Patents by Inventor Hsien-Chuan Liang
Hsien-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).
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Publication number: 20130067254Abstract: In a method for transmitting data between a host computer and a slave device, the host computer connects to a slave device through a data communication port. The slave device is equipped with a power supply that includes at least one capacitor. The power supply is charged through the host computer using the capacitor when the host computer is powered on. The method controls the host computer sends data to the slave device, and controls the capacitor to discharge to provide power to the slave device for a period of time when the host computer is powered off, and stores the data packet into the slave device during the period of time. The method further retrieves the data from the storage device when the host computer is powered on, and resends the data to the slave device through the data communication port.Type: ApplicationFiled: May 31, 2012Publication date: March 14, 2013Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: HSIEN-CHUAN LIANG, CHIH-CHUNG SHIH, SHOU-KUO HSU, YUNG-CHIEH CHEN
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Patent number: 8383957Abstract: A printed circuit board (PCB) includes two layers, two signal transmission traces, and a vertical interconnect access (via). The signal transmission traces are respectively arranged on the layers. The signal transmission traces are electrically connected to each other through the via. A centerline of the via with a vertical line of the layers form an acute angle ?, the angle ? is less than cos?1[(Lv2?Lt2)/(Lv2+Lt2)]. Wherein Lt is loss of the two signal transmitting traces in a unit length, and Lv is loss of the via in a unit length.Type: GrantFiled: September 3, 2010Date of Patent: February 26, 2013Assignee: Hon Hai Precision Industry Co., Ltd.Inventors: Shou-Kuo Hsu, Yung-Chieh Chen, Hsien-Chuan Liang, Wen-Laing Tseng, Shen-Chun Li, Chia-Nan Pai
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Publication number: 20130046504Abstract: In a method for testing integrity of signals transmitted from hard disk interfaces using a computing device, the computing device connects to an oscilloscope and a mechanical arm that is equipped with a test fixture. The mechanical arm controls the test fixture to make contact with one of the hard disk interfaces to be tested. The method adjusts an intensity grade of the signals through the hard disk interface, and controls the hard disk interface to produce a signal corresponding to the adjusted intensity grade. The test fixture obtains the signal from the hard disk interface, and the oscilloscope measures one or more test parameters of the signal. The method analyzes values of the test parameters to find an optimal signal, determines an intensity grade of the optimal signal as a driving parameter of the hard disk interface, and generates a test report of the hard disk interfaces.Type: ApplicationFiled: May 30, 2012Publication date: February 21, 2013Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: HUI-CHI LO, HSIEN-CHUAN LIANG, JUI-HSIUNG HO, SHOU-KUO HSU, CHENG-CHUNG HUANG, CHENG-HSIEN LEE
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Patent number: 8378761Abstract: 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, thickness of a dielectric layer, and thickness of an insulation tube can be changed. When any component needs to be replaced, each cover is rotated, with connection partitions move to two slots of an insulation portion, to detach the filter.Type: GrantFiled: December 23, 2009Date of Patent: February 19, 2013Assignee: Hon Hai Precision Industry Co., Ltd.Inventors: Shen-Chun Li, Shou-Kuo Hsu, Yung-Chieh Chen, Hsien-Chuan Liang
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Patent number: 8375460Abstract: 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: GrantFiled: August 12, 2010Date of Patent: February 12, 2013Assignee: Hon Hai Precision Industry Co., Ltd.Inventors: Hsien-Chuan Liang, Shen-Chun Li, Shou-Kuo Hsu
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Publication number: 20130036334Abstract: In a method for testing serial attached SCSI (SAS) ports of a server using a computing device, the computing device connects to an oscilloscope and a mechanical arm that is equipped with a test fixture having a probe. The mechanical arm controls the probe to be plugged into one of the SAS ports. The method adjusts an intensity grade of the SAS signals through the SAS port, and controls the SAS port to generate a SAS signal corresponding to the intensity grade. The test fixture obtains the SAS signal from the SAS port, and the oscilloscope measures test parameters of the SAS signal. The method analyzes values of the test parameters to find an optimal SAS signal, determines an intensity grade of the optimal SAS signal as a driving parameter of the SAS port, and accordingly generates a test report of the SAS ports.Type: ApplicationFiled: May 24, 2012Publication date: February 7, 2013Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: HSIEN-CHUAN LIANG, SHEN-CHUN LI, SHOU-KUO HSU, JUI-HSIUNG HO, CHIEN-HUNG LIU, CHENG-HSIEN LEE
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Patent number: 8359944Abstract: 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: GrantFiled: March 23, 2010Date of Patent: January 29, 2013Assignee: Hon Hai Precision Industry Co., Ltd.Inventors: Shen-Chun Li, Shou-Kuo Hsu, Yung-Chieh Chen, Hsien-Chuan Liang
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Publication number: 20130013962Abstract: In a method for analyzing integrality of serial attached SCSI (SAS) signals using a computing device, the computing device connects to a signal measuring device and an electronic device. A group of test parameters, an intensity grade of a SAS signal, and a total number are set for evaluating integrality of the SAS signal. The intensity grade of the SAS signal is adjusted through an SAS interface of the electronic device. The signal measuring device measures test parameters of the SAS signal, and a test number is recorded when the test parameters of the SAS are measured. The method analyzes the integrality of the SAS signal to find an optimal SAS signal when the test number equals the total number, and determines an intensity grade of the optimal SAS signal as a driving parameter of the SAS interface.Type: ApplicationFiled: May 24, 2012Publication date: January 10, 2013Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: HSIEN-CHUAN LIANG, SHEN-CHUN LI, SHOU-KUO HSU, JUI-HSIUNG HO, CHENG-HSIEN LEE, CHUN-NENG LIAO
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Publication number: 20120327550Abstract: An exemplary antistatic device includes an electricity receiving part and an electricity discharging part. Guiding portions protrude from the electricity receiving part. The electricity discharging part is located at a side of the electricity receiving part, and oriented toward and spaced from the guiding portions of the electricity receiving part. The electricity discharging part is electrically conductive and capable of being grounded. Static electricity accumulated on the electricity receiving part is removable to the electricity discharging part via the guiding portions.Type: ApplicationFiled: September 20, 2011Publication date: December 27, 2012Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: YU-CHANG PAI, SHEN-CHUN LI, HSIEN-CHUAN LIANG
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Patent number: 8330554Abstract: 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, thickness of a dielectric layer, and thickness of an insulation tube can be changed. When any component needs to be replaced, each cover is rotated, with connection partitions move to two slots of a resisting portion, to detach the filter.Type: GrantFiled: December 3, 2009Date of Patent: December 11, 2012Assignee: Hon Hai Precision Industry Co., Ltd.Inventors: Shen-Chun Li, Shou-Kuo Hsu, Yung-Chieh Chen, Hsien-Chuan Liang
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Patent number: 8332177Abstract: A method for testing a characteristic impedance of a signal path routing of a printed circuit board (PCB) controls the test device to test a characteristic impedance of the signal path routing of the PCB to get test data of the signal path routing of the PCB. The method further analyzes the test data of the signal path routing of the PCB get analysis results, generate a test report for storing the test data of each signal path routing of the PCB and the analysis results if all signal path routings of the PCB have been tested.Type: GrantFiled: March 26, 2010Date of Patent: December 11, 2012Assignee: Hon Hai Precision Industry Co., Ltd.Inventors: Hsien-Chuan Liang, Shen-Chun Li, Shou-Kuo Hsu, Yung-Chieh Chen
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Publication number: 20120273258Abstract: A printed circuit board includes a first signal layer, a first reference layer, a second signal layer, and a third signal layer in that order and includes a first slanted via and a second slanted via. The first signal layer includes an parallel first transmission wire and a second transmission wire. The first and second transmission wires are coupled with each other and cooperatively constitute a first differential pair with an edge-coupled structure. The second signal layer includes a third transmission wire. The third signal layer includes a fourth transmission wire parallel to and coupled with the third transmission wire. The third and fourth transmission wires cooperatively constitute a second differential pair with a broadside-coupled structure. The first slanted via obliquely are interconnected between the first transmission wire and the third transmission wire. The second slanted via obliquely are interconnected between the second transmission wire and the fourth transmission wire.Type: ApplicationFiled: June 9, 2011Publication date: November 1, 2012Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: YUNG-CHIEH CHEN, SHOU-KUO HSU, HSIEN-CHUAN LIANG, SHIN-TING YEN, DAN-CHEN WU
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Patent number: 8302045Abstract: An electronic device and method for inspecting electrical rules of circuit boards includes selecting at least two design files that record electrical rules of the circuit boards and searching the electrical rules in the selected design files using preset parameter keywords. Same electrical rules of the selected design files are acquired by comparing the electrical rules in the selected design files. The same electrical rules and corresponding parameter values are input to a comparison table, and the comparison table is output.Type: GrantFiled: December 13, 2010Date of Patent: October 30, 2012Assignee: Hon Hai Precision Industry Co., Ltd.Inventors: Yung-Chieh Chen, Hsien-Chuan Liang, Shin-Ting Yen, Shen-Chun Li, Shou-Kuo Hsu
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Patent number: 8301405Abstract: 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: GrantFiled: April 5, 2010Date of Patent: October 30, 2012Assignee: Hon Hai Precision Industry Co., Ltd.Inventors: Hsien-Chuan Liang, Shen-Chun Li, Wen-Laing Tseng, Yung-Chieh Chen, Shou-Kuo Hsu
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Publication number: 20120268283Abstract: A circuit board includes a current balancing unit that receives a number of current values from ammeters. A minimum current value between the current values is determined by the current balancing unit. Resistance of one or more variable resistors of the current balancing unit is adjusted by the current balancing unit to make the current value from one or more the ammeters serially connected to the one or more the variable resistors to be substantially equal to the minimum current value.Type: ApplicationFiled: June 24, 2011Publication date: October 25, 2012Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: SHOU-KUO HSU, YUNG-CHIEH CHEN, HSIEN-CHUAN LIANG, SHEN-CHUN LI, WEN-LAING TSENG, CHIA-NAN PAI
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Publication number: 20120269471Abstract: An exemplary guideway mechanism includes two branches, a group of connecting blocks, and a supporting bracket. The group of connecting blocks includes four connecting blocks arranged at four corners of an imaginary square and connecting the supporting bracket. Each branch includes two parallel rails. Adjacent ends of the rails of each branch respectively connect two adjacent connecting blocks.Type: ApplicationFiled: July 13, 2011Publication date: October 25, 2012Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: SHEN-CHUN LI, HSIEN-CHUAN LIANG, SHOU-KUO HSU
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Publication number: 20120241232Abstract: An actuating mechanism includes first and second hollow outer shafts, two rotating wheels located between the first and second outer shafts, and an inner shaft received in the second outer shaft. Each of the first and second outer shafts forms a connecting portion at one end thereof. Each connecting portion defines two receiving holes. Each rotating wheel includes a body and a rod extending through the body. The bodies of the rotating wheels are in contact with each other. Two ends of the rod of each rotating wheel are correspondingly received in the receiving holes of the first and second outer shafts to connect the first and second outer shafts together. One end of the inner shaft contacts the rod of one rotating wheel. The inner shaft is rotatable in the second outer shaft to drive the two rotating wheels to rotate.Type: ApplicationFiled: June 30, 2011Publication date: September 27, 2012Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: SHEN-CHUN LI, HSIEN-CHUAN LIANG, SHOU-KUO HSU
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Patent number: 8275369Abstract: A method of automatically testing a mobile communication terminal selects a communication frequency band for testing the mobile communication terminal. The mobile communication terminal switches to the selected communication frequency band. One or more service modes, of the mobile communication terminal, which need to be tested under the selected communication frequency band are selected, and a test sequence of the one or more service modes is set. The mobile communication terminal using one of the service modes. Test data of the mobile communication terminal is obtained according to a preset use duration, a test frequency and the test interval of each service mode. A report is generated using the test data.Type: GrantFiled: November 10, 2011Date of Patent: September 25, 2012Assignee: Hon Hai Precision Industry Co., Ltd.Inventors: Shen-Chun Li, Hsien-Chuan Liang, Chun-Neng Liao, Shou-Kuo Hsu
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Patent number: 8272141Abstract: 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: GrantFiled: May 21, 2010Date of Patent: September 25, 2012Assignee: Hon Hai Precision Industry Co., Ltd.Inventors: Shen-Chun Li, Shou-Kuo Hsu, Hsien-Chuan Liang, Ying-Tso Lai
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Patent number: 8269506Abstract: A signal integrity test system and method uses an oscilloscope to test a signal on each test point of a transmission line, obtains test parameter values of the signal on each test point, and compares the test parameter values with preset standard values. If any test parameter value does not match a corresponding preset standard value, a time-domain reflectometer is used to test an impedance value of the test point. If the impedance value matches a standard impedance value of the transmission line, the system and method determines the signal on the test point satisfies integrity requirements.Type: GrantFiled: August 12, 2010Date of Patent: September 18, 2012Assignee: Hon Hai Precision Industry Co., Ltd.Inventors: Hsien-Chuan Liang, Shen-Chun Li, Shou-Kuo Hsu