Patents by Inventor Chuan Liang

Chuan Liang 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).

  • Apparatus for adjusting differential probe
    Patent number: 8085058
    Abstract: An apparatus for adjusting a differential probe includes a regulator arranged therein capable of adjusting a distance between two tips of the probe. The probe is supported on the apparatus. The apparatus includes a rotatable shaft and a rotatable disk. The rotatable shaft engages with the regulator of the probe. The rotatable disk is mounted surrounding the rotatable shaft and rotatable together with the rotatable shaft. An angular ruler or a radian ruler is described on an outer surface of the rotatable disk to indicate a rotation angle or a rotation radian of the rotatable shaft, therefore the distance between the two tips of the probe are accurately adjusted.
    Type: Grant
    Filed: November 25, 2009
    Date of Patent: December 27, 2011
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventors: Hsien-Chuan Liang, Shen-Chun Li, Shou-Kuo Hsu, Yung-Chieh Chen
  • System and method for testing a characteristic impedance of an electronic component
    Patent number: 8081008
    Abstract: A method for testing a characteristic impedance of an electronic component includes sending a positioning command to a control computer through a switch, so as to drive a probe holder of a mechanical arm to position probes of a time domain reflectometer (TDR) on a position of the electronic component. The method further receives measured data collected by the TDR, and compares the measured data with preset standard values to determine if the measured data is acceptable.
    Type: Grant
    Filed: October 26, 2009
    Date of Patent: December 20, 2011
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventors: Hsien-Chuan Liang, Shen-Chun Li, Yung-Chieh Chen, Shou-Kuo Hsu
  • COMPUTER MOTHERBOARD
    Publication number: 20110271025
    Abstract: A computer motherboard includes a printed circuit board which includes a central processing unit (CPU) socket and a group of memory slots. The group of memory slots includes an in-line type memory slot and a surface mounted device (SMD) type memory slot. The in-line type memory slot includes a number of plated through holes. The SMD type memory slot is set between the in-line type memory slot and the CPU socket. The through holes of the in-line type memory slot are connected to the CPU socket through traces, pads of the SMD type memory slot are connected to corresponding through holes of the in-line type memory slot having the same pin definition.
    Type: Application
    Filed: June 28, 2010
    Publication date: November 3, 2011
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: YUNG-CHIEH CHEN, CHENG-HSIEN LEE, SHOU-KUO HSU, SHEN-CHUN LI, HSIEN-CHUAN LIANG, SHIN-TING YEN
  • CLAMPING APPARATUS
    Publication number: 20110260385
    Abstract: A clamping apparatus for securing a workpiece is provided. The clamping apparatus includes a fixing base and a first and a second clamping device mounted on opposing sides of the fixing base. The first clamping device includes stacked clamping sheets, each of which is moveable and comprises an inclined clamping edge for contacting the workpiece. A support assembly supports the plurality of stacked clamping sheets; and an operating member is slidable relative to the support assembly and contacting the plurality of staked clamping sheets. The operation member is capable of moving at least one of the plurality of stacked clamping sheets relative to another one when the operation member slides relative to the support assembly, and moving at least one of the inclined clamping edge toward or away from the second clamping device to accommodate workpieces of varying sizes.
    Type: Application
    Filed: June 29, 2010
    Publication date: October 27, 2011
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: SHEN-CHUN LI, SHOU-KUO HSU, HSIEN-CHUAN LIANG
  • ELECTRONIC DEVICE AND METHOD OF PROTECTING SOFTWARE
    Publication number: 20110247085
    Abstract: In an electronic device and method of protecting software, a software program of the electronic device is invoked. The media access control (MAC) address of the electronic device and a serial number of a hard disk drive that stores the software program in the electronic device are searched. The MAC address and the serial number are compared with MAC addresses and serial numbers included in the software program, to determinate whether it is licensed to run the software program in the electronic device. Usage logs of the software program are further obtained to determine whether running of the software program in the electronic device is expired.
    Type: Application
    Filed: August 12, 2010
    Publication date: October 6, 2011
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: HSIEN-CHUAN LIANG, SHEN-CHUN LI, SHOU-KUO HSU
  • ELECTRONIC DEVICE AND METHOD FOR CORRECTING TIME-DOMAIN REFLECTOMETERS
    Publication number: 20110246112
    Abstract: In an electronic device and a method of correcting time-domain reflectometers, two channels of a time-domain reflectometer are connected to a corrector using cables, and the two channels are enabled to transmit pulses. Parameters Step Deskew and Channel Deskew of the two channels are zeroed. Resistance values of the two channels are measured simultaneously, and the value of the parameter Step Deskew of one of the two channels is adjusted according to the Resistance values of the two channels. Times of achieving the same resistance value of the two channels are measured after the cables and the connector have been disconnected, and the value of the parameter Channel Deskew of one of the two channels is adjusted according to the times of achieving the same resistance value. The adjusted values of the parameters Step Deskew and Channel Deskew are displayed through a display unit.
    Type: Application
    Filed: March 4, 2011
    Publication date: October 6, 2011
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: HSIEN-CHUAN LIANG, SHEN-CHUN LI, SHOU-KUO HSU
  • BEARING
    Publication number: 20110235956
    Abstract: A bearing includes a main body, a plurality of first magnetic members, a plurality of second magnetic members, and a plurality of friction members. The main body defines a pivot hole, and a plurality of first receiving portions and a plurality of second receiving portions around the pivot hole. Each of the second receiving portions defines a cutout. The first magnetic members are received in the first receiving portions. The second magnetic members together with the friction members are received in the second receiving portions, thus generating a repelling force between the first magnetic members and the second magnetic members to impel the friction members to partially extend out of the cutouts.
    Type: Application
    Filed: June 24, 2010
    Publication date: September 29, 2011
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: SHEN-CHUN LI, SHOU-KUO HSU, YUNG-CHIEH CHEN, HSIEN-CHUAN LIANG, SHIN-TING YEN, HUNG CHAO
  • ELECTRONIC DEVICE WITH ANTI-THEFT PROTECTION AND MERCURY CONNECTOR THEREOF
    Publication number: 20110215927
    Abstract: An electronic device with anti-theft protection includes an alarm unit, a mercury connector, and a microprocessor connected therebetween. The mercury connector includes a body containing mercury, and first and second leads arranged on the body. The microprocessor includes a first signal terminal and a second signal terminal. The first signal terminal is connected to the first lead. The second signal terminal is connected to the second lead. When the microprocessor has entered the anti-theft mode, if the electronic device is moved, the first lead connects to the second lead via the mercury and forms a circuit path from the first signal terminal to the second signal terminal. The microprocessor starts the alarm unit to generate an alarm.
    Type: Application
    Filed: April 26, 2010
    Publication date: September 8, 2011
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: HUNG CHAO, JUI-HSIUNG HO, WANG-DING SU, SHEN-CHUN LI, HSIEN-CHUAN LIANG
  • REPORT GENERATION SYSTEM AND METHOD
    Publication number: 20110208464
    Abstract: In a report generation system and method, one or more test parameters, a measured characteristic, and value ranges of the measured characteristic are set. Values of the one or more test parameters and the measured characteristic are retrieved from measurement data. The values are arranged to create a report of the measured characteristic versus the one or more test parameters. Each of the values of the measured characteristic is classified into one of the value ranges. The report is marked according to the value ranges of the values of the measured characteristic.
    Type: Application
    Filed: June 27, 2010
    Publication date: August 25, 2011
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: CHIEN-HUNG LIU, HSIEN-CHUAN LIANG, SHOU-KUO HSU
  • SYSTEM AND METHOD FOR TESTING OBJECTS USING A MECHANICAL ARM
    Publication number: 20110196645
    Abstract: A system and method for testing objects using a mechanical arm sets one or more first positions. When a user selects one or more second positions of the mechanical arm, a distance between each of the second positions and each of the first positions is calculated. A nearest first position of each of the second positions is determined. Each of the second positions is stored in a test list corresponding to each of the nearest first positions. The mechanical arm is controlled to move to each of the nearest first positions, and tests objects located at the second positions stored in each test list corresponding to each of the nearest first positions.
    Type: Application
    Filed: June 27, 2010
    Publication date: August 11, 2011
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: HSIEN-CHUAN LIANG, SHEN-CHUN LI, SHOU-KUO HSU
  • ROBOT ARM
    Publication number: 20110192246
    Abstract: A robot arm includes a circular rack, an elongated first mounting member attached to the rack, and a second mounting member attached to the first mounting member. The first mounting member extends in a radius direction of the rack and moves in a circular trace along the rack. The second mounting member slides relative to the first mounting member along the radius direction, thereby defining a polar coordinate system in a plane defined by the rack to allow the second mounting member to flexibly locate at any desired positions in the plane.
    Type: Application
    Filed: March 23, 2010
    Publication date: August 11, 2011
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Shen-Chun Li, Shou-Kuo Hsu, Yung-Chieh Chen, Hsien-Chuan Liang
  • PROBE APPARATUS
    Publication number: 20110179660
    Abstract: An exemplary probe apparatus includes a fixture, a first probe assembly, a motor, a lead screw, two guide members, a second probe, and a reduction gear unit. The first probe assembly is fixedly attached to the fixture and includes a first probe. The motor has a drive shaft attached to the fixture. The lead screw is coupled to the fixture. The two guide members are attached to the fixture and parallel to the lead screw. The second probe assembly is moveably attached to the lead screw and the at least one guide member, and includes a second probe. The reduction gear unit is coupled to the drive shaft and the lead screw to transmit power from the motor to the second probe assembly through the lead screw. The second probe assembly is configured for moving the second probe towards or away from the first probe along the two guide members.
    Type: Application
    Filed: May 21, 2010
    Publication date: July 28, 2011
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: SHEN-CHUN LI, SHOU-KUO HSU, HSIEN-CHUAN LIANG, YING-TSO LAI
  • SYSTEM AND METHOD FOR MEASURING PIN VOLTAGES OF ELECTRONIC COMPONENTS
    Publication number: 20110161026
    Abstract: A system and method uses a measurement control device and a measurement machine to measure pin voltages of electronic components installed in an electronic device. The measurement control device controls a mechanical arm of the measurement machine to move to the pins of the electronic components according to coordinates of the pins. A voltage probe installed on the end of the mechanical arm can measure voltages of the pins automatically.
    Type: Application
    Filed: April 5, 2010
    Publication date: June 30, 2011
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: HSIEN-CHUAN LIANG, SHEN-CHUN LI, WEN-LAING TSENG, YUNG-CHIEH CHEN, SHOU-KUO HSU
  • TESTING APPARATUS
    Publication number: 20110140332
    Abstract: A testing apparatus is for testing products on an assembly line and includes a worktable, a positioning device, and a testing member. The worktable includes a number of wheels pivotably attached to a bottom thereof, and a number of retractable feet attached to the bottom thereof. The positioning device is attached to the worktable and includes a number of clamping members to position a product to be test. The testing member is attached to the worktable and operated by a control box to move a robot arm with a testing head to test the product.
    Type: Application
    Filed: February 4, 2010
    Publication date: June 16, 2011
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: SHEN-CHUN LI, SHOU-KUO HSU, YUNG-CHIEH CHEN, HSIEN-CHUAN LIANG
  • Methods and Compositions for Delivery of Catecholic Butanes for Treatment of Tumors
    Publication number: 20110135711
    Abstract: The present invention provides kits, methods and compositions for the treatment of diseases such as cancers. The compositions herein contain a substantially pure preparation of at least one catecholic butane, including, for example, NDGA compounds in a pharmaceutically acceptable carrier or excipient. The catecholic butane such as NDGA or its derivatives are administered to one or more subjects in need of treatment by a route other than direct injection into the affected tissues or topical application on affected tissues.
    Type: Application
    Filed: May 31, 2010
    Publication date: June 9, 2011
    Inventors: Ru Chih C. Huang, Richard Park, Chih-Chuan Chang, Yu-Chuan Liang, David Mold, Elaine Lin, Jonathan Heller, Neil Frazer
  • PRINTED CIRCUIT BOARD
    Publication number: 20110114379
    Abstract: A printed circuit board can support different connectors by selectively setting connection components on the printed circuit board without changing wiring of transmission lines or making new vias in the printed circuit board.
    Type: Application
    Filed: December 8, 2009
    Publication date: May 19, 2011
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: YUNG-CHIEH CHEN, CHENG-HSIEN LEE, SHOU-KUO HSU, SHEN-CHUN LI, HSIEN-CHUAN LIANG, SHIN-TING YEN
  • Soldering apparatus
    Patent number: 7942305
    Abstract: A soldering apparatus includes a base body, an actuator connected to the base body, and a pair of soldering arms connected to the actuator, each of the pair of soldering arms including a heating member and a soldering tip thermally coupled to the heating member. The pair of soldering arms is moveable and the actuator is controllable to move one soldering arm relative to the other soldering arm.
    Type: Grant
    Filed: June 24, 2010
    Date of Patent: May 17, 2011
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventors: Shen-Chun Li, Shou-Kuo Hsu, Yung-Chieh Chen, Hsien-Chuan Liang
  • RADIO FREQUENCY FILTER
    Publication number: 20110102103
    Abstract: Parameters of a radio frequency filter can be changed by changing structure of each component of the filter. Material of each component, diameters of each of magnetic cylinders, density of each of conductive coils, and thickness of each of dielectric layers can be changed. When any component needs to be replaced, the filter can be detached as needed.
    Type: Application
    Filed: December 16, 2009
    Publication date: May 5, 2011
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: SHEN-CHUN LI, SHOU-KUO HSU, YUNG-CHIEH CHEN, HSIEN-CHUAN LIANG
  • SYSTEM AND METHOD FOR CHECKING GROUND VIAS OF A CONTROLLER CHIP OF A PRINTED CIRCUIT BOARD
    Publication number: 20110106481
    Abstract: A system and method for checking a ground via of control chips of a printed circuit board (PCB) provides a graphical user interface (GUI) displaying a layout of the PCB. The control chip has a plurality of ground pins. The computer searches for signal path routing of each ground pin and ground vias along each signal path routing of each ground pin. If there are any ground vias having the same absolute coordinates, the computer determines that the ground vias are shared by more than one ground pin.
    Type: Application
    Filed: February 5, 2010
    Publication date: May 5, 2011
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: HSIEN-CHUAN LIANG, SHEN-CHUN LI, CHUN-JEN CHEN, SHOU-KUO HSU, YUNG-CHIEH CHEN, WEN-LAING TSENG
  • REVERSING TRANSMISSION
    Publication number: 20110094334
    Abstract: The REVERSING TRANSMISSION includes a shaft, a retainer, a spacing collar, a plurality of reversing members, two gears and two covers. The holder is sleeved on the shaft with spaced sliding notches formed thereon. The spacing collar is mounted on an outer surface of the retainer. The reversing members each includes two spaced swing plates with two reversed spiral teeth dented on two diagonal half surfaces of the two spaced swing plate. The reversing members slide into the sliding notches of the holder with two swing plates distributed at different side of the spacing collar. Each of the gears has a group of spiral teeth formed on the inner side for engaging with the group of spiral teeth of the reversing members, and cogs formed on the outer circumference surface. The covers are mounted on two opposite ends of the holder to keep the reversing member in position.
    Type: Application
    Filed: April 16, 2010
    Publication date: April 28, 2011
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: SHEN-CHUN LI, SHOU-KUO HSU, YUNG-CHIEH CHEN, HSIEN-CHUAN LIANG, SHIN-TING YEN, HUNG CHAO