Patents by Inventor Wen-Liang Liu
Wen-Liang Liu 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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Publication number: 20240136463Abstract: This disclosure discloses an optical sensing device. The device includes a carrier body; a first light-emitting device disposed on the carrier body; and a light-receiving device including a group III-V semiconductor material disposed on the carrier body, including a light-receiving surface having an area, wherein the light-receiving device is capable of receiving a first received wavelength having a largest external quantum efficiency so the ratio of the largest external quantum efficiency to the area is ?13.Type: ApplicationFiled: December 20, 2023Publication date: April 25, 2024Applicant: EPISTAR CORPORATIONInventors: Yi-Chieh LIN, Shiuan-Leh LIN, Yung-Fu CHANG, Shih-Chang LEE, Chia-Liang HSU, Yi HSIAO, Wen-Luh LIAO, Hong-Chi SHIH, Mei-Chun LIU
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Patent number: 11950771Abstract: The present invention provides a supporting hook structure, comprising a sleeve, a fixing rod, a first limit unit, a hook and a fixing device. The fixing rod is connected to the side surface of the sleeve. The hook body is connected to one end of the sleeve. The first limit unit is arranged on the side surface of the sleeve and adjacent to the hook body. The first limit unit makes the hook body rotates with the axis direction of the sleeve as a rotation axis. The fixing device is connected to the other end of the sleeve to fix the rotating position of the hook body. Through the above, the hook part enters the proximal thigh from a surgical entrance and the hook part rotates to make the hook part abut against the proximal femur to complete the positioning and fixation of the femur hook structure to the femur.Type: GrantFiled: August 16, 2021Date of Patent: April 9, 2024Assignee: UNITED ORTHOPEDIC CORPORATIONInventors: Yan-Shen Lin, Jiann-Jong Liau, Yu-Liang Liu, Teh-Yang Lin, Wen-Chuan Chen
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Patent number: 10678984Abstract: The available delivery capability (ADC) of a power distribution network with respect to a power transaction is evaluated in real-time. The power transaction involves simultaneous power deliveries from power sources in a source area to loads in a sink area. First, a list of contingencies are ranked in the power distribution network with respect to static security constraints to obtain a subset of top-ranked contingencies. For each top-ranked contingency in the subset, a representation of the power transaction in a steady state of the power distribution network, in a form of parameterized three-phase power flow equations, is solved to obtain a corresponding power delivery capability (PDC) and a corresponding binding constraint among the static security constraints. The reliability of the power transaction in the power distribution network is then evaluated based on, at least in part, a first contingency PDC which is a smallest PDC among obtained corresponding PDCs.Type: GrantFiled: April 26, 2017Date of Patent: June 9, 2020Assignees: Bigwood Technology, Inc., State Grid Xiamen Electric Power Supply Company, ShanDong Global Optimal Big Data Science and Tech, Tianjin UniversityInventors: Hsiao-Dong Chiang, Sheng Hao, Wen-Liang Liu, Jun Xiong, Jin-Xiang Chen, Guo-Wei Chen, Yong-Feng Zhang, Gilburt Chiang
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Patent number: 8174484Abstract: A signal processing method is provided and includes the following steps. A first synchronizing signal having a synchronizing frequency and a next expected pulse with an expected rising edge is provided. A second synchronizing signal having a selected frequency being within a frequency range is produced when the synchronizing frequency of the first synchronizing signal is out of a frequency range. A third synchronizing signal having a first pulse with a first rising edge is produced when the synchronizing frequency is within the frequency range, wherein the first rising edge is produced at an expected time point. Whether the next expected pulse appears in a period from the expected time point to a certain time point is detected as a detecting result. And a first falling edge of the first pulse is produced based on the detecting result. A picture-field flicker phenomenon of an LCD is eliminated through the method.Type: GrantFiled: September 29, 2008Date of Patent: May 8, 2012Assignees: Holtek Semiconductor Inc., Signal Electronic Co., Ltd.Inventors: Ting-Chi Lee, Wen-Liang Liu, Chun-Hsiung Chen
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Patent number: 8170822Abstract: A compensation method devoid of operating voltage calibration, establishing fundamental linearity calibration table and inputting, and detecting the actual operating voltage is disclosed. The compensation method comprises the steps of: a) turning off a switch in a touch sensor system; b) initializing the touch sensor system and measuring a reference frequency outputted from a oscillator in the touch sensor system; c) turning on the switch and measuring a first frequency outputted from the oscillator; and d) deducting the first frequency from the reference frequency so as to obtain a frequency difference; and e) comparing the difference with a predetermined value, and judging based upon the difference if the touch sensor system is touched by a foreign object.Type: GrantFiled: December 31, 2009Date of Patent: May 1, 2012Assignee: Holtek Semiconductor Inc.Inventors: Ting-Yuan Lu, Wen-Liang Liu, Cheng-Mu Wu
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Publication number: 20110240402Abstract: The disclosure provides a unit with a sound isolation/vibration isolation structure, an array employing the same, and a method for fabricating the same. The unit with a sound isolation/vibration isolation structure includes: a hollow frame surrounding an inside space; a film disposed within the inside space, vertically contacting an inside wall of the hollow frame; and a body mass disposed on a top surface of the film. Particularly, the horizontal area of the inside space is larger than the area of the top surface of the film.Type: ApplicationFiled: August 20, 2010Publication date: October 6, 2011Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Jung-Tsung Chou, Ting-Chu Lu, Yu-Tsung Chiu, Horng-Yuan Wen, Hui-Lung Kuo, Ping-Chen Chen, Yi-Chun Liu, Wen-Liang Liu, Sheng-Wen Lin
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Publication number: 20110036827Abstract: The present invention provides a micro-control device, which comprises a RC oscillator for generating a reference clock, a plurality of analog switches coupled to the touch switches for controlling transmission of the transition signal and a plurality of counters for counting time, all of the counters stop counting when one of the counters overflows and content of all counters being read, wherein ON/OFF of the analog switches controlled by a software.Type: ApplicationFiled: August 20, 2010Publication date: February 17, 2011Applicant: HOLTEK SEMICONDUCTOR INC.Inventors: Wen-Liang Liu, Chin-Hung Yang
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Publication number: 20100245132Abstract: A compensation method devoid of operating voltage calibration, establishing fundamental linearity calibration table and inputting, and detecting the actual operating voltage is disclosed. The compensation method comprises the steps of: a) turning off a switch in a touch sensor system; b) initializing the touch sensor system and measuring a reference frequency outputted from a oscillator in the touch sensor system; c) turning on the switch and measuring a first frequency outputted from the oscillator; and d) deducting the first frequency from the reference frequency so as to obtain a frequency difference; and e) comparing the difference with a predetermined value, and judging based upon the difference if the touch sensor system is touched by a foreign object.Type: ApplicationFiled: April 23, 2009Publication date: September 30, 2010Applicant: HOLTEK SEMICONDUCTOR INC.Inventors: TING-YUAN LU, WEN-LIANG LIU, CHENG-MU WU
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Publication number: 20100250180Abstract: A compensation method devoid of operating voltage calibration, establishing fundamental linearity calibration table and inputting, and detecting the actual operating voltage is disclosed. The compensation method comprises the steps of: a) turning off a switch in a touch sensor system; b) initializing the touch sensor system and measuring a reference frequency outputted from a oscillator in the touch sensor system; c) turning on the switch and measuring a first frequency outputted from the oscillator; and d) deducting the first frequency from the reference frequency so as to obtain a frequency difference; and e) comparing the difference with a predetermined value, and judging based upon the difference if the touch sensor system is touched by a foreign object.Type: ApplicationFiled: December 31, 2009Publication date: September 30, 2010Applicant: HOLTEK SEMICONDUCTOR INC.Inventors: TING-YUAN LU, WEN-LIANG LIU, CHENG-MU WU
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Patent number: 7800025Abstract: The present invention provides a micro-control unit a RC oscillator for generating a reference clock, a plurality of touch switches for generating a transition signal indicating one of the touch switches being touched by human beings, a plurality of analog switches coupled to the touch switches for controlling transmission of the transition signal and a plurality of counters for counting time, all of the counters stop counting when one of the counters overflows and content of all counters being read, wherein ON/OFF of the analog switches controlled by a software.Type: GrantFiled: June 4, 2007Date of Patent: September 21, 2010Assignee: Holtek Semiconductor Inc.Inventors: Wen-Liang Liu, Chin-Hung Yang
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Patent number: 7732547Abstract: The present invention provides a graft polymer and compositions comprising a cyclic olefin polymer characterized by having a glass transition temperature of about 60° C. to 250° C. and a molecular weight of about 400 to 300000, and a fluorocarbon alkyl group grafted on the cyclic olefin polymer.Type: GrantFiled: July 12, 2007Date of Patent: June 8, 2010Assignee: Industrial Technology Research InstituteInventors: Jen-Luan Chen, Dar-Ming Chiang, Wen-Liang Liu
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Patent number: 7671669Abstract: A device and a method for reducing input noise providing at least a microcontroller. The microcontroller comprises: at least a noise reduction device, at least an analog switch and at least a signal output unit. The noise reduction device connected to the ground or a voltage is turned on to charge or discharge a stray capacitor existing on a turned off analog switch so that the amount of charge stored in the stray capacitor is zero or a specific value. Thereby, the noise in a touch switch is reduced and the cost of layout on the PCB is saved.Type: GrantFiled: March 3, 2008Date of Patent: March 2, 2010Assignee: Holtek Semiconductor Inc.Inventors: Wen-Liang Liu, Chin-Hung Yang
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Publication number: 20090160835Abstract: A signal processing method is provided and includes the following steps. A first synchronizing signal having a synchronizing frequency and a next expected pulse with an expected rising edge is provided. A second synchronizing signal having a selected frequency being within a frequency range is produced when the synchronizing frequency of the first synchronizing signal is out of a frequency range. A third synchronizing signal having a first pulse with a first rising edge is produced when the synchronizing frequency is within the frequency range, wherein the first rising edge is produced at an expected time point. Whether the next expected pulse appears in a period from the expected time point to a certain time point is detected as a detecting result. And a first falling edge of the first pulse is produced based on the detecting result. A picture-field flicker phenomenon of an LCD is eliminated through the method.Type: ApplicationFiled: September 29, 2008Publication date: June 25, 2009Applicants: HOLTEK SEMICONDUCTOR INC., SIGNAL ELECTRONIC CO., LTD.Inventors: Ting-Chi Lee, Wen-Liang Liu, Chun-Hsiung Chen
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Publication number: 20090121785Abstract: A device and a method for reducing input noise providing at least a microcontroller. The microcontroller comprises: at least a noise reduction device, at least an analog switch and at least a signal output unit. The noise reduction device connected to the ground or a voltage is turned on to charge or discharge a stray capacitor existing on a turned off analog switch so that the amount of charge stored in the stray capacitor is zero or a specific value. Thereby, the noise in a touch switch is reduced and the cost of layout on the PCB is saved.Type: ApplicationFiled: March 3, 2008Publication date: May 14, 2009Applicant: HOLTEK SEMICONDUCTOR INC.Inventors: WEN-LIANG LIU, CHIN-HUNG YANG
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Patent number: 7498699Abstract: An electret and composite formed therewith. The electret includes a polymer, copolymerizing from monomers including VdF as a first monomer and HFP, CTFE, TFE, or combinations thereof as a second monomer.Type: GrantFiled: March 1, 2004Date of Patent: March 3, 2009Assignee: Industrial Technology Research InstituteInventors: Dar-Ming Chiang, Wen-Liang Liu, Jen-Luan Chen, Lon-Cheng Cheng
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Publication number: 20090018269Abstract: The present invention provides a graft polymer and compositions comprising a cyclic olefin polymer characterized by having a glass transition temperature of about 60° C. to 250° C and a molecular weight of about 400 to 300000, and a fluorocarbon alkyl group grafted on the cyclic olefin polymer.Type: ApplicationFiled: July 12, 2007Publication date: January 15, 2009Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Jen-Luan CHEN, Dar-Ming CHIANG, Wen-Liang LIU
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Publication number: 20080303550Abstract: An integrated circuit is provided. The integrated circuit includes N level shifting devices. Each level shifting device receives a first digital signal and a second digital signal, and includes a first level shifter converting a first voltage of the first digital signal into a third voltage and converting a second voltage of the first digital signal into a fourth voltage, and a second level shifter converting a first voltage of the second digital signal into a fifth voltage and converting a second voltage of the second digital signal into a sixth voltage.Type: ApplicationFiled: March 13, 2008Publication date: December 11, 2008Applicant: HOLTEK SEMICONDUCTOR INC.Inventors: Chun-Hsiung CHEN, Chun-Ku LIN, Wen-Liang LIU
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Publication number: 20080173633Abstract: The present invention provides a micro-control unit a RC oscillator for generating a reference clock, a plurality of touch switches for generating a transition signal indicating one of the touch switches being touched by human beings, a plurality of analog switches coupled to the touch switches for controlling transmission of the transition signal and a plurality of counters for counting time, all of the counters stop counting when one of the counters overflows and content of all counters being read, wherein ON/OFF of the analog switches controlled by a software.Type: ApplicationFiled: June 4, 2007Publication date: July 24, 2008Applicant: HOLTEK SEMICONDUCTOR INC.Inventors: Wen-Liang Liu, Chin-Hung Yang
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Publication number: 20080157683Abstract: A vacuum fluorescent display (VFD) and a filament-driving method are provided. Two sub-dc voltages having peaks respectively interlaced with each other on the waveform thereof are used to drive the filament. A driving circuit is integrated in the integrated circuit of a VFD driver, a VFD controller or a VFD MCU. The VFD is able to operate without utilizing a transformer.Type: ApplicationFiled: August 21, 2007Publication date: July 3, 2008Applicant: HOLTEK SEMICONDUCTOR INC.Inventors: Chun-Hsiung Chen, Wen-Liang Liu
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Patent number: 7317052Abstract: A fluoropolymer blend with high ionic conductivity that can be applied in electroactive polymer composite includes following components: PVDF-g-SPS (styrene-grafted and sulfonated PVDF); PVDF; and hydrocarbon- or fluoro-elastomer. PVDF-g-PS(styrene-grafted PVDF) ? PVDF and hydrocarbon- or fluoro-elastomer are mixed with specific proportion and being dissolved in an aprotic solvent ? the solution is then cast film on a substrate followed by sulfonation to give the aforementioned compound membrane. The obtained compound membrane has excellent properties, such as thermal stability, acid-alkali resistance, good mechanical performance, excellent flexibility, and capability for processing appropriate cross-link for further enhancing the mechanical performance of this membrane.Type: GrantFiled: November 29, 2004Date of Patent: January 8, 2008Assignee: Industrial Technology Research InstituteInventors: Jen-Luan Chen, Jhi-Hsien Huang, Wen-Liang Liu, Chih-Yang Yeh, Tsung-Lung Yang, Lon-Cheng Cheng