Patents by Inventor Chih-Yuan Hsu

Chih-Yuan Hsu 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: 9882418
    Abstract: A switching mode charger capable of performing mode switching to adjust and output charging current for a battery or driving current for an external circuit element includes an input terminal, an output terminal, a Buck-Boost converter, and a controller. The Buck-Boost converter generates a voltage at the input terminal according to a voltage at the output terminal or generates a voltage at the output terminal according to a voltage at the input terminal. The controller dynamically selects an operation mode from a plurality of operation modes as an operation mode of the Buck-Boost converter according to at least one of the voltage change and the current change that are associated with the Buck-Boost converter, wherein the Buck-Boost converter dynamically performs mode switching according to the operation mode selected by the controller so as to adjust and output the charging current or the driving current.
    Type: Grant
    Filed: April 22, 2014
    Date of Patent: January 30, 2018
    Assignee: MediaTek Inc.
    Inventor: Chih-Yuan Hsu
  • Patent number: 9859737
    Abstract: A method and an apparatus for performing charging port detection control are provided, where the method is applied to an electronic device, a communication port of the electronic device has a functionality of obtaining power from an external power source for the electronic device, and a power path switching unit of the electronic device is arranged to control electrical connection between a system within the electronic device and a battery of the electronic device. The method may include the steps of: performing charging port detection; and control operation(s) according to the charging port detection. For example, the method may include: controlling the power path switching unit to have different configuration according to the charging port detection in order to charge the battery with different charging profiles; and detecting the system voltage level during charging for switching from the constant current mode to the constant voltage mode.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: January 2, 2018
    Assignee: MediaTek Inc.
    Inventors: Pi-Fen Chen, Chih-Yuan Hsu, Hung-I Wang
  • Patent number: 9832459
    Abstract: An output circuit includes a level adjustment circuit and a determination circuit. The output circuit is employed for generating an output to an output terminal of the output circuit, where the output terminal is coupled to a connecting port. The level adjustment circuit is coupled to the output terminal and is employed for generating at least one adjusted signal according to a first voltage signal at the output terminal in a first period and a second voltage signal at the output terminal in a second period. The determination circuit is coupled to the level adjustment circuit and is employed for generating a determination signal according to the at least one adjusted signal, wherein the determination signal indicates whether a load is connected to the connecting port.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: November 28, 2017
    Assignee: ALI Corporation
    Inventors: Chih-Yuan Hsu, Yu-Shin Wang
  • Publication number: 20170310122
    Abstract: The present invention provides a charging apparatus, a charging control circuit, and a charging control method. The charging apparatus includes a power conversion circuit for generating a DC output voltage and charging a battery by a DC output current, and a charging control circuit for controlling the power conversion circuit. When the DC output voltage or the battery voltage rises to a first reference threshold voltage, the DC output current is adjusted downward by a current down step, and when the DC output voltage or the battery voltage falls to a second reference threshold voltage, the DC output current is adjusted upward by a current up step.
    Type: Application
    Filed: December 25, 2016
    Publication date: October 26, 2017
    Inventors: Wei-Hsu Chang, Ta-Yung Yang, Chih-Yuan Hsu
  • Patent number: 9695299
    Abstract: A phosphorous-containing compound is represented by Formula (I): wherein n is an integer ranging from 1 to 4; R1 represents hydrogen or a linear or branched C1-C4 alkyl group, and a plurality of R1s are the same or different when n is larger than 1; R2 represents hydrogen, or wherein Ep is an epoxy resin moiety; or represents wherein Ar represents a linear or branched C1-C12 alkyl group or a C6-C12 aryl group; and R3 represents hydrogen or methyl.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: July 4, 2017
    Assignee: National Tsing Hua University
    Inventors: Ying-Ling Liu, Chih-Yuan Hsu
  • Publication number: 20170183479
    Abstract: A phosphorous-containing compound is represented by Formula (I): wherein n is an integer ranging from 1 to 4; R1 represents hydrogen or a linear or branched C1-C4 alkyl group, and a plurality of R1s are the same or different when n is larger than 1; R2 represents hydrogen, wherein Ep is an epoxy resin moiety; or represents wherein Ar represents a linear or branched C1-C12 alkyl group or a C6-C12 aryl group; and R3 represents hydrogen or methyl.
    Type: Application
    Filed: April 22, 2016
    Publication date: June 29, 2017
    Applicant: National Tsing Hua University
    Inventors: Ying-Ling LIU, Chih-Yuan HSU
  • Patent number: 9647451
    Abstract: A discharge circuit includes a discharge switch trigger unit, a discharge switch unit and a discharge resistor unit. The discharge switch unit is coupled connected to the discharge switch trigger unit. The discharge resistor unit is coupled connected to the discharge switch unit. The discharge switch trigger unit and the discharge resistor unit are coupled connected to a voltage output side. When the output voltage of a power supply reaches a predetermined rated limitation, an over voltage protection circuit is activated, and the discharge switch unit is turned on by the discharge switch trigger unit, then the output voltage starts to decrease through the discharge resistor unit.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: May 9, 2017
    Assignee: ASIAN POWER DEVICES, INC.
    Inventor: Chih-Yuan Hsu
  • Publication number: 20170123402
    Abstract: An apparatus and method for transforming NC programs are provided, and the apparatus is electrically connected to a controller configured to, according to a NC program, command a machine to drive a cutting tool to cut a workpiece. The apparatus includes a triggering module, a coordinate position processing module, and a storage module. The triggering module is electrically connected to the controller. The coordinate position processing module is electrically connected to the controller and the triggering module. The storage module is electrically connected to the coordinate position processing module. The triggering module triggers the controller to execute the NC program in a single block mode. The coordinate position processing module is triggered by the triggering module to acquire at least one coordinate position from the controller. The storage module stores the at least one coordinate position. The triggering module simultaneously triggers the controller and the coordinate position processing module.
    Type: Application
    Filed: December 23, 2015
    Publication date: May 4, 2017
    Inventors: Chih-Yuan Hsu, Jui-Ming Chang, Shuo-Peng Liang, Tzuo-Liang Luo, Ta-Jen Peng, Jen-Ji Wang
  • Patent number: 9551985
    Abstract: An apparatus for positioning a geometric model comprises a machine tool, a control unit electrically coupled to the machine tool, a storage unit electrically coupled to the control unit, a positioning module electrically coupled to the storage unit, a virtual target geometry module electrically coupled to the positioning module, and a virtual machine tool module electrically and respectively coupled to the virtual target geometry module and the positioning module. A method for positioning the geometric model includes using components of the apparatus.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: January 24, 2017
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chih-Yuan Hsu, Shuo-Peng Liang, Jui-Ming Chang, Hsin-Chuan Su
  • Publication number: 20160336761
    Abstract: An electronic device including a connector and a charger is provided. The connector is arranged for coupling to a power supply external to the electronic device, wherein the power supply is arranged to provide a supply voltage to the electronic device to charge a battery of the electronic device. The charger is coupled to the connector and selectively operated in a normal mode or a self-test mode, wherein when the charger operates in the normal mode, the charger is arranged for receiving the supply voltage via a power pin of the connector to charge the battery of the electronic device; and when the charger operates in the self-test mode, the charger provides a specific voltage to the power pin of the connector.
    Type: Application
    Filed: January 26, 2016
    Publication date: November 17, 2016
    Inventors: Chih-Yuan Hsu, Yu-Yuan Kuo
  • Publication number: 20160301927
    Abstract: An output circuit includes a level adjustment circuit and a determination circuit. The output circuit is employed for generating an output to an output terminal of the output circuit, where the output terminal is coupled to a connecting port. The level adjustment circuit is coupled to the output terminal and is employed for generating at least one adjusted signal according to a first voltage signal at the output terminal in a first period and a second voltage signal at the output terminal in a second period. The determination circuit is coupled to the level adjustment circuit and is employed for generating a determination signal according to the at least one adjusted signal, wherein the determination signal indicates whether a load is connected to the connecting port.
    Type: Application
    Filed: November 3, 2015
    Publication date: October 13, 2016
    Inventors: Chih-Yuan Hsu, Yu-Shin Wang
  • Patent number: 9454057
    Abstract: An electrophoretic display (EPD) including a plurality of first electrodes, a plurality of second electrodes, and a plurality of pixel units is provided. The first electrodes are arranged in parallel and configured to receive a plurality of first electrode driving signals. The second electrodes are arranged in parallel and disposed perpendicular to the first electrodes, and the second electrodes are configured to receive a plurality of second electrode scanning signals. The pixel units are respectively arranged between the first electrodes and the second electrodes as an array. Each pixel unit includes a first capacitor and a second capacitor. The first terminal of the first capacitor is coupled to the corresponding first electrode. The first terminal of the second capacitor is coupled to the second terminal of the first capacitor, and the second terminal of the second capacitor is coupled to the corresponding second electrode.
    Type: Grant
    Filed: October 15, 2012
    Date of Patent: September 27, 2016
    Assignee: SiPix Technology Inc.
    Inventors: Yan-Liang Wu, Chi-Mao Hung, Wei-Min Sun, Pei-Lin Tien, Chih-Yuan Hsu
  • Publication number: 20160211691
    Abstract: A method and an apparatus for performing charging port detection control are provided, where the method is applied to an electronic device, a communication port of the electronic device has a functionality of obtaining power from an external power source for the electronic device, and a power path switching unit of the electronic device is arranged to control electrical connection between a system within the electronic device and a battery of the electronic device. The method may include the steps of: performing charging port detection; and control operation(s) according to the charging port detection. For example, the method may include: controlling the power path switching unit to have different configuration according to the charging port detection in order to charge the battery with different charging profiles; and detecting the system voltage level during charging for switching from the constant current mode to the constant voltage mode.
    Type: Application
    Filed: March 30, 2016
    Publication date: July 21, 2016
    Inventors: Pi-Fen Chen, Chih-Yuan Hsu, Hung-I Wang
  • Publication number: 20160172874
    Abstract: A charging system comprises an electronic device and a power adapter for charging the electronic device. The electronic device has a bi-directional communication with the power adapter; and the electronic device is arranged to send a health check command to the power adapter, and the power adapter performs a self-health check operation and reports a checking result to the electronic device. In addition, the electronic device may calculate a cable impedance, and control a compensation function of the power adapter by referring to the calculated cable impedance.
    Type: Application
    Filed: June 15, 2015
    Publication date: June 16, 2016
    Inventors: Chih-Yuan Hsu, Chuan-Chang Lee
  • Publication number: 20160164324
    Abstract: A portable device capable of controlling output characteristics of an adaptor used for charging a battery of the portable device includes a sensing circuit and a controlling circuit. The sensing circuit senses a condition of the battery. The controlling circuit controls the adaptor to adjust its output characteristics based on the condition of the battery.
    Type: Application
    Filed: June 3, 2014
    Publication date: June 9, 2016
    Inventors: Chih-Yuan Hsu, Chi-Ming Lee
  • Publication number: 20160126758
    Abstract: A method used between a portable device and a battery pack including at least one battery cell includes: transmitting information for the battery cell from the portable device to the battery pack via the connecting interface or from the battery pack to the portable device via the connecting interface; and, according to the information for the battery cell, performing at least one control operation that is associated with the battery cell.
    Type: Application
    Filed: June 13, 2014
    Publication date: May 5, 2016
    Inventors: Jui-Chi Wu, Chi-Ming Lee, Chih-Yuan Hsu
  • Patent number: 9327321
    Abstract: A method and an apparatus for performing charging port detection control are provided, where the method is applied to an electronic device, a communication port of the electronic device has a functionality of obtaining power from an external power source for the electronic device, and a power path switching unit of the electronic device is arranged to control electrical connection between a system within the electronic device and a battery of the electronic device. The method may include the steps of: performing charging port detection; and control operation(s) according to the charging port detection. For example, the method may include: controlling the power path switching unit to have different configuration according to the charging port detection in order to charge the battery with different charging profiles; and detecting the system voltage level during charging for switching from the constant current mode to the constant voltage mode.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: May 3, 2016
    Assignee: MEDIATEK INC.
    Inventors: Pi-Fen Chen, Chih-Yuan Hsu, Hung-I Wang
  • Publication number: 20160072272
    Abstract: A discharge circuit includes a discharge switch trigger unit, a discharge switch unit and a discharge resistor unit. The discharge switch unit is coupled connected to the discharge switch trigger unit. The discharge resistor unit is coupled connected to the discharge switch unit. The discharge switch trigger unit and the discharge resistor unit are coupled connected to a voltage output side. When the output voltage of a power supply reaches a predetermined rated limitation, an over voltage protection circuit is activated, and the discharge switch unit is turned on by the discharge switch trigger unit, then the output voltage starts to decrease through the discharge resistor unit.
    Type: Application
    Filed: July 17, 2015
    Publication date: March 10, 2016
    Inventor: Chih-Yuan HSU
  • Publication number: 20160049803
    Abstract: A method for controlling an adaptor to charge a battery includes: determining whether the adaptor is capable of providing a predetermined charging current for the battery; sensing an output voltage of the adaptor and an output current of the adaptor; and controlling the adaptor to adjust the output current and the output voltage according to the sensed output voltage and the sensed output current when the adaptor is not capable of providing the predetermined charging current.
    Type: Application
    Filed: July 18, 2014
    Publication date: February 18, 2016
    Inventors: Chih-Yuan Hsu, Chuan-Chang Lee
  • Patent number: D804031
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: November 28, 2017
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Chih-Yuan Hsu, Yi-Da Tsai, Chun-Ywan Chang