Patents by Inventor Yu-Kai Wang

Yu-Kai Wang 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: 11263083
    Abstract: A system and method for to modify a setup to allow a restart despite a faulty hardware component is disclosed. The system includes a management controller storing a system error log. The computer system includes hardware components in communication with the management controller. A basic input output system (BIOS) includes a start-up routine that successfully completes if all of the hardware components are functional. The start-up routine determines an error in one of the hardware components from the system error log. The routine disables the hardware component. The routine then completes a power-on self-test routine.
    Type: Grant
    Filed: March 26, 2021
    Date of Patent: March 1, 2022
    Assignee: QUANTA COMPUTER INC.
    Inventors: Po-Yen Lu, Wei-Tsung Tu, Yu-Kai Wang
  • Publication number: 20210310804
    Abstract: An aerial vehicle including a body, a first ranging device, a second ranging device and a controller is provided. The first ranging device is disposed on the body and is configured to detect a first distance between the first ranging device and the reflector. The second ranging device is disposed on the body and is configured to detect a second distance between the second ranging device and the reflector. The controller is configured to obtain an included angle between a direction of the body and the reflector according to the first distance and the second distance.
    Type: Application
    Filed: April 1, 2020
    Publication date: October 7, 2021
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Yuan-Chu TAI, Chung-Hsien WU, Yu-Kai WANG
  • Patent number: 11101684
    Abstract: A power supply method and a power supply apparatus including a power conversion circuit, a first and a second switching circuit, and a control circuit are provided. The power conversion circuit is coupled between a DC power source and a power supply terminal and performs a boosting operation according to a DC voltage of the DC power source to generate a boost voltage. The first switching circuit is coupled between an AC power source and the power supply terminal. The second switching circuit is coupled between the power conversion circuit and the power supply terminal. The control circuit enters a first mode after turning on the first and the second switching circuit, so the first switching circuit transmits a main AC voltage of the AC power source to the power supply terminal in the first mode. The boost voltage is greater than a peak value of the main AC voltage.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: August 24, 2021
    Assignee: Merry Electronics(Shenzhen) Co., Ltd.
    Inventors: Yung-Hsiang Liu, Wei-Kang Liang, Yu-Kai Wang
  • Publication number: 20210125943
    Abstract: A semiconductor device structure is provided. The semiconductor device structure includes a semiconductor substrate and a gate disposed on the semiconductor substrate. The semiconductor device structure also includes a source doped region and a drain doped region on two opposite sides of the gate. The semiconductor device structure further includes a source protective circuit and a drain protective circuit. From a side perspective view, a first drain conductive element of the source protective circuit partially overlaps a first source conductive element of the drain protective circuit.
    Type: Application
    Filed: October 23, 2019
    Publication date: April 29, 2021
    Applicant: Vanguard International Semiconductor Corporation
    Inventors: Jian-Hsing LEE, Shao-Chang HUANG, Chih-Hsuan LIN, Yu-Kai WANG, Karuna NIDHI, Hwa-Chyi CHIOU
  • Publication number: 20210075215
    Abstract: An operating circuit is provided. A first N-type transistor determines whether to turn the path between a core circuit and a ground terminal on or off according to the voltage level of a specific node. An electrostatic discharge (ESD) protection circuit is coupled between an input/output pad and the core circuit to prevent an ESD current from passing through the core circuit. The ESD protection circuit includes a detection circuit and a releasing element. The detection circuit determines whether there is an ESD event at the input/output pad and generates a first detection signal according to the detection of the ESD event at the input/output pad. The releasing element provides a release path according to the first detection signal to release the ESD current. A control circuit controls the voltage level of the specific circuit according to the first detection signal.
    Type: Application
    Filed: September 11, 2019
    Publication date: March 11, 2021
    Applicant: VANGUARD INTERNATIONAL SEMICONDUCTOR CORPORATION
    Inventors: Shao-Chang Huang, Li-Fan Chen, Ching-Ho Li, Ting-You Lin, Chun-Chih Chen, Kai-Chieh Hsu, Chih-Hsuan Lin, Yu-Kai Wang
  • Publication number: 20210033815
    Abstract: A lens module of enhanced stability and strength when mounted to an image-capturing device includes a voice coil motor. The voice coil motor includes a casing and a first connection plate connected to the casing. The first connection plate defines at least one first mounting hole. An electronic device using the lens module is also provided.
    Type: Application
    Filed: November 5, 2019
    Publication date: February 4, 2021
    Inventors: CHENG-AN LIN, YU-KAI WANG, CHUN-YAO HUANG
  • Patent number: 10784252
    Abstract: An ESD protection circuit, which protects a subject NMOS transistor coupled between an I/O pad and a ground, includes a first discharge device arranged between the I/O pad and the ground, having a trigger-on voltage that is lower than a breakdown voltage of the subject NMOS transistor; and a gate voltage control device, including a discharge NMOS transistor coupled to the ground and a gate of the subject NMOS transistor; a first PMOS transistor connected to the gate of the subject NMOS transistor and a connection node; and a first NMOS transistor connected to the connection node and the ground. The connection node is connected to the gate of the discharge NMOS transistor, and the gate of the first PMOS transistor and the gate of the first NMOS transistor are connected to each other.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: September 22, 2020
    Assignee: Vanguard International Semiconductor Corporation
    Inventors: Shao-Chang Huang, Li-Fan Chen, Chih-Hsuan Lin, Yu-Kai Wang, Hung-Wei Chen, Ching-Wen Wang, Ting-You Lin, Chun-Chih Chen
  • Publication number: 20200244098
    Abstract: A power supply method and a power supply apparatus including a power conversion circuit, a first and a second switching circuit, and a control circuit are provided. The power conversion circuit is coupled between a DC power source and a power supply terminal and performs a boosting operation according to a DC voltage of the DC power source to generate a boost voltage. The first switching circuit is coupled between an AC power source and the power supply terminal. The second switching circuit is coupled between the power conversion circuit and the power supply terminal. The control circuit enters a first mode after turning on the first and the second switching circuit, so the first switching circuit transmits a main AC voltage of the AC power source to the power supply terminal in the first mode. The boost voltage is greater than a peak value of the main AC voltage.
    Type: Application
    Filed: September 9, 2019
    Publication date: July 30, 2020
    Applicant: Merry Electronics(Shenzhen) Co., Ltd.
    Inventors: Yung-Hsiang Liu, Wei-Kang Liang, Yu-Kai Wang
  • Publication number: 20200098740
    Abstract: An ESD protection circuit, which protects a subject NMOS transistor coupled between an I/O pad and a ground, includes a first discharge device arranged between the I/O pad and the ground, having a trigger-on voltage that is lower than a breakdown voltage of the subject NMOS transistor; and a gate voltage control device, including a discharge NMOS transistor coupled to the ground and a gate of the subject NMOS transistor; a first PMOS transistor connected to the gate of the subject NMOS transistor and a connection node; and a first NMOS transistor connected to the connection node and the ground. The connection node is connected to the gate of the discharge NMOS transistor, and the gate of the first PMOS transistor and the gate of the first NMOS transistor are connected to each other.
    Type: Application
    Filed: September 20, 2018
    Publication date: March 26, 2020
    Applicant: Vanguard International Semiconductor Corporation
    Inventors: Shao-Chang HUANG, Li-Fan CHEN, Chih-Hsuan LIN, Yu-Kai WANG, Hung-Wei CHEN, Ching-Wen WANG, Ting-You LIN, Chun-Chih CHEN
  • Patent number: 9965365
    Abstract: A power supply failover system/method providing uninterruptable power to protected load devices (PLD) is disclosed. The system includes a failover switch controller (FSC) with inputs from an AC I/V monitor (AIV), AC cycle counter (ACC), failover switch timer (FST), and overcurrent protection timer (OPT). The FSC utilizes these inputs to control failsafe switching of a bypass phase switch (BPS) and AC phase switch (ACS) to the PLD when power from the APS is determined to be good by the AIV. When power from the APS is determined to be compromised by the AIV, the FPS disables the ACS/BPS and enables a DC switch (DCS) and battery isolation switch (BIS) to connect a DC source to the PLD after a time period determined by the FST. APS/DCS overcurrent protection is limited by OPT intervals allowing a smooth transition between the APS to DCS during power failover/failback.
    Type: Grant
    Filed: January 22, 2016
    Date of Patent: May 8, 2018
    Assignee: LITE-ON, INC.
    Inventors: Victor K. J. Lee, Yung Hsiang Liu, Wei Kang Liang, Yu Kai Wang, Chih Hung Chiang
  • Patent number: 9680197
    Abstract: A micro bandpass filter comprises a substrate, a first signal transmission member, a second signal transmission member and a resonator structure. The resonator structure includes a plurality of microstrip lines. The present invention realizes the function of a bandpass filter in a smaller area via curving the first signal transmission member, the second signal transmission member and the resonator structure.
    Type: Grant
    Filed: September 22, 2015
    Date of Patent: June 13, 2017
    Assignee: NATIONAL TSING HUA UNIVERSITY
    Inventors: Ta-Jen Yen, Ruei-han Jiang, Yu-Kai Wang, Tsung-Yu Huang
  • Publication number: 20160336633
    Abstract: A micro bandpass filter comprises a substrate, a first signal transmission member, a second signal transmission member and a resonator structure. The resonator structure includes a plurality of microstrip lines. The present invention realizes the function of a bandpass filter in a smaller area via curving the first signal transmission member, the second signal transmission member and the resonator structure.
    Type: Application
    Filed: September 22, 2015
    Publication date: November 17, 2016
    Inventors: Ta-Jen Yen, Ruei-han Jiang, Yu-Kai Wang, Tsung-Yu Huang
  • Publication number: 20160154716
    Abstract: A power supply failover system/method providing uninterruptable power to protected load devices (PLD) is disclosed. The system includes a failover switch controller (FSC) with inputs from an AC I/V monitor (AIV), AC cycle counter (ACC), failover switch timer (FST), and overcurrent protection timer (OPT). The FSC utilizes these inputs to control failsafe switching of a bypass phase switch (BPS) and AC phase switch (ACS) to the PLD when power from the APS is determined to be good by the AIV. When power from the APS is determined to be compromised by the AIV, the FPS disables the ACS/BPS and enables a DC switch (DCS) and battery isolation switch (BIS) to connect a DC source to the PLD after a time period determined by the FST. APS/DCS overcurrent protection is limited by OPT intervals allowing a smooth transition between the APS to DCS during power failover/failback.
    Type: Application
    Filed: January 22, 2016
    Publication date: June 2, 2016
    Applicant: Lite-On, Inc.
    Inventors: Victor K. J. LEE, Yung Hsiang LIU, Wei Kang LIANG, Yu Kai WANG, Chih Hung CHIANG
  • Patent number: 8532974
    Abstract: A method for optimizing energy consumption of an application program for a DSP includes a program code generating unit is adapted to edit and generate a program code, a program compiling unit is adapted to receive the program code, and according to the program code and the instructional wise energy consumption database generate a plurality of assembly codes, and a DSP simulator adapted to receive the assembly codes and at least one stimulus to simulate the total and the amount of energy every instruction of the assembly codes consumes and transmit the results to the program compiling unit. The program compiling unit modifies the compiling scheme to recompile the program code and transmits the new assembly codes to the DSP simulator, until the simulation results reach or are lower than a predetermined energy consumption value.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: September 10, 2013
    Assignee: Sentelic Corporation
    Inventors: Zhi-Yang Guo, Yu-Chung Tsao, Yu-Kai Wang, Mao-Sung Wu, Chun Hsieh, Tsai-Lin Lee
  • Publication number: 20120281441
    Abstract: A circuit for converting a direct current voltage into an alternating current voltage includes a buck converter, a resonant DC voltage/DC voltage converter, a DC voltage/AC voltage inverter, and a DC link capacitor. The buck converter generates a DC current according to an input voltage generated by a voltage source operating at an optimal operation point. The resonant DC voltage/DC voltage converter converts the input voltage to a DC voltage according to a switch clock and a resonant frequency determined by a resonant capacitor and a resonant inductance of the resonant DC voltage/DC voltage converter. The DC voltage/AC voltage inverter converts the DC voltage and outputs an AC voltage to an AC power supply network. The DC link capacitor adjusts power outputted by the DC voltage/AC voltage converter to regulate the DC voltage.
    Type: Application
    Filed: September 21, 2011
    Publication date: November 8, 2012
    Inventors: Yung-Hsiang Liu, Kuo-Hsin Chu, Yu-Kai Wang, Yuan-Chao Niu
  • Publication number: 20120078606
    Abstract: A developing system and method for optimizing the energy consumption of an application program for a DSP are provided.
    Type: Application
    Filed: September 28, 2010
    Publication date: March 29, 2012
    Inventors: Zhi-Yang Guo, Yu-Chung Tsao, Yu-Kai Wang, Mao-Sung Wu, Chun Hsieh, Tsai-Lin Lee