Patents by Inventor Xiao-Lin Gan
Xiao-Lin Gan 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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Patent number: 8242749Abstract: A battery testing apparatus includes a charge circuit, a discharge circuit, a computer, and a control circuit. The charge circuit is coupled to a direct current (DC) adapter, the DC adapter charges a battery through the charge circuit. The discharge circuit is coupled to the battery and configured to discharge the battery. The computer records charge/discharge time and charge/discharge cycles of the battery, and calculates capacity and cycle life of the battery according to the time and cycles of charge and discharge. The control circuit has an input terminal coupled to the computer, and a plurality of output terminals respectively coupled to the charge circuit and the discharge circuit, the control circuit controls the charge and discharge circuits charging and discharging the battery.Type: GrantFiled: December 28, 2007Date of Patent: August 14, 2012Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.Inventors: Ren-Jun Xiao, Xiao-Lin Gan, Yu-Kuang Ho
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Patent number: 8090121Abstract: An audio adapter includes a first audio interface, a second audio interface, and two second amplifiers. The power pin of the second audio interface is connected to the non-inverting terminals of the two amplifiers. The left and right ear audio pins of the second audio interface are respectively connected to the inverting terminals of the first and the second amplifiers via two current-limiting resistors respectively. Two variable resistors are respectively connected between the inverting terminal and the output terminal of the two amplifiers. The output terminals of the two amplifiers are respectively connected to the left and right ear audio interface of the first audio interface and respectively connected to the ground pin of the first audio interface via two voltage-limiting resistors respectively.Type: GrantFiled: December 11, 2007Date of Patent: January 3, 2012Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.Inventors: Chang-Chun Liu, Xiao-Lin Gan, Yu-Kuang Ho
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Patent number: 7930579Abstract: A voltage test circuit for testing a computer power supply includes a voltage input unit configured for receiving voltages from the computer power supply, a voltage output unit configured for outputting the voltages to a plurality of electrical loads, a test unit, a switch control unit, and a capacitive load module. The test unit is connected between the voltage input unit and the voltage output unit for testing output ripple and noise of the voltages. The capacitive load module includes a plurality of capacitive loads. The switch control unit is connected between the voltage input unit and the capacitive module for selecting a suitable capacitive load according to the computer power supply.Type: GrantFiled: October 10, 2007Date of Patent: April 19, 2011Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.Inventors: Zhi-Sheng Yuan, Ren-Jun Xiao, Xiao-Lin Gan, Yu-Kuang Ho
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Patent number: 7868593Abstract: A charging circuit of a portable device includes a switch circuit having an input connected to a storage battery of the portable device for triggering the storage battery to supply power to an electronic device, a reference voltage circuit, a regulating circuit, a filter circuit filtering voltage signals from the storage battery, a collecting circuit, a comparator circuit, a rectangular generator, an integral circuit, and a driving circuit. The reference voltage circuit and the collecting circuit respectively output a reference voltage signal and a collecting voltage signal to the comparator circuit. The rectangular wave generator outputs a rectangular wave to the integral circuit. The integral circuit outputs a triangle wave signal to the driving circuit. The driving circuit outputs a pulse width modulation (PWM) signal to drive the regulating circuit to charge the electronic device.Type: GrantFiled: January 30, 2008Date of Patent: January 11, 2011Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry co., Ltd.Inventors: Chang-Chun Liu, Xiao-Lin Gan, Yu-Kuang Ho
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Patent number: 7850316Abstract: An adjusting apparatus is provided for a projector having a base. The adjusting apparatus includes a supporting member and a rotating member. The supporting member is partially received in the base of the projector and movably coupled to the base. The supporting member forms a plurality of teeth thereon. The rotating member is rotatably coupled to the base of the projector and partially exposed out of the base. The rotating member forms a plurality of teeth mating with the teeth of the supporting member, when the rotating member is rotated in either of two directions, the base of the projector correspondingly moves up and down relative to the supporting member.Type: GrantFiled: December 11, 2007Date of Patent: December 14, 2010Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.Inventors: Chang-Chun Liu, Xiao-Lin Gan, Yu-Kuang Ho
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Patent number: 7782531Abstract: A portable projector screen assembly includes a roller, two cylinders slidably connected to two ends of the roller respectively, a collapsible member connected to the roller, and a screen. The collapsible member includes a plurality of interconnected pieces. Two free ends of the collapsible member are fixed to free ends of the cylinders respectively. The screen includes a plurality of fixing portions, and the fixing portions are respectively connected to joints of each two pieces of the collapsible member.Type: GrantFiled: December 29, 2007Date of Patent: August 24, 2010Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.Inventors: Qiang Zhu, Xiao-Lin Gan, Yu-Kuang Ho
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Patent number: 7782301Abstract: An exemplary system for verifying DPI values of computer mice is disclosed. The system comprises: a stepper motor connected with a horizontal servo axle and controlling the horizontal servo axle to perform back and forth movements which drives the computer mice to move in a straight line back and forth; a computer configured for receiving measurement parameters, for sending move instructions to the stepper motor, for recording initial coordinates of a computer pointer of the computer mice and current coordinates of the mouse pointers of the computer mice, and calculating DPI values according to the initial coordinates and the current coordinates; and a servo controller electrically connected between the computer and the stepper motor for sending impulse control signals to control operations of the stepper motor. A related method is also disclosed.Type: GrantFiled: August 27, 2007Date of Patent: August 24, 2010Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.Inventors: Li-Rong Tan, Xiao-Lin Gan, Yu-Kuang Ho
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Patent number: 7760600Abstract: A method for testing a burner includes the steps of: providing a rewriter (RW) disk (4) in good burning condition, and inserting the RW disk into a test burner (3) connected to a computer (1); selecting a burner type for the burner; designating a source file to be burned, and setting a counter J=0, a loop time N and a maximum time of fail test M; erasing all data on the RW disk; burning the source file onto the RW disk; determining whether the source file is successfully burned to the RW disk; executing J=J+1 if the source file is successfully burned to the RW disk; repeating the erasing step, the burning step and the determining step, and counting a time of successfully burned process by the counter J, until J=N?M+1 which denotes that the burner is in good burning condition. A related method for testing a RW disk is also provided.Type: GrantFiled: July 16, 2007Date of Patent: July 20, 2010Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.Inventors: Shan-Ming Liao, Ren-Bo Huang, Xiao-Lin Gan, Yu-Kuang Ho
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Patent number: 7755221Abstract: An exemplary electronic device includes a power module having an anode and a cathode; an audio module having an audio signal terminal and a ground terminal; an audio socket having an audio signal terminal and a ground terminal; a first relay-switch; a second relay-switch; and a power adapter having an audio plug, wherein the audio terminal of the audio socket is selectively connected to the anode of the power module and the audio signal terminal of the audio module via the first relay-switch, the ground terminal of the audio socket is selectively connected to the cathode of the power module and the ground terminal of the audio module via the second relay-switch, the audio terminal and the ground terminal of the audio socket are connected to the anode and cathode of the power module when the audio plug is plugged into the audio socket.Type: GrantFiled: December 20, 2007Date of Patent: July 13, 2010Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.Inventors: Chang-Chun Liu, Xiao-Lin Gan, Yu-Kuang Ho
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Patent number: 7679220Abstract: An electronic time switch control circuit includes a power supply, an oscillation period control module, an oscillator, and a switch control module. The power supply supplies power to the oscillation period module, the oscillator, and the switch control module. The oscillation period module supplies periodic signals to the oscillator. The oscillator alternately outputs two kinds of control signals to the switch control module according to the periodic signals. The switch control module receives the two kinds of control signals, and correspondingly controls an electronic product to be turned on and off repeatedly.Type: GrantFiled: September 26, 2007Date of Patent: March 16, 2010Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.Inventors: Hong-Chang Yu, Xiao-Lin Gan, Yu-Kuang Ho
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Patent number: 7656658Abstract: A mounting apparatus is provided to readily fix a data storage device defining at least one hole in place. The mounting apparatus includes a bracket fastened to a computer enclosure, and the bracket includes a side panel and at least one elastic tab formed at or attached to the side panel corresponding to the hole of the data storage device. The elastic tab includes a fixing portion, for engaging in the hole of the storage device, and an operation portion positioned outside the bracket for manipulating the elastic tab.Type: GrantFiled: August 6, 2007Date of Patent: February 2, 2010Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.Inventors: Chang-Chun Liu, Xiao-Lin Gan, Yu-Kuang Ho
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Patent number: 7656654Abstract: A mounting apparatus for a storage device includes a bracket configured for receiving the storage device and including a sidewall defining a through hole therein, a latching member pivotally mounted to the bracket and including a latching protrusion extending through the through hole of the bracket for fixing the storage device, a rotating mechanism connected between the bracket and the latching member to enable the latching member to rotate relative to the bracket, and an elastic member connected between the bracket and the latching member for urging the latching member toward the side wall of the bracket.Type: GrantFiled: December 29, 2007Date of Patent: February 2, 2010Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.Inventors: Chang-Chun Liu, Xiao-Lin Gan, Yu-Kuang Ho
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Patent number: 7636241Abstract: A heat dissipating device includes a heat sink, and a block. The heat sink includes a base and a plurality of fins formed on the base. A bottom portion of the base defines a first groove. The block defines a second groove in one surface of the block. The block is received in the first groove, and an electronic component is received in the second groove.Type: GrantFiled: December 17, 2007Date of Patent: December 22, 2009Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.Inventors: Chang-Chun Liu, Xiao-Lin Gan, Yu-Kuang Ho
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Patent number: 7594744Abstract: A backlight module includes a light source and a light guide plate. The light guide plate includes a base plate and a reflecting film. The base plate has an upper surface on which a plurality of protrusions is formed, a curved bottom surface opposite to the upper surface, and a housing defined therein. The light source is accommodated in the housing. The reflecting film is plated on the curved bottom surface, for reflecting the light beams reaching the curved bottom surface to emit from the upper surface. The plurality of protrusions diffuses light beams.Type: GrantFiled: July 26, 2007Date of Patent: September 29, 2009Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.Inventors: Chang-Chun Liu, Xiao-Lin Gan, Yu-Kuang Ho
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Patent number: 7576974Abstract: A flat panel display device includes a display, a connector secured to a bottom of the display, and a stand. The connector includes a pivot portion and two opposing arm portions extending from the pivot portion. The stand includes a top wall with a receiving space defined thereunder. The top wall defines a mounting channel therein. The mounting channel includes a receiving groove for pivotably receiving the pivot portion of the connector, and two opposing passing grooves extending from the receiving groove to allow the corresponding arm portions to pass therethrough and enter into the receiving space. The flat panel display device with simple structure is easy for use, assembly and disassembly.Type: GrantFiled: October 30, 2007Date of Patent: August 18, 2009Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.Inventors: Chang-Chun Liu, Guo-Fu Guo, Xiao-Lin Gan, Yu-Kuang Ho
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Patent number: 7570073Abstract: A system for testing power supply performance is provided. The system includes a power supply having a plurality of outputs for outputting voltages, a plurality of display units corresponding to the plurality of outputs, for reflecting performance of the power supply, a plurality of resistance-matching selectors corresponding to the plurality of outputs, for supplying selective resistance, a voltage adjustable direct current source, and a selective switch. The display units are connected between first terminals of the outputs and the resistance-matching selectors, respectively. The resistance-matching selectors are in turn connected to ground. The voltage adjustable direct current source has a pole selectively connected to a second terminal of one of the outputs via the selective switch, and another pole grounded.Type: GrantFiled: August 6, 2007Date of Patent: August 4, 2009Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.Inventors: Ren-Jun Xiao, Xiao-Lin Gan, Yu-Kuang Ho
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Publication number: 20090160398Abstract: A charging circuit of a portable device includes a switch circuit having an input connected to a storage battery of the portable device for triggering the storage battery to supply power to an electronic device, a reference voltage circuit, a regulating circuit, a filter circuit filtering voltage signals from the storage battery, a collecting circuit, a comparator circuit, a rectangular generator, an integral circuit, and a driving circuit. The reference voltage circuit and the collecting circuit respectively output a reference voltage signal and a collecting voltage signal to the comparator circuit. The rectangular wave generator outputs a rectangular wave to the integral circuit. The integral circuit outputs a triangle wave signal to the driving circuit. The driving circuit outputs a pulse width modulation (PWM) signal to drive the regulating circuit to charge the electronic device.Type: ApplicationFiled: January 30, 2008Publication date: June 25, 2009Applicants: HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD, HON HAI PRECISION INDUSTRY CO., LTD.Inventors: CHANG-CHUN LIU, XIAO-LIN GAN, YU-KUANG HO
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Patent number: 7544089Abstract: An adapter includes a first USB interface, a second USB interface, and an audio interface. The first and the second USB interfaces each have a power pin, a first data pin, a second data pin, and a ground pin. The pins of the first USB interface respectively connected to the pins of the second USB interface correspondingly. The audio interface includes a left ear audio pin, a right ear audio pin, and a ground pin. The left ear audio pin of the audio interface is connected to the first data pin of the second USB interface. The right ear audio pin of the audio interface is connected to the second data pin of the second USB interface.Type: GrantFiled: December 11, 2007Date of Patent: June 9, 2009Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.Inventors: Chang-Chun Liu, Xiao-Lin Gan, Yu-Kuang Ho
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Publication number: 20090140790Abstract: An exemplary electronic device includes a power module having an anode and a cathode; an audio module having a first audio signal terminal, a second audio signal terminal and a ground terminal; and an audio socket having a first audio signal terminal, a second audio signal terminal connected to the second audio terminal of the audio module, and a ground terminal, wherein the first audio terminal of the audio socket is selectively connected to the anode of the power module and the first audio signal terminal of the audio module via a first switch, the ground terminal of the audio socket is selectively connected to the cathode of the power module and the ground terminal of the ground module of the audio module via a second switch. Therefore, users can charge the electronic device via the audio interface.Type: ApplicationFiled: December 20, 2007Publication date: June 4, 2009Applicants: HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD., HON HAI PRECISION INDUSTRY CO., LTD.Inventors: CHANG-CHUN LIU, XIAO-LIN GAN, YU-KUANG HO
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Publication number: 20090140578Abstract: An exemplary electronic device includes a power module having an anode and a cathode; an audio module having an audio signal terminal and a ground terminal; an audio socket having an audio signal terminal and a ground terminal; a first relay-switch; a second relay-switch; and a power adapter having an audio plug, wherein the audio terminal of the audio socket is selectively connected to the anode of the power module and the audio signal terminal of the audio module via the first relay-switch, the ground terminal of the audio socket is selectively connected to the cathode of the power module and the ground terminal of the audio module via the second relay-switch, the audio terminal and the ground terminal of the audio socket are connected to the anode and cathode of the power module when the audio plug is plugged into the audio socket.Type: ApplicationFiled: December 20, 2007Publication date: June 4, 2009Applicants: HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD., HON HAI PRECISION INDUSTRY CO., LTD.Inventors: CHANG-CHUN LIU, XIAO-LIN GAN, YU-KUANG HO