Patents by Inventor Zhao Long

Zhao Long 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: 8749214
    Abstract: A power circuit includes a control unit, a logic control circuit, a first driver amplifier, a second driver amplifier and a logic determination circuit. The control unit is used to output a pulse width modulation (PWM) signal and an enable (EN) signal. The logic control circuit receives the PWM signal and the EN signal, and outputs a first voltage signal and a second voltage signal. The first driver amplifier receives the first voltage signal, and outputs a first gate (UGATE) drive signal. The second driver amplifier receives the second voltage signal, and outputs a second gate (LGATE) drive signal. The logic determination circuit receives the PWM signal and the first and second gate drive signals. When the PWM signal and the first and second gate drive signals meet an abnormal logical relation, the logic determination circuit disables the logic control circuit.
    Type: Grant
    Filed: December 13, 2011
    Date of Patent: June 10, 2014
    Assignee: Asus Technology Pte Ltd
    Inventors: Bing-Bing Xu, Ju-Ya Luo, Zhao-Long Dong, Ching-Ji Liang
  • Patent number: 8687326
    Abstract: The invention discloses a short circuit protecting device adapted to a DC-DC converter with a soft-start function, and a voltage output terminal of the DC-DC converter increases an output current in segments in multiple time periods after the DC-DC converter is started. The short circuit protecting device including a voltage sensor connected to the voltage output terminal to sense the output voltage; a start timer generating a enable signal in a predetermined period after the DC-DC converter is started; a comparison circuit connected to the voltage sensor and the start timer and comparing the output voltage with a predetermined voltage according to the enable signal. The sum of the time period is a startup time of the DC-DC converter, and the startup time is longer than the predetermined period. When the output voltage is smaller than the predetermined voltage, a comparison circuit outputs a control signal to stop the DC-DC converter.
    Type: Grant
    Filed: July 6, 2010
    Date of Patent: April 1, 2014
    Assignee: ASUS Technology Pte Ltd.
    Inventors: Zhao-Long Dong, Ching-Ji Liang
  • Publication number: 20140036414
    Abstract: A capacitor includes a positive foil, an electrolyte layer, a negative foil, a plurality of positive guide needles and a plurality of negative guide needles. The electrolyte layer has a first surface and a second surface opposite to each other. The first surface overlaps the positive foil, and the second surface overlaps the negative foil. The positive guide needles are disposed at the positive foil. The negative guide needles are disposed at the negative foil. The positive foil, the electrolyte layer and the negative foil are wound to make the capacitor be a cylinder, and the positive guide needles and the negative guide needles protrude from the cylinder, respectively.
    Type: Application
    Filed: July 11, 2013
    Publication date: February 6, 2014
    Applicant: ASUS TECHNOLOGY PTE LTD.
    Inventors: Bing-Bing Xu, Ching-Ji Liang, Zhao-Long Dong
  • Publication number: 20140036443
    Abstract: A graphic card with multiple fans and a controlling method thereof are provided. In the controlling method, the temperature of a first component and a second component of the graphic card is detected. A rotating speed of a first fan of the graphic card is adjusted according to the temperature of the first component. The rotating speed of the second fan of the graphic card is adjusted according to the temperature of the second component or the temperature of the first component and the second component.
    Type: Application
    Filed: July 25, 2013
    Publication date: February 6, 2014
    Applicant: ASUS TECHNOLOGY PTE LTD.
    Inventors: Bing-Bing Xu, Zhao-Long Dong, Ching-Ji Liang
  • Patent number: 8242396
    Abstract: A keypad assembly, comprising: a main body made of metal, the main body defining a plurality of slots and the slots enclosing a plurality of pressing buttons thereon, each pressing button defining at least one symbol slot, the main body having a contact surface and a operating surface; and a light-transmissive filling member, the filling member defining a plurality of protruding strips and the protruding strips enclosing a plurality of button areas thereon, each button area having at least one symbol block protruding therefrom, the filling member bonding to the contact surface with the protruding strips and the symbol blocks respectively engaging in the corresponding slots and the symbol slots. A method for making the present keypad assembly is also described.
    Type: Grant
    Filed: December 7, 2009
    Date of Patent: August 14, 2012
    Assignees: Shenzhen Futaihong Precision Industry Co., Ltd., FIH (Hong Kong) Limited
    Inventors: Hsu-Tang Chen, Wen-Te Lai, Hsiang-Jung Su, Liang Xiong, Kai-Ming Guo, You-Li Liu, Jian-Hua Wu, Zhao-Long Zheng
  • Publication number: 20120146600
    Abstract: A power circuit includes a control unit, a logic control circuit, a first driver amplifier, a second driver amplifier and a logic determination circuit. The control unit is used to output a pulse width modulation (PWM) signal and an enable (EN) signal. The logic control circuit receives the PWM signal and the EN signal, and outputs a first voltage signal and a second voltage signal. The first driver amplifier receives the first voltage signal, and outputs a first gate (UGATE) drive signal. The second driver amplifier receives the second voltage signal, and outputs a second gate (LGATE) drive signal. The logic determination circuit receives the PWM signal and the first and second gate drive signals. When the PWM signal and the first and second gate drive signals meet an abnormal logical relation, the logic determination circuit disables the logic control circuit.
    Type: Application
    Filed: December 13, 2011
    Publication date: June 14, 2012
    Inventors: Bing-Bing XU, Ju-Ya LUO, Zhao-Long DONG, Ching-Ji LIANG
  • Publication number: 20110007435
    Abstract: The invention discloses a short circuit protecting device adapted to a DC-DC converter with a soft-start function, and a voltage output terminal of the DC-DC converter increases an output current in segments in multiple time periods after the DC-DC converter is started. The short circuit protecting device including a voltage sensor connected to the voltage output terminal to sense the output voltage; a start timer generating a enable signal in a predetermined period after the DC-DC converter is started; a comparison circuit connected to the voltage sensor and the start timer and comparing the output voltage with a predetermined voltage according to the enable signal. The sum of the time period is a startup time of the DC-DC converter, and the startup time is longer than the predetermined period. When the output voltage is smaller than the predetermined voltage, a comparison circuit outputs a control signal to stop the DC-DC converter.
    Type: Application
    Filed: July 6, 2010
    Publication date: January 13, 2011
    Applicants: ASUS TECHNOLOGY (SUZHOU) CO. LTD, ASUSTEK COMPUTER INC.
    Inventors: Zhao-Long Dong, Ching-Ji Liang
  • Publication number: 20100175976
    Abstract: A keypad assembly, comprising: a main body made of metal, the main body defining a plurality of slots and the slots enclosing a plurality of pressing buttons thereon, each pressing button defining at least one symbol slot, the main body having a contact surface and a operating surface; and a light-transmissive filling member, the filling member defining a plurality of protruding strips and the protruding strips enclosing a plurality of button areas thereon, each button area having at least one symbol block protruding therefrom, the filling member bonding to the contact surface with the protruding strips and the symbol blocks respectively engaging in the corresponding slots and the symbol slots. A method for making the present keypad assembly is also described.
    Type: Application
    Filed: December 7, 2009
    Publication date: July 15, 2010
    Applicants: SHENZHEN FUTAIHONG PRECISION INDUSTRY CO., LTD., FIH (HONG KONG) LIMITED
    Inventors: HSU-TANG CHEN, WEN-TE LAI, HSIANG-JUNG SU, LIANG XIONG, KAI-MING GUO, YOU-LI LIU, JIAN-HUA WU, ZHAO-LONG ZHENG