Patents by Inventor Chien-Wen Chen

Chien-Wen Chen 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).

  • Publication number: 20210081509
    Abstract: Systems, methods, and devices are described herein for integrated circuit (IC) layout validation. A plurality of IC patterns are collected which include a first set of patterns capable of being manufactured and a second set of patterns incapable of being manufactured. A machine learning model is trained using the plurality of IC patterns. The machine learning model generates a prediction model for validating IC layouts. The prediction model receives data including a set of test patterns comprising scanning electron microscope (SEM) images of IC patterns. Design violations associated with an IC layout are determined based on the SEM images and the plurality of IC patterns. A summary of the design violations is provided for further characterization of the IC layout.
    Type: Application
    Filed: September 16, 2019
    Publication date: March 18, 2021
    Inventors: Rachid Salik, Chin-Chang Hsu, Cheng-Chi Wu, Chien-Wen Chen, Wen-Ju Yang
  • Patent number: 10938394
    Abstract: A motor driving device includes a first hysteresis comparator, a second hysteresis comparator, a logic circuit, a control unit, and an inverter circuit. The logic circuit receives a start signal or a start completion signal to output the first output signal as a commutation signal according to the start signal, or to output the second output signal as the commutation signal according to the start completion signal, clamps the second output signal by the first output signal, stops outputting the commutation signal after the potential state of the commutation signal is changed, and unclamps the second output signal with the first output signal and outputs the commutation signal in response to a difference voltage between the first input signal and the second input signal being greater than a positive value of the first hysteresis voltage or less than a negative value of the first hysteresis voltage.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: March 2, 2021
    Assignee: REALTEK SEMICONDUCTOR CORP.
    Inventor: Chien-Wen Chen
  • Publication number: 20210028165
    Abstract: The present invention provides a capacitor structure including a metal oxide semiconductor (MOS) capacitor and a metal oxide metal (MOM) capacitor. A gate electrode, a source electrode and a drain electrode of the MOS capacitor have a first finger-shaped structure implemented by a first metal layer. The MOM capacitor comprises a second finger-shaped structure implemented by a second metal layer. The second metal layer is adjacent to the first metal layer in a vertical direction.
    Type: Application
    Filed: June 19, 2020
    Publication date: January 28, 2021
    Inventors: Sz-Ying Yu, Jui-Yu Chang, Chien-Wen Chen
  • Publication number: 20210021271
    Abstract: A motor driving device includes a first hysteresis comparator, a second hysteresis comparator, a logic circuit, a control unit, and an inverter circuit. The logic circuit receives a start signal or a start completion signal to output the first output signal as a commutation signal according to the start signal, or to output the second output signal as the commutation signal according to the start completion signal, clamps the second output signal by the first output signal, stops outputting the commutation signal after the potential state of the commutation signal is changed, and unclamps the second output signal with the first output signal and outputs the commutation signal in response to a difference voltage between the first input signal and the second input signal being greater than a positive value of the first hysteresis voltage or less than a negative value of the first hysteresis voltage.
    Type: Application
    Filed: March 4, 2020
    Publication date: January 21, 2021
    Inventor: CHIEN-WEN CHEN
  • Publication number: 20200395927
    Abstract: A delay circuit includes an inverting receiving circuit, a reference point generating circuit, a first buffer gate and a first inverter. An inverting receiving circuit includes a first transistor and a first switching circuit. The reference point generating circuit includes a compensation resistor, a capacitor element, and a first current source. In response to the input signal being at a first potential, a voltage of the output node starts to decrease from a voltage reference point. In response to at least one of a manufacturing process, the first reference voltage, and a temperature being changed, the compensation resistor is configured to correct the voltage reference point.
    Type: Application
    Filed: March 4, 2020
    Publication date: December 17, 2020
    Inventor: CHIEN-WEN CHEN
  • Patent number: 10862468
    Abstract: A delay circuit includes an inverting receiving circuit, a reference point generating circuit, a first buffer gate and a first inverter. An inverting receiving circuit includes a first transistor and a first switching circuit. The reference point generating circuit includes a compensation resistor, a capacitor element, and a first current source. In response to the input signal being at a first potential, a voltage of the output node starts to decrease from a voltage reference point. In response to at least one of a manufacturing process, the first reference voltage, and a temperature being changed, the compensation resistor is configured to correct the voltage reference point.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: December 8, 2020
    Assignee: REALTEK SEMICONDUCTOR CORP.
    Inventor: Chien-Wen Chen
  • Patent number: 10826503
    Abstract: A phase-locked loop circuit includes a delay phase-locked loop and a sub-sampling phase-locked loop. The delay phase-locked loop phase locks a first reference clock and a second reference clock to an input clock, and includes a phase correction circuit, an integrator, a first sub-sampling phase detector, and a first charge pump. The sub-sampling phase-locked loop is configured to generate an output clock with a predetermined phase-locked loop frequency, and the output clock is phase-locked to the first reference clock, the sub-sampling phase-locked loop includes a second sub-sampling phase detector, a second charge pump, a phase frequency detecting circuit, a voltage controlled oscillator and a first frequency divider. The first sub-sampling phase detector and the second sub-sampling phase detector have a symmetric circuit structure, and a first charge pump circuit and a second charge pump circuit have a symmetric circuit structure.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: November 3, 2020
    Assignee: REALTEK SEMICONDUCTOR CORP.
    Inventor: Chien-Wen Chen
  • Publication number: 20200333908
    Abstract: A touch display device includes a printed circuit board and a cover. The printed circuit board has a top surface, a bottom surface and soldering points. The printed circuit board includes a first printed circuit, a light element and a second printed circuit. A part of the first printed circuit is on the top surface or the bottom surface and connected with the corresponding soldering point. The light emitting element is on the top surface and electrically connected to the first printed circuit. On the top surface, the second printed circuit does not overlap with the first printed circuit. The cover covers the printed circuit board. The cover has light transmission areas which are aligned with the light elements. The second printed circuit is configured to provide a capacitance value coupled to a capacitive sensing element coupled between the second printed circuit and the cover.
    Type: Application
    Filed: April 7, 2020
    Publication date: October 22, 2020
    Inventors: Chien-Wen CHEN, Chen-Chen OU YANG, Kai-Chieh YANG
  • Patent number: 10810121
    Abstract: A data merge method for a rewritable non-volatile memory module including a plurality of physical units is provided according to an exemplary embodiment of the disclosure. The method includes: obtaining a first logical distance value between a first physical unit and a second physical unit among the physical units, and the first logical distance value reflects a logical dispersion degree between at least one first logical unit mapped by the first physical unit and at least one second logical unit mapped by the second physical unit; and performing a data merge operation according to the first logical distance value, so as to copy valid from a source node to a recycling node.
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: October 20, 2020
    Assignee: PHISON ELECTRONICS CORP.
    Inventors: Chien-Wen Chen, Ting-Wei Lin
  • Patent number: 10742183
    Abstract: A processing device for position sensing includes a plurality of light sensors, a signal processing unit, a current mirror unit and a transforming unit. The light sensors are spaced apart from each other and sense a light field to generate a plurality of position sensing current signals. The signal processing unit receives the position sensing current signals and provides a load isolation, so as to generate a first current signal and a second current signal. The second current signal is transmitted to a node. The first and second current signals respectively correspond to a first group and a second group of light sensors. The current mirror unit mirrors the first current signal to a third current signal. The third current is transmitted to the node. The transforming unit transforms a differential current signal formed by the second and third current signals on the node to a voltage signal.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: August 11, 2020
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chien-Wen Chen, Chih-Cheng Hsieh, You-Shin Chen
  • Patent number: 10700409
    Abstract: A back cover includes a metal body having a first side, a second side, and a groove that is formed at the first side. The metal body further has a first radiator, a second radiator, and a ground radiator. The first radiator is disposed in the groove, and has a main portion and a support portion that cooperatively form a T-shape. The main portion includes a feeding end adjacent to a closed end of the groove. The second radiator is adjacently connected to the groove and is defined by the first and second sides, and an edge of the groove. The ground radiator is formed by a portion of the metal body excluding the first and second radiators. The second radiator and the support portion are connected to the ground radiator. The first and second radiators, and the ground radiator are serve as an antenna structure.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: June 30, 2020
    Assignee: Acer Incorporated
    Inventors: Shih-Ting Huang, Ching-Chi Lin, Chien-Wen Chen, Chuan-Chun Wang
  • Publication number: 20200204128
    Abstract: A processing device for position sensing includes a plurality of light sensors, a signal processing unit, a current mirror unit and a transforming unit. The light sensors are spaced apart from each other and sense a light field to generate a plurality of position sensing current signals. The signal processing unit receives the position sensing current signals and provides a load isolation, so as to generate a first current signal and a second current signal. The second current signal is transmitted to a node. The first and second current signals respectively correspond to a first group and a second group of light sensors. The current mirror unit mirrors the first current signal to a third current signal. The third current is transmitted to the node. The transforming unit transforms a differential current signal formed by the second and third current signals on the node to a voltage signal.
    Type: Application
    Filed: December 21, 2018
    Publication date: June 25, 2020
    Inventors: Chien-Wen CHEN, Chih-Cheng HSIEH, You-Shin CHEN
  • Patent number: 10693446
    Abstract: Clock adjustment circuits and clock adjustment methods are provided. The clock adjustment circuit is configured to generate an output clock and includes a phase interpolator, a logic circuit, and an integrator. The phase interpolator is configured to generate by interpolation an intermediate clock according to a first reference clock, a second reference clock, and a control signal. The frequencies of the first reference clock, the second reference clock and the intermediate clock are substantially the same. The logic circuit is coupled to the phase interpolator and configured to generate the output clock according to the intermediate clock and one of the first reference clock and the second reference clock. The integrator is coupled to the phase interpolator and the logic circuit and configured to generate the control signal according to the output clock. The control signal varies with an average based on a duty cycle of the output clock.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: June 23, 2020
    Assignee: REALTEK SEMICONDUCTOR CORPORATION
    Inventor: Chien-Wen Chen
  • Publication number: 20200186136
    Abstract: Clock adjustment circuits and clock adjustment methods are provided. The clock adjustment circuit is configured to generate an output clock and includes a phase interpolator, a logic circuit, and an integrator. The phase interpolator is configured to generate by interpolation an intermediate clock according to a first reference clock, a second reference clock, and a control signal. The frequencies of the first reference clock, the second reference clock and the intermediate clock are substantially the same. The logic circuit is coupled to the phase interpolator and configured to generate the output clock according to the intermediate clock and one of the first reference clock and the second reference clock. The integrator is coupled to the phase interpolator and the logic circuit and configured to generate the control signal according to the output clock. The control signal varies with an average based on a duty cycle of the output clock.
    Type: Application
    Filed: February 14, 2020
    Publication date: June 11, 2020
    Inventor: CHIEN-WEN CHEN
  • Patent number: 10673427
    Abstract: The present invention discloses a circuit capable of protecting low-voltage devices. The circuit includes: a pin configured to receive a signal of an external device; a control voltage generating circuit configured to generate a first control voltage according to a supply voltage to turn on a protected device when the supply voltage is at a high level, and generate a second control voltage according to a voltage of the pin to turn on the protected device when the supply voltage is at a low level; and the protected device configured to be turned on according to one of the first and the second control voltages and thereby electrically couple the pin with an internal circuit, in which the difference between the voltage of the pin and each of the first and the second control voltages is within a maximum withstanding voltage of the protected device.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: June 2, 2020
    Assignee: REALTEK SEMICONDUCTOR CORPORATION
    Inventors: Chun-Ming Chou, Ming-Hui Tung, Chien-Wen Chen, Tsung-Yen Liu
  • Publication number: 20200133844
    Abstract: A data merge method for a rewritable non-volatile memory module including a plurality of physical units is provided according to an exemplary embodiment of the disclosure. The method includes: obtaining a first logical distance value between a first physical unit and a second physical unit among the physical units, and the first logical distance value reflects a logical dispersion degree between at least one first logical unit mapped by the first physical unit and at least one second logical unit mapped by the second physical unit; and performing a data merge operation according to the first logical distance value, so as to copy valid from a source node to a recycling node.
    Type: Application
    Filed: January 4, 2019
    Publication date: April 30, 2020
    Applicant: PHISON ELECTRONICS CORP.
    Inventors: Chien-Wen Chen, Ting-Wei Lin
  • Publication number: 20200106155
    Abstract: A back cover includes a metal body having a first side, a second side, and a groove that is formed at the first side. The metal body further has a first radiator, a second radiator, and a ground radiator. The first radiator is disposed in the groove, and has a main portion and a support portion that cooperatively form a T-shape. The main portion includes a feeding end adjacent to a closed end of the groove. The second radiator is adjacently connected to the groove and is defined by the first and second sides, and an edge of the groove. The ground radiator is formed by a portion of the metal body excluding the first and second radiators. The second radiator and the support portion are connected to the ground radiator. The first and second radiators, and the ground radiator are serve as an antenna structure.
    Type: Application
    Filed: December 17, 2018
    Publication date: April 2, 2020
    Applicant: Acer Incorporated
    Inventors: Shih-Ting Huang, Ching-Chi Lin, Chien-Wen Chen, Chuan-Chun Wang
  • Publication number: 20190386649
    Abstract: Clock adjustment circuits and clock adjustment methods are provided. The clock adjustment circuit is configured to adjust an input clock to generate an output clock and includes a low-pass filter, a direct current (DC) control circuit, a DC offset amplifier, an amplifier, and an integrator. The low-pass filter filters the input clock to generate a filtered signal. The DC control circuit adjusts a DC voltage based on a control signal. The DC offset amplifier generates an intermediate clock based on the filtered signal and the DC voltage. The amplifier generates the output clock based on the intermediate clock. The integrator generates the control signal based on the output clock. The control signal varies with an average based on the duty cycle of the output clock.
    Type: Application
    Filed: April 11, 2019
    Publication date: December 19, 2019
    Inventor: CHIEN-WEN CHEN
  • Patent number: 10490902
    Abstract: A mobile device includes a metal mechanism element, a ground plane, a feeding element, a parasitic element, and a dielectric substrate. The metal mechanism element has a slot. The ground plane is coupled to the metal mechanism element. The feeding element is coupled to a signal source. The feeding element extends across the slot. The parasitic element is coupled to the ground plane. The parasitic element extends across the slot. The ground plane, the feeding element, and the parasitic element are disposed on the dielectric substrate. An antenna structure is formed by the feeding element, the parasitic element, and the slot of the metal mechanism element.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: November 26, 2019
    Assignee: ACER INCORPORATED
    Inventors: Ming-Ching Yen, Kun-Sheng Chang, Chien-Wen Chen, Ching-Chi Lin
  • Publication number: 20190296732
    Abstract: The present invention discloses a circuit capable of protecting low-voltage devices. The circuit includes: a pin configured to receive a signal of an external device; a control voltage generating circuit configured to generate a first control voltage according to a supply voltage to turn on a protected device when the supply voltage is at a high level, and generate a second control voltage according to a voltage of the pin to turn on the protected device when the supply voltage is at a low level; and the protected device configured to be turned on according to one of the first and the second control voltages and thereby electrically couple the pin with an internal circuit, in which the difference between the voltage of the pin and each of the first and the second control voltages is within a maximum withstanding voltage of the protected device.
    Type: Application
    Filed: March 19, 2019
    Publication date: September 26, 2019
    Inventors: CHUN-MING CHOU, MING-HUI TUNG, CHIEN-WEN CHEN, TSUNG-YEN LIU