes a filter circuit, a first processing circuit, and a second processing circuit. The filter circuit receives an input signal from an input node of the filter, and converts the input signal into a voltage output. The first processing circuit provides a first control voltage to an output node of the filter according to the voltage output, wherein the first control voltage is derived from an alternating current (AC) component of the voltage output. The second processing circuit provides a second control voltage to the output node of the filter according to the voltage output, wherein the second control voltage is derived from applying DC level shift to a direct current (DC) component of the voltage output.Type: GrantFiled: June 10, 2019Date of Patent: June 1, 2021Assignee: MediaTek Inc.Inventors: Yi-Chieh Huang, Sung-Lin Tsai
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Publication number: 20200336150Abstract: Disclosed is a voltage-controlled oscillator (VCO) capable of providing an effective high VCO gain against slow change of an input voltage caused by the variation of manufacturing processes, temperature, voltage, etc. and providing an effective low VCO gain against rapid change of the input voltage for reducing jitter. The VCO includes: an input circuit generating an input current according to an input voltage; a first current supply circuit generating a first output current according to the input current; a second current supply circuit generating a second output current according to the input current; a filter coupled to the input circuit and the second current supply circuit and configured to slow down the influence caused by the variation of the input current on the second current supply circuit; and an oscillating circuit generating an output clock according to the first output current and the second output current.Type: ApplicationFiled: June 30, 2020Publication date: October 22, 2020Inventors: SUNG-LIN TSAI, KUO-WEI WU, JIAN-RU LIN
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Patent number: 10756740Abstract: Disclosed is a voltage-controlled oscillator (VCO) capable of providing an effective high VCO gain against slow change of an input voltage caused by the variation of manufacturing processes, temperature, voltage, etc. and providing an effective low VCO gain against rapid change of the input voltage for reducing jitter. The VCO includes: an input circuit generating an input current according to an input voltage; a first current supply circuit generating a first output current according to the input current; a second current supply circuit generating a second output current according to the input current; a filter coupled to the input circuit and the second current supply circuit and configured to slow down the influence caused by the variation of the input current on the second current supply circuit; and an oscillating circuit generating an output clock according to the first output current and the second output current.Type: GrantFiled: October 23, 2018Date of Patent: August 25, 2020Assignee: REALTEK SEMICONDUCTOR CORPORATIONInventors: Sung-Lin Tsai, Kuo-Wei Wu, Jian-Ru Lin
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Publication number: 20200067515Abstract: A filter includes a filter circuit, a first processing circuit, and a second processing circuit. The filter circuit receives an input signal from an input node of the filter, and converts the input signal into a voltage output. The first processing circuit provides a first control voltage to an output node of the filter according to the voltage output, wherein the first control voltage is derived from an alternating current (AC) component of the voltage output. The second processing circuit provides a second control voltage to the output node of the filter according to the voltage output, wherein the second control voltage is derived from applying DC level shift to a direct current (DC) component of the voltage output.Type: ApplicationFiled: June 10, 2019Publication date: February 27, 2020Inventors: Yi-Chieh Huang, Sung-Lin Tsai
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Publication number: 20190140652Abstract: Disclosed is a voltage-controlled oscillator (VCO) capable of providing an effective high VCO gain against slow change of an input voltage caused by the variation of manufacturing processes, temperature, voltage, etc. and providing an effective low VCO gain against rapid change of the input voltage for reducing jitter. The VCO includes: an input circuit generating an input current according to an input voltage; a first current supply circuit generating a first output current according to the input current; a second current supply circuit generating a second output current according to the input current; a filter coupled to the input circuit and the second current supply circuit and configured to slow down the influence caused by the variation of the input current on the second current supply circuit; and an oscillating circuit generating an output clock according to the first output current and the second output current.Type: ApplicationFiled: October 23, 2018Publication date: May 9, 2019Inventors: SUNG-LIN TSAI, KUO-WEI WU, JIAN-RU LIN
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Patent number: 8824615Abstract: A frequency tracking circuit is disclosed. The frequency tracking circuit includes an edge selector, a phase-frequency processor and a digital controlled oscillator. The edge selector receives a data signal and feedback clock signal and sequentially outputs a data edge signal and a feedback-clock-edge signal. The phase-frequency processor receives the data edge signal and the feedback-clock-edge signal and outputs a frequency adjusting digital signal after executing differential operation according to a first phase difference and a second phase difference. The digital controlled oscillator receives the frequency adjusting digital signal so as to adjust frequency of the feedback clock signal. The phase-frequency processor outputs a frequency tracking signal to the edge selector, wherein the edge selector utilizes the frequency tracking signal for acquiring the data edge signal and utilizes the data edge signal for acquiring the feedback-clock-edge signal.Type: GrantFiled: March 14, 2013Date of Patent: September 2, 2014Assignee: National Taiwan UniversityInventors: Tsung-Hsien Lin, Cheng-En Liu, Chen-Chien Lin, Wei-Hao Chiu, Sung-Lin Tsai
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Publication number: 20140152356Abstract: A frequency tracking circuit is disclosed. The frequency tracking circuit includes an edge selector, a phase-frequency processor and a digital controlled oscillator. The edge selector receives a data signal and feedback clock signal and sequentially outputs a data edge signal and a feedback-clock-edge signal. The phase-frequency processor receives the data edge signal and the feedback-clock-edge signal and outputs a frequency adjusting digital signal after executing differential operation according to a first phase difference and a second phase difference. The digital controlled oscillator receives the frequency adjusting digital signal so as to adjust frequency of the feedback clock signal. The phase-frequency processor outputs a frequency tracking signal to the edge selector, wherein the edge selector utilizes the frequency tracking signal for acquiring the data edge signal and utilizes the data edge signal for acquiring the feedback-clock-edge signal.Type: ApplicationFiled: March 14, 2013Publication date: June 5, 2014Applicant: NATIONAL TAIWAN UNIVERSITYInventors: TSUNG-HSIEN LIN, CHENG-EN LIU, CHEN-CHIEN LIN, WEI-HAO CHIU, SUNG-LIN TSAI
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Patent number: 7899635Abstract: A sampling inspection method is provided. The sampling inspection method is adapted for a multi-product production line including a plurality of tools. The sampling inspection method includes the steps of: providing a tool record, which records a sampling data of each of the tools; then checking each sampling data recorded in the tool record, and finding out at least one unsampled tool from the tools; then defining a plurality of product lots as being performed with process operations by at least one of the at least one unsampled tool; and determining at least one of the product lots for performing a sampling inspection.Type: GrantFiled: September 19, 2008Date of Patent: March 1, 2011Assignee: United Microelectronics Corp.Inventors: Kai-Ping Huang, Sung-Lin Tsai, Michael Kian Ann Wee, Boon-Wah Chong
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Publication number: 20100076584Abstract: A sampling inspection method is provided. The sampling inspection method is adapted for a multi-product production line including a plurality of tools. The sampling inspection method includes the steps of: providing a tool record, which records a sampling data of each of the tools; then checking each sampling data recorded in the tool record, and finding out at least one unsampled tool from the tools; then defining a plurality of product lots as being performed with process operations by at least one of the at least one unsampled tool; and determining at least one of the product lots for performing a sampling inspection.Type: ApplicationFiled: September 19, 2008Publication date: March 25, 2010Applicant: UNITED MICROELECTRONICS CORP.Inventors: Kai-Ping Huang, Sung-Lin Tsai, Michael Kian Ann Wee, Boon-Wah Chong
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Publication number: 20060043902Abstract: A power supply device for an electronic apparatus includes a housing, a battery unit disposed in the housing, a control circuit disposed in the housing and coupled electrically to the battery unit, and a power transmission cord having an inner end coupled to the control circuit, and an outer end that extends out of the housing and that is terminated by an electrical connector to permit electrical connection with the electronic apparatus. The control circuit is operable so as to control supply of battery power from the battery unit to the electronic apparatus via the power transmission cord. A cord spool is mounted operably in the housing, and is operable for winding and unwinding the power transmission cord thereon.Type: ApplicationFiled: August 27, 2004Publication date: March 2, 2006Inventors: Sung-Lin Tsai, Jung-Chung Chen, Yum-Ming Yu, Chun-Ming Wu, Yi-Cheng Chang
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Publication number: 20060007173Abstract: A combined digitizer tablet and external power supply device for an electronic apparatus includes a housing, a battery unit disposed in the housing, and a sensing tablet unit disposed on the housing and that generates electrical signals in response to writing activity thereon. A control circuit is coupled electrically to the sensing tablet unit and the battery unit, and receives the electrical signals from the sensing tablet unit to generate corresponding coordinate position data. A data communications unit establishes a communications link with the electronic apparatus to transmit the coordinate position data thereto. A power output unit is coupled electrically to the control circuit, and enables electrical coupling to the electronic apparatus. The control circuit controls the supply of battery power from the battery unit to the electronic apparatus via the power output unit.Type: ApplicationFiled: June 23, 2004Publication date: January 12, 2006Inventors: Sung-Lin Tsai, Jung-Chung Chen, Yum-Ming Yu, Chun-Ming Wu, Yi-Cheng Chang
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Patent number: 6951582Abstract: An air purifier device includes a fan unit in an electrically conductive housing for drawing ambient air into the housing via an air inlet, and an electrically conductive dust-collecting member in the housing and disposed adjacent to an air outlet. A detecting unit is operable so as to provide a control signal in response to at least one of a change in electrical characteristics of the housing due to body contact therewith, and a change in electrical characteristics of the dust-collecting member due to excessive accumulation of dust thereon. A power control unit is operable to supply electric power to a negative ion generating unit such that a drive voltage is applied to an ionizing member of the negative ion generating unit, and is responsive to the control signal from the detecting unit to interrupt supply of the electric power to the negative ion generating unit.Type: GrantFiled: November 4, 2004Date of Patent: October 4, 2005Inventors: Sung-Lin Tsai, Chun-Ming Wu