Patents by Inventor Jen-Chieh Liu
Jen-Chieh 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: 20220286118Abstract: A random number generator that includes control circuit, an oscillation circuit, an oscillation detection circuit and a latch circuit is introduced. The control circuit sweeps a configuration of a bias control signal among a plurality of configurations. The oscillation circuit generates an oscillation signal based on the configuration of the bias control signal. The oscillation detection circuit detects an onset of the oscillation signal, and outputs a lock signal. The latch circuit latches the oscillation signal according to a trigger signal to output a random number, wherein the trigger signal is asserted after the lock signal is outputted, and the configuration of bias control signal is locked after the lock signal is outputted. A method for generating a random number and an operation method of a random number generator are also introduced.Type: ApplicationFiled: May 3, 2022Publication date: September 8, 2022Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Win-San Khwa, Jui-Jen Wu, Jen-Chieh Liu, Elia Ambrosi, Xinyu BAO, Meng-Fan Chang
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Patent number: 11349462Abstract: A random number generator that includes control circuit, an oscillation circuit, a dynamic header circuit, an oscillation detection circuit and a latch circuit is introduced. The control circuit sweeps a configuration of a bias control signal among a plurality of configurations. The dynamic header circuit generates a bias voltage based on the configuration of the bias control signal. The oscillation circuit generates an oscillation signal based on the bias voltage. The oscillation detection circuit detects an onset of the oscillation signal, and outputs a lock signal. The latch circuit latches the oscillation signal according to a trigger signal to output a random number, wherein the trigger signal is asserted after the lock signal is outputted, and the configuration of bias control signal is locked after the lock signal is outputted. A method for generating a random number and an operation method of a random number generator are also introduced.Type: GrantFiled: July 8, 2021Date of Patent: May 31, 2022Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Win-San Khwa, Jui-Jen Wu, Jen-Chieh Liu, Elia Ambrosi, Xinyu Bao, Meng-Fan Chang
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Patent number: 11087708Abstract: The present invention provides a method for transmitting data from a timing controller to a source driver, wherein the method includes the steps of: applying a plurality of data rates to a discrete data rate setting; and transmitting image data of a plurality of frames by using a plurality of modulated data rates, respectively; wherein the plurality of modulated data rates are generated by performing spread-spectrum clocking (SSC) upon the plurality of data rates, respectively; and for each of the frames, its corresponding image data is transmitting by using only one of the modulated data rates.Type: GrantFiled: June 5, 2019Date of Patent: August 10, 2021Assignee: HIMAX TECHNOLOGIES LIMITEDInventors: Mong-Hua Tu, Peng-Chi Chen, Chih-Hsiang Lin, Yin-Ho Chiang, Jen-Chieh Liu, Shih-Po Chen, Cheng-Yu Shih, Chien-Lung Cho, Yi-Ping Tu
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Patent number: 10902317Abstract: A neural network processing system includes at least one synapse and a neuron circuit. The synapse receives an input signal and has an external weighted value and an internal weighted value, and the internal weighted value has a variation caused by an external stimulus. When the variation of the internal weighted value accumulates to a threshold value, the external weighted value varies and the input signal is multiplied by the external weighted value of the synapse to generate a weighted signal. A neuron circuit is connected with the synapse to receive the weighted signal transmitted by the synapse, and calculates and outputs the weighted signal. The present invention can simultaneously accelerate the prediction and learning functions of the deep learning and realize a hardware neural network with high precision and real-time learning.Type: GrantFiled: July 13, 2017Date of Patent: January 26, 2021Assignee: NATIONAL CHIAO TUNG UNIVERSITYInventors: Tuo-Hung Hou, Chih-Cheng Chang, Jen-Chieh Liu
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Publication number: 20200388237Abstract: The present invention provides a method for transmitting data from a timing controller to a source driver, wherein the method includes the steps of: applying a plurality of data rates to a discrete data rate setting; and transmitting image data of a plurality of frames by using a plurality of modulated data rates, respectively; wherein the plurality of modulated data rates are generated by performing spread-spectrum clocking (SSC) upon the plurality of data rates, respectively; and for each of the frames, its corresponding image data is transmitting by using only one of the modulated data rates.Type: ApplicationFiled: June 5, 2019Publication date: December 10, 2020Inventors: Mong-Hua Tu, Peng-Chi Chen, Chih-Hsiang Lin, Yin-Ho Chiang, Jen-Chieh Liu, Shih-Po Chen, Cheng-Yu Shih, Chien-Lung Cho, Yi-Ping Tu
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Publication number: 20180330236Abstract: A neural network processing system includes at least one synapse and a neuron circuit. The synapse receives an input signal and has an external weighted value and an internal weighted value, and the internal weighted value has a variation caused by an external stimulus. When the variation of the internal weighted value accumulates to a threshold value, the external weighted value varies and the input signal is multiplied by the external weighted value of the synapse to generate a weighted signal. A neuron circuit is connected with the synapse to receive the weighted signal transmitted by the synapse, and calculates and outputs the weighted signal. The present invention can simultaneously accelerate the prediction and learning functions of the deep learning and realize a hardware neural network with high precision and real-time learning.Type: ApplicationFiled: July 13, 2017Publication date: November 15, 2018Inventors: Tuo-Hung HOU, Chih-Cheng CHANG, Jen-Chieh LIU
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Patent number: 9761198Abstract: The present invention provides a driving circuit for driving a color display to display black-and-white/grayscale images and comprises a data conversion circuit and a driver. The data conversion circuit receives input data transmitted by a microprocessor. The format of the input data is a black-and-white/grayscale format. The data conversion circuit converts the input data for producing output data. The format of the output data is a color format. The driver receives the output data and drives the color display to display the black-and-white/grayscale image. The driving circuit will convert the input data transmitted by the microprocessor with limited transmission capability and produce color output data for driving the color display to display the black-and-white/grayscale image. Accordingly, by using the driving circuit according to the present invention, an electronic device with limited transmission capability can work with the color display to display black-and-white/grayscale images.Type: GrantFiled: February 26, 2015Date of Patent: September 12, 2017Assignee: Sitronix Technology Corp.Inventors: Jen-Fu Huang, Jen-Chieh Liu, I-Ting Chen
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Patent number: 9729742Abstract: A flatbed scanning device of a paper feeding scanning equipment includes a device casing and a scanning module. The device casing includes a first glass plate, and a second glass plate spaced apart from the first glass plate and having a bottom surface. The scanning module is disposed in the device casing, and including a module body, a scanning assembly disposed in the module body, and at least one contact assembly disposed on the module body. When the scanning module is in an initial position, the scanning assembly is located below the first glass plate, and the at least one contact assembly abuttingly contacts the bottom surface of the second glass plate.Type: GrantFiled: March 11, 2016Date of Patent: August 8, 2017Assignee: Lite-On Technology Corp.Inventors: Jen-Chieh Liu, Ta-Yi Lee, Hsin-Ju Chen, Chun-Liang Liu
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Publication number: 20170118354Abstract: A flatbed scanning device of a paper feeding scanning equipment includes a device casing and a scanning module. The device casing includes a first glass plate, and a second glass plate spaced apart from the first glass plate and having a bottom surface. The scanning module is disposed in the device casing, and including a module body, a scanning assembly disposed in the module body, and at least one contact assembly disposed on the module body. When the scanning module is in an initial position, the scanning assembly is located below the first glass plate, and the at least one contact assembly abuttingly contacts the bottom surface of the second glass plate.Type: ApplicationFiled: March 11, 2016Publication date: April 27, 2017Inventors: JEN-CHIEH LIU, TA-YI LEE, HSIN-JU CHEN, CHUN-LIANG LIU
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Publication number: 20150279315Abstract: The present invention provides a driving circuit for driving a color display to display black-and-white/grayscale images and comprises a data conversion circuit and a driver. The data conversion circuit receives input data transmitted by a microprocessor. The format of the input data is a black-and-white/grayscale format. The data conversion circuit converts the input data for producing output data. The format of the output data is a color format. The driver receives the output data and drives the color display to display the black-and-white/grayscale image. The driving circuit will convert the input data transmitted by the microprocessor with limited transmission capability and produce color output data for driving the color display to display the black-and-white/grayscale image. Accordingly, by using the driving circuit according to the present invention, an electronic device with limited transmission capability can work with the color display to display black-and-white/grayscale images.Type: ApplicationFiled: February 26, 2015Publication date: October 1, 2015Inventors: JEN-FU HUANG, JEN-CHIEH LIU, I-TING CHEN
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Patent number: 9024693Abstract: A crystal-less clock generator (CLCG) and an operation method thereof are provided. The CLCG includes a first oscillation circuit, a second oscillation circuit, and a control circuit. The first oscillation circuit is controlled by a control signal for generating an output clock signal of the CLCG. The second oscillation circuit generates a reference clock signal. The control circuit is coupled to the first oscillation circuit for receiving the output clock signal and coupled to the second oscillation circuit for receiving the reference clock signal. The control circuit is used to generate the control signal for the first oscillation circuit according to the relationship between the output clock signal and the reference clock signal.Type: GrantFiled: September 13, 2013Date of Patent: May 5, 2015Assignee: Industrial Technology Research InstituteInventors: Jen-Chieh Liu, Chi-Yang Chang, Yo-Hao Tu, Kuo-Hsing Cheng
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Publication number: 20140361840Abstract: A crystal-less clock generator (CLCG) and an operation method thereof are provided. The CLCG includes a first oscillation circuit, a second oscillation circuit, and a control circuit. The first oscillation circuit is controlled by a control signal for generating an output clock signal of the CLCG. The second oscillation circuit generates a reference clock signal. The control circuit is coupled to the first oscillation circuit for receiving the output clock signal and coupled to the second oscillation circuit for receiving the reference clock signal. The control circuit is used to generate the control signal for the first oscillation circuit according to the relationship between the output clock signal and the reference clock signal.Type: ApplicationFiled: September 13, 2013Publication date: December 11, 2014Applicant: Industrial Technology Research InstituteInventors: Jen-Chieh Liu, Chi-Yang Chang, Yo-Hao Tu, Kuo-Hsing Cheng
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Patent number: 8125286Abstract: A digitally controlled oscillator (DCO) includes a pulse generator for generating a pulse signal upon an edge of a trigger signal, and at least one delay circuit coupled to delay the pulse signal generated by the pulse generator. The pulse generator is coupled to receive one of the delayed pulse signal from the at least one delay circuit and an enable signal as the trigger signal. A digitally controlled varactor (DCV) includes a transistor having a gate, a source, a drain, and a substrate, wherein at least one of the gate, the source, the drain, and the substrate is coupled to receive one of two or more voltages, wherein at least one of the two or more voltages is not a power supply voltage or ground.Type: GrantFiled: September 21, 2010Date of Patent: February 28, 2012Assignee: Industrial Technology Research InstituteInventors: Hong-Yi Huang, Jen-Chieh Liu, Yuan-Hua Chu
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Publication number: 20110068841Abstract: A digitally controlled oscillator (DCO) includes a pulse generator for generating a pulse signal upon an edge of a trigger signal, and at least one delay circuit coupled to delay the pulse signal generated by the pulse generator. The pulse generator is coupled to receive one of the delayed pulse signal from the at least one delay circuit and an enable signal as the trigger signal. A digitally controlled varactor (DCV) includes a transistor having a gate, a source, a drain, and a substrate, wherein at least one of the gate, the source, the drain, and the substrate is coupled to receive one of two or more voltages, wherein at least one of the two or more voltages is not a power supply voltage or ground.Type: ApplicationFiled: September 21, 2010Publication date: March 24, 2011Inventors: Hong-Yi Huang, Jen-Chieh Liu, Yuan-Hua Chu
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Patent number: 7859343Abstract: A digitally controlled oscillator (DCO) includes a pulse generator for generating a pulse signal upon an edge of a trigger signal, and at least one delay circuit coupled to delay the pulse signal generated by the pulse generator. The pulse generator is coupled to receive one of the delayed pulse signal from the at least one delay circuit and an enable signal as the trigger signal. A digitally controlled varactor (DCV) includes a transistor having a gate, a source, a drain, and a substrate, wherein at least one of the gate, the source, the drain, and the substrate is coupled to receive one of two or more voltages, wherein at least one of the two or more voltages is not a power supply voltage or ground.Type: GrantFiled: November 13, 2006Date of Patent: December 28, 2010Assignee: Industrial Technology Research InstituteInventors: Hong-Yi Huang, Jen-Chieh Liu, Yuan-Hua Chu
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Publication number: 20100236530Abstract: A fuel saving and waste gas purifying device of an internal combustion engine having a communicating tube which includes an input end, an output end and an intake end communicating with one another, the input end and the output end are connected to a fuel input tube of the internal combustion engine, a one-way valve is provided in the intake end of the communicating tube; a negative ion generator is communicated between the communicating tube and the intake end, a power source of a power machine is connected with the negative ion generator for generating a large amount of negative ions in the intake end of the communicating tube; by one-way putting out the air with the negative ions into the communicating tube between the input end and the output end, the negative ions are mixed with the fuel in the communicating tube to form mixed gas in advance; when the mixed gas enters the engine mixes once more with the intake gas of the engine per se, the fuel will mix with the air more completely, this can increase theType: ApplicationFiled: December 21, 2007Publication date: September 23, 2010Inventor: Jen Chieh Liu
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Patent number: 7669849Abstract: A follower roller mounting mechanism for a paper feeding apparatus is provided, which has at least one follower roller and a shaft passing through the follower roller. The follower roller mounting mechanism includes a base having a trough and a hole on a top surface thereof. The trough has a back wall, a bottom wall, and two opposite lateral walls. The bottom wall and the back wall are adjacent to each other. Each of the lateral walls has a sliding slot. The shaft is disposed inside the base passing through the trough via the sliding slot for making the follower roller protruding from the top surface through the hole. An elastic element is disposed between the shaft and the back wall for generating elastic force, pushing the shaft sliding along the sliding slot, and making the follower roller to constantly rise above the top surface through the hole.Type: GrantFiled: November 6, 2006Date of Patent: March 2, 2010Assignee: Lite-On Technology CorporationInventors: Chun-Liang Liu, Jen-Chieh Liu
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Patent number: 7594649Abstract: A paper grabbing assembly is provided. The paper grabbing assembly includes: a base with a pivot seat disposed thereon, wherein the shaft is pivotally disposed on the pivot seat; a bearing plate, pivotally disposed on the base corresponding to the paper grabbing roller; a driven member, connected to one end of the shaft; a cam member and an elastic member, rotatablely fitted on the shaft. The elastic member frictionally contacts the cam member and the driven member respectively, such that the driven member rotates the cam member via the elastic member, for pressing the bearing plate away from the paper grabbing roller. Further, when the cam member is stopped, the elastic member slides relative to the cam member, such that the driven member may not be affected by the cam member, but continue driving the paper grabbing roller to rotate.Type: GrantFiled: December 15, 2006Date of Patent: September 29, 2009Assignee: Lite-On Technology CorporationInventors: Jen-Chieh Liu, Chun-Liang Liu
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Patent number: 7580165Abstract: A paper pressing device disposed on one side of a paper track of a sheet feed scanner, corresponding to a scanning module on the other side of the paper track is provided. The paper pressing device includes two pivot seats, a pressing block, and an elastic element. The two pivot seats are respectively disposed at two lateral edges of the paper track. The pressing block is located across and above the paper track, and is pivotally disposed between the two pivot seats for being rotated and slid. The elastic element, pressing against the pressing block, is used to provide a normal force to push the pressing block to move linearly and rotate. By adjusting the position and angle of the pressing block, the paper is flattened onto the scanning module.Type: GrantFiled: July 20, 2006Date of Patent: August 25, 2009Assignee: Lite-On Technology CorporationInventors: Jen-Chieh Liu, Chun-Liang Liu
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Patent number: 7528996Abstract: A scanning apparatus includes a body, a transparent plate, a scanning module, and a color reference slice. A paper-feeding track is formed within the body, and a scanning window is formed at a side wall of the paper-feeding track. A coupling groove is formed at an edge of the scanning window. Both the transparent plate and the color reference slice have an edge being inserted into the coupling groove, such that the transparent plate covers the scanning window while the color reference slice leans against a side surface of the transparent plate facing the paper-feeding track. The scanning module is disposed within the body corresponding to the scanning window, such that a paper to be scanned and the color reference slice are located in the same plane, and the color reference slice and the paper are scanned under the same optical conditions.Type: GrantFiled: August 23, 2006Date of Patent: May 5, 2009Assignee: Lite-On Technology CorporationInventors: Chun-Liang Liu, Jen-Chieh Liu