Patents by Inventor Kang Wu

Kang Wu 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).

  • DEVICE FOR TESTING FAN
    Publication number: 20140348652
    Abstract: A fan test device to connect a motherboard and a fan includes a control chip, a first connector, a second connector, a first switch chip, a second switch chip, a first electronic switch, and a second electronic switch. The control chip is connected to sensing pins of the first and second connectors. The first electronic switch is connected between a power terminal and a power pin of the first connector. The second electronic switch is connected between the power terminal and a power pin of the second connector. The control chip outputs different signals corresponding to the connection of the first and second connectors to control the first and second switch chips.
    Type: Application
    Filed: May 21, 2014
    Publication date: November 27, 2014
    Applicants: HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: BO TIAN, KANG WU
  • Control circuit for fan
    Patent number: 8896253
    Abstract: A control circuit for a fan includes a fan controller, a switch controller, and a frequency detector. When a pulse-width modulation (PWM) signal output pin of the fan controller outputs PWM signals, the frequency detector outputs a high level signal, connecting an input pin of the switch controller to an output pin of the switch controller. The fan receives the PWM signal. When the PWM signal output pin of the fan controller does not output PWM signals, the frequency detector outputs a low level signal, such that the output pin of the switch controller does not output any signal. In this state, the fan receives a high level signal through a resistor and a power supply, enabling the fan to continue operating.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: November 25, 2014
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventor: Kang Wu
  • DETECTION SYSTEM FOR HARD DISK DRIVE
    Publication number: 20140344484
    Abstract: A detection system for detecting status of a plurality of hard disk drives includes a plurality of subsystems. Each of the subsystems includes a controller with a plurality of general purpose input output (GPIO) pins, a plurality of connectors respectively connected to the hard disk drives, a plurality of interfaces with data pins, and a plurality of indication units. Each indication unit includes a light-emitting diode (LED). When the hard disk drive disconnects from the corresponding GPIO pin of the controller or is damaged, the corresponding GPIO pin of the controller outputs a digital high signal to the corresponding indication unit, the corresponding LED is turned off.
    Type: Application
    Filed: May 16, 2014
    Publication date: November 20, 2014
    Applicants: HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: BO TIAN, KANG WU
  • PROTECTION CIRCUIT
    Publication number: 20140340795
    Abstract: A protection circuit includes a protection module and a fan electrically connected to the protection module. The protection module includes a control chip, an inverter, and an electronic switch. An input terminal of the inverter is electrically connected to a voltage output terminal and the fan, and further electrically connected to a clear pin of the control chip. An output terminal of the inverter is electrically connected to a preparation pin of the control chip. A first terminal of the electronic switch is electrically connected to an output pin of the control chip.
    Type: Application
    Filed: March 31, 2014
    Publication date: November 20, 2014
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., HON HAI PRECISION INDUSTRY (SHENZHEN) CO., LTD.
    Inventors: KANG WU, BO TIAN
  • DETECTING SYSTEM FOR HARD DISK DRIVE
    Publication number: 20140344481
    Abstract: A detecting circuit for a hard disk drive includes a controller, a first connector, a second connector connected to the first connector, a processor, a feedback circuit, and an indicator circuit. The controller outputs a control signal to the indicator circuit upon receiving feedback data from the feedback circuit, to control the indicator circuit to send out an indicator message. The processor determines whether a connection between the first and second connectors or the hard disk drive is the cause of a malfunction depending on the indicator message sent out by the indicator circuit.
    Type: Application
    Filed: May 15, 2014
    Publication date: November 20, 2014
    Applicants: HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: BO TIAN, KANG WU
  • FIXTURE FOR CLAMPING WORKPIECE
    Publication number: 20140339751
    Abstract: A fixture for clamping a workpiece is disclosed. The fixture includes a supporting stand and an elastic contacting assembly. The supporting stand has a first accommodating space and a plural of fixing portions. The elastic contacting assembly is disposed in a corner of the supporting stand. The elastic contacting assembly includes a cylinder, a pushing block driven by the cylinder and moved toward the first accommodating space to lean against the workpiece, and an elastic component disposed between the cylinder and the pushing block. Thereby, an elastic pushing force will be provided to the workpiece for positioning the workpiece, and there will be no damages to the workpiece.
    Type: Application
    Filed: May 14, 2013
    Publication date: November 20, 2014
    Applicant: Asti Global Optoelectronics (Suzhou) LTD
    Inventors: Chien-Chung CHEN, Chih-Wei HUANG, Chen-Yu JIANG, Cheng-Kang WU
  • DETECTING CIRCUIT FOR FANS
    Publication number: 20140331768
    Abstract: A detecting circuit for a number of fans includes a connector module and a controller. The connector module includes a number of connectors. Each connector outputs a first signal or a second signal depending on the connection or non-connection to a fan. The controller receives a speed signal of the fan upon receiving the first signal which indicates a connected state.
    Type: Application
    Filed: May 9, 2014
    Publication date: November 13, 2014
    Applicants: HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: BO TIAN, KANG WU
  • MOTHERBOARD WITH CONNECTOR COMPATIBLE WITH DIFFERENT INTERFACE STANDARDS
    Publication number: 20140334112
    Abstract: A motherboard includes a first connector, a first signal module, a second signal module, a control module, a power module, and a switch module. The first connector is used to connect external devices to the motherboard. The first signal module and the second signal module are compatible for external devices under different interface standards. The control module outputs different control signals to control the switch module corresponding to the external device connected to the motherboard. The switch module connects the first signal module or the second signal module to the first connector corresponding to the control signals received from the control module.
    Type: Application
    Filed: May 7, 2014
    Publication date: November 13, 2014
    Applicants: HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: BO TIAN, KANG WU
  • RISER CARD ASSEMBLY
    Publication number: 20140334122
    Abstract: A riser card assembly includes two riser cards and two fixing members. Each riser card includes a plate, a first connector connected to a top side of the plate, a second connector connected to a side of the plate, and an edge connector extending from a bottom side of the plate. The riser cards are fixed to sides of the fixing members. A pin and a receiving portion are formed at a side of each fixing member. Each edge connector and the corresponding pin are capable of being engaged in the first connector of the other riser card and the corresponding receiving portion.
    Type: Application
    Filed: May 24, 2013
    Publication date: November 13, 2014
    Applicants: HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: BO TIAN, KANG WU, YU HAN
  • DETECTING CIRCUIT FOR FAN INSTALLATION
    Publication number: 20140327456
    Abstract: Detecting circuit for a plurality fans includes a plurality of detecting units, a connection unit, a processing unit, and a plurality of indicating units whose number equals the number of the detecting units. The detecting units detect whether the fans have been properly installed and then output detection signals. The connection unit transfers the detection signals to the processing unit. The processing unit processes the detection signals and outputs judgment signals. The indicating units indicate installation states of the fans according to the judgment signals.
    Type: Application
    Filed: April 29, 2014
    Publication date: November 6, 2014
    Applicants: HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: KANG WU, BO TIAN
  • Bridging board and server system
    Patent number: 8880767
    Abstract: A bridging board configured for connecting a processor with a hard disk backboard includes a first signal connecting apparatus, a second signal connecting apparatus, a plurality of duplexer and a signal conditioner. The first signal connecting apparatus is electronically connected to the processor. The second signal connecting apparatus electronically connected to the hard disk backboard. Each duplexer has an input terminal electronically connected to the first signal connecting apparatus, and two output terminals electronically connected to the second signal connecting apparatus to allow the processor to communicate with the backboard via the bridging board. The signal conditioner is electronically connected between the first signal connecting apparatus and the second signal connecting apparatus to amplify signals transmitted from the processor to the hard disk backboard.
    Type: Grant
    Filed: October 25, 2012
    Date of Patent: November 4, 2014
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventors: Kang Wu, Bo Tian
  • Server with plurality of network cards with remote restarting and wake-up functionality
    Patent number: 8874890
    Abstract: A server includes a number of first and second network cards, a buffer, a restart circuit, an AND gate, and a south bridge. Each of the first network cards includes a first signal pin to transmit a wake-up signal and a restart signal. Each of the second network cards includes a second signal pin to transmit a wake-up signal. The restart circuit is connected to each of the first signal pins through the buffer to receive the restart signal, and reboots the server according to the restart signal. The south bridge is connected to each of the first and second signal pins through the AND gate to receive the wake-up signal, and wakes up the server according to the wake-up signal.
    Type: Grant
    Filed: August 8, 2012
    Date of Patent: October 28, 2014
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventors: Kang Wu, Bo Tian
  • DETECTING APPARATUS FOR HARD DISK DRIVE
    Publication number: 20140313873
    Abstract: A detecting circuit for a number of hard disk drives (HDDs) includes a backplane, a control circuit, a converting circuit, and an integrated baseboard management controller (IBMC) chip. The backplane is connected to the HDDs and outputs state signals of the HDDs corresponding to operation information of the HDDs to the control circuit. The control circuit outputs parallel signals corresponding to the state signals to the converting circuit. The converting circuit converts the parallel signals into serial signals and outputs the serial signals to the IBMC chip. Operation information of the HDDs is obtained through the IBMC chip remotely.
    Type: Application
    Filed: April 17, 2014
    Publication date: October 23, 2014
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: KANG WU, BO TIAN
  • CONTROL CIRCUIT FOR HARD DISK DRIVE
    Publication number: 20140313611
    Abstract: A control circuit for a hard disk drive (HDD) includes a control chip, a connector connected between the control chip and a motherboard, and a function transform circuit connected between the control chip and the connector. A status pin of the control chip is connected to a status receiving pin of the connector through the function transform circuit, to send a working state signal of the hard disk drive to the status receiving pin of the connector. The status receiving pin shows a normal operation of the HDD through a light emitting diode connected to the status receiving pin. The function transform circuit provides a high level signal to a staggered spin-up pin of the control chip, to make the control chip control the hard disk drive to execute staggered spin-up function.
    Type: Application
    Filed: June 27, 2013
    Publication date: October 23, 2014
    Inventors: BO TIAN, KANG WU
  • INRUSH CURRENT CONTROL CIRCUIT
    Publication number: 20140300406
    Abstract: A control circuit includes a control module, a delay module, and an electronic switch. The control module is connected between a power supply and a load. The delay module is connected to the control module and the electronic switch. A first terminal of the electronic switch is connected to the control module and the delay module. A second terminal of the electronic switch is connected to the power supply. A third terminal of the electronic switch is connected to the load.
    Type: Application
    Filed: December 19, 2013
    Publication date: October 9, 2014
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD.
    Inventors: BO TIAN, KANG WU
  • INRUSH CURRENT CONTROL CIRCUIT
    Publication number: 20140300405
    Abstract: A control circuit includes a control module, a delay module, and an electronic switch. The control module is connected between a power supply and a load. The delay module is connected to the control module and the electronic switch. A first terminal of the electronic switch is connected to the control module and the delay module. A second terminal of the electronic switch is connected to the power supply. A third terminal of the electronic switch is connected to the load.
    Type: Application
    Filed: December 19, 2013
    Publication date: October 9, 2014
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD.
    Inventors: BO TIAN, KANG WU
  • INDICATION CIRCUIT FOR INDICATING ROTATION SPEED OF FANS
    Publication number: 20140292525
    Abstract: An indication circuit for indicating the rotation speeds of fans of a server includes a connector, a microprocessor, a number of light emitting diodes (LEDs) and resistors which correspond to the LEDs one-to-one. The connector is connected to the fans. The microprocessor is connected to the connector and utilized to receive the rotation speed signals of the fans from the connector. A cathode of each LED is connected to a corresponding output terminal of the microprocessor through a resistor, and anodes of the LEDs are connected to a power source.
    Type: Application
    Filed: December 20, 2013
    Publication date: October 2, 2014
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD
    Inventors: KANG WU, BO TIAN
  • POWER SUPPLY CIRCUIT
    Publication number: 20140255213
    Abstract: A power supply circuit includes a connector for a fan, a speed adjusting circuit, a speed feedback circuit, a control module, first and second power sources, and a switching module. The speed adjusting circuit is connected to a modulation pin of the connector. The speed feedback circuit is connected to a speed pin of the connector. The control module receives a speed signal from the fan through the speed feedback circuit and outputs signals correspondingly. The switching module selects the first or the second power source to supply power for the fan according to the signals from the control module.
    Type: Application
    Filed: March 4, 2014
    Publication date: September 11, 2014
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD
    Inventors: BO TIAN, KANG WU
  • FAN SPEED TESTING DEVICE
    Publication number: 20140247038
    Abstract: A fan speed testing device is provided. The device includes a power jack, a voltage conversion module, a first fan connector, a DIP switch, and a control module. The first fan connector receives voltage from the power jack and outputs a PWM signal to a fan, receives a first feedback signal from the fan, and outputs the first feedback signal to the control module. The control module receives the predetermined voltage, sets the rotation speed of the fan as marked or predicted by the manufacturer, and outputs the generated PWM signal to the first fan connector. The control module further analyzes the first feedback signal to determine an actual rotation speed of the fan, and outputs the predicted rotation speed of the fan and the first actual rotation speed of the fan, by visual or audible signal to the user for comparison purposes.
    Type: Application
    Filed: April 12, 2013
    Publication date: September 4, 2014
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD.
    Inventors: KANG WU, BO TIAN
  • Hard disk drive
    Patent number: 8824082
    Abstract: A hard disk drive includes a control unit, a cache unit, a head unit, a platter unit, a spindle motor unit, a power supply unit, a switch unit, and an interface. When the switch unit is turned on, the power supply unit converts voltages of external power supplies received from the interface through the switch unit into operation voltages of the control unit, the cache unit, the head unit, the platter unit, and the spindle motor unit, and supplies the operation voltages to the control unit, the cache unit, the head unit, the platter unit, and the spindle motor unit. When the switch unit is turned off by the control unit, the voltages of the external power supplies cannot be transmitted to the power supply unit through the switch unit.
    Type: Grant
    Filed: October 9, 2012
    Date of Patent: September 2, 2014
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventors: Kang Wu, Bo Tian