Patents by Inventor Wen Chi

Wen Chi 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).

  • Gasket and pipe joint using the same
    Publication number: 20090315274
    Abstract: The present invention discloses a gasket and a pipe joint using the same, which can achieve airtightness with a locking torque smaller than that used conventionally. The gasket of the present invention is interposed in between two coupling faces of a first pipe and a second pipe interconnecting to the first pipe, and each of the two coupling faces has at least one annular protrudent strip. The gasket of the present invention is characterized in that the gasket has at least one annular reception/contact member corresponding to the annular protrudent strip, and that the annular protrudent strip is pressed against the annular reception/contact member to form a twofold airtight mechanism with an inner annular contact area and an outer annular contact area. Thereby, the present invention can effectively promote the airtightness of the two coupling faces of the first pipe and the second pipe.
    Type: Application
    Filed: September 5, 2008
    Publication date: December 24, 2009
    Inventor: Wen-Chi Wu
  • Sigma-delta modulator and an output rate reduction method thereof
    Patent number: 7633418
    Abstract: A sigma-delta modulator and an output rate reduction method are disclosed. The sigma-delta modulator comprises an integrator, an analog-to-digital converter, and a controller. An input signal is received by the integrator to generate an integrated signal. The integrated signal is then converted by the analog-to-digital converter into a digital modulation signal. The input signal is received by the controller to calculate an input signal power. The analog-to-digital converter can be controlled by the controller based on a predetermined power value and a sum of the input signal power and a total quantization error power. By the way mentioned above, the out rate of the sigma-delta modulator is reduced.
    Type: Grant
    Filed: May 8, 2007
    Date of Patent: December 15, 2009
    Assignee: Realtek Semiconductor Corp.
    Inventor: Wen-Chi Wang
  • SERIES-TYPE LED LAMP STRIP MODULE
    Publication number: 20090302771
    Abstract: A series-type LED lamp strip module includes a first LED lamp strip module and a second LED lamp strip module. The first LED lamp strip module and the second LED lamp strip module both include a power switch controller, at lease one LED lamp strip, a signal output adaptor, a signal input adaptor, a power plug, and a power socket. The power plug of the second LED lamp strip module is inserted into the power socket of the first LED lamp strip module, and the signal output adaptor of the first LED lamp strip module is electrically connected to the signal input adaptor of the second LED lamp strip module so as to connect the first LED lamp strip module and the second LED lamp strip module. In addition, a microcontroller unit outputs a control signal to lighten light emitting diodes in different types to produce multiple brightness variations.
    Type: Application
    Filed: June 9, 2008
    Publication date: December 10, 2009
    Inventor: Wen-Chi PENG
  • Optical measuring system with a high-speed optical sensing device enabling to sense luminous intensity and chromaticity
    Patent number: 7626688
    Abstract: A high-speed optical sensing device is provided in the present invention. The high-speed optical sensing device has an optical detector, a lens set, and a beam splitter. The optical detector is utilized for detecting luminous intensity. The lens set is utilized for concentrating light beams toward a color analyzer. The beam splitter is aligned to the illuminating device to be detected and is utilized to separate the light beam generated by the illuminating device to the optical detector and the lens set simultaneously.
    Type: Grant
    Filed: March 26, 2008
    Date of Patent: December 1, 2009
    Assignee: Chroma Ate Inc.
    Inventors: Tsung-Hsien Ou, Hsin-Yueh Sung, Hong-Da Jian, Chi-Cheng Kuan, Wen-Chi Luo
  • COMPUTER SYSTEM AND A SWITCHING METHOD FOR THE SAME
    Publication number: 20090292992
    Abstract: A switching method includes: when a control unit receives a first command signal and determines that a host computing device is turned off and a power source is disabled, configuring the control unit to operate a switch unit in a first switch state and to enable the power source, thereby enabling audio and video playback of the host computing device; and when the control unit receives a second command signal and determines that the host computing device is turned off and the power source is disabled, configuring the control unit to operate the switch unit in a second switch state and to enable the power source, thereby enabling audio and video playback of an audio-and-video reproducing device. A computer system that includes the control unit, the host computing device, the power source, the switch unit, and the audio-and-video reproducing device is also disclosed.
    Type: Application
    Filed: July 30, 2009
    Publication date: November 26, 2009
    Applicant: MICRO-STAR INTERNATIONAL CO., LTD
    Inventors: Wen-Chi CHENG, Chung-Wen Chen
  • PARALLEL TYPE SINGLE-WIRE ADDRESSABLE LIGHTING DEVICE
    Publication number: 20090289578
    Abstract: A parallel type single-wire addressable light device includes a microprocessor, at least one lighting module and at least one signal amplifier. The microprocessor includes an address transmission line and a data transmission line. The plurality of lighting modules is composed of a control driver and at least one lamp set, and the control driver is connected in parallel to the microprocessor through the address transmission line and the data transmission line. The signal amplifier is electrically connected between the microprocessor and the control driver. The address transmission line of the microprocessor transmits an address define signal to set the address of each lighting module, and then the data transmission line outputs data to control any one or any two or more lighting modules for controlling a change of light.
    Type: Application
    Filed: May 13, 2009
    Publication date: November 26, 2009
    Inventor: Wen-Chi PENG
  • Multi-band antenna
    Patent number: 7623074
    Abstract: A multi-band antenna, it comprises: a grounding surface, a supporting base and a radiative metallic portion; the grounding surface has a first shorting point and a second shorting point; the radiative metallic portion is attached to a bottom surface of the supporting base, and includes: a first radiative metallic wire, a radiative metallic sheet, a second radiative metallic wire and a parasitic radiative metallic arm.
    Type: Grant
    Filed: January 19, 2008
    Date of Patent: November 24, 2009
    Assignees: Auden Techno Corp., National Sun Yat-Sen University
    Inventors: Yun-Wen Chi, Kin-Lu Wong
  • ELECTRONIC DEVICE AND USER INTERFACE DISPLAY METHOD THEREOF
    Publication number: 20090288032
    Abstract: An electronic device and a user interface display method thereof are provided. The method includes the following steps. First, organize a plurality of computer programs and a web browser executable on the electronic device into a virtual book. Each page of the virtual book includes a user interface of one of the computer programs or a web page displayed by the web browser. Next, display one of the pages as a current page so that the user interface or the web page of the current page is accessible to a user of the electronic device. Next, display a stand-up view of the virtual book in response to a first operating action performed by the user. The stand-up view includes a plurality of the pages adjacent to the current page and a virtual switch attached to a side of the virtual book.
    Type: Application
    Filed: December 30, 2008
    Publication date: November 19, 2009
    Applicant: HTC CORPORATION
    Inventors: Wen-Chi Chang, Yi-Hua Wang, Tai-Ling Lu
  • Couple-fed multi-band loop antenna
    Publication number: 20090273530
    Abstract: The present invention is related to a coupled-fed multi-band loop antenna. The antenna comprises a dielectric substrate, a ground plane located on the dielectric substrate and has a grounding point, a radiating portion which comprise a supporter, a coupling trip and a loop strip, and a matching circuit. The coupling strip and loop strip are both located on the supporter, with the coupling strip surrounded by the loop strip. The length of loop strip is about 0.25 wavelength of the antenna's first resonant mode. The loop strip has a first end paralleling with the coupling loop, a second end and a shorting point near the second end and electrically connected to the grounding point on the ground plane. The matching circuit is on the dielectric substrate. One terminal of the matching circuit is connected to the coupling strip, and the other is connected to a signal source.
    Type: Application
    Filed: September 29, 2008
    Publication date: November 5, 2009
    Applicant: ACER INCORPORATED
    Inventors: Yun-Wen Chi, Kin-Lu Wong
  • Apparatus for dynamic deployment of pin functions on a chip
    Patent number: 7612581
    Abstract: An apparatus for dynamic deployment of pin functions on a chip is disclosed in the present invention. The apparatus comprises: an input pin receiving unit, capable of integrating a plurality of pins and selecting pin functions according to a program; an output pin control unit, capable of issuing a control signal to the plurality of pins; and a signal control unit, controlled by the program and coupled to the input pin receiving unit and the output pin control unit so as to communicate therebetween; wherein the pin functions are designated by the user to select an output signal for each of the plurality of pins according to the program.
    Type: Grant
    Filed: April 8, 2008
    Date of Patent: November 3, 2009
    Assignee: Holtek Semiconductor Inc.
    Inventors: Wen-Chi Hsu, Jen-Ho Kan, Jia-Jou Tsai
  • Method of forming an electrode including an electrochemical catalyst layer
    Publication number: 20090263569
    Abstract: A method of forming an electrode having an electrochemical catalyst layer is disclosed, which comprises providing a substrate with a conductive layer formed on the surface of a substrate, conditioning the surface of the substrate, immersing the substrate in a solution containing polymer-capped noble metal nanoclusters dispersed therein to form a polymer-protected electrochemical catalyst layer on the conditioned surface of the substrate, and thermally treating the polymer-protected electrochemical catalyst layer at a temperature approximately below 300° C.
    Type: Application
    Filed: June 18, 2008
    Publication date: October 22, 2009
    Inventors: Chao Peng, Jo-Lin Lan, Ya-Huei Chang, Wen-Chi Hsu, Hai-Peng Cheng, Shien-Ping Feng, Wen-Hsiang Chen, Tzu-Chien Wei
  • METHOD FOR MANUFACTURING A LOUDSPEAKER HAVING A VOICE COIL ASSEMBLY
    Publication number: 20090262959
    Abstract: A method for manufacturing a loudspeaker having a voice coil assembly includes the steps of: producing a flat voice coil; placing the voice coil into an injecting mold of a vibrating slab; forming a locating section to secure the voice coil; and assembling a loudspeaker by coupling the vibrating slab with a membrane together to produce a better sound quality. Furthermore, upper suspending arms provided on respective sides of the vibrating slab may be cut to lower the rigidity character of the vibrating slab and to increase the vibrating effect.
    Type: Application
    Filed: April 17, 2008
    Publication date: October 22, 2009
    Applicant: HSIUPING INSTITUTE OF TECHNOLOGY
    Inventors: JIA-HROUNG WU, TAI-YAN KAM, WEN-CHI FU, WEN-LAN WU
  • Multiband folded loop antenna
    Publication number: 20090256763
    Abstract: The present invention relates to a multiband folded loop antenna comprising a dielectric substrate, a ground plane, a radiating portion and a matching circuit. The ground plane is located on the dielectric substrate and has a grounding point. The radiating portion comprises a supporter, a loop strip, and a tuning patch. The loop strip has a length about half wavelength of the antenna's lowest resonant frequency. The loop strip has a feeding end and a grounding end, with the grounding end electrically connected to the grounding point on the ground plane. The loop strip is folded into a three-dimensional structure and is supported by the supporter. The tuning patch is electrically connected to the loop strip. The matching circuit is located on the dielectric substrate with one terminal electrically connected to the feeding end of the loop strip and another terminal to a signal source.
    Type: Application
    Filed: June 16, 2008
    Publication date: October 15, 2009
    Applicant: ACER INCORPORATED
    Inventors: Yun-Wen Chi, Kin-Lu Wong
  • Structure of a voice coil assembly
    Publication number: 20090226027
    Abstract: A structure of a voice coil assembly includes a plate, a top board, suspending arms and fixtures. The plate has a top and two opposite sides. The top board is disposed on the top of the plate. The suspending arms extend from the two sides of the plate and are connected to the fixtures. A pair of resilient sections is provided between the suspending arms and the fixtures. The resilient sections are formed in a curved, arcuate or wavy shape. The suspending arm has a cross-section in a flat shape.
    Type: Application
    Filed: March 10, 2008
    Publication date: September 10, 2009
    Inventors: Jia-Hroung Wu, Wen-Chi Fu, Wen-Lan Wu, Yi-Ta Tsai, Yong-Siang Chen, Hsiu-Hui Chu, Chyau-Wen Jiang, Yu-Jung Chen
  • Broadband antenna
    Patent number: 7586456
    Abstract: A broadband antenna includes a dielectric substrate, a radiation conductor and a feeding gap. The radiation conductor is disposed on the dielectric substrate and has a first side and a second side. The first side is adjacent to the second side, and the first side is longer than the second side. The second side has a first feeding point and a second feeding point. The feeding gap has a first end located at the first side and a second end located at the second side. The feeding gap divides the radiation conductor into a first sub-radiation conductor and a second sub-radiation conductor. The first feeding point is located on the first sub-radiation conductor and the second feeding point is located on the second sub-radiation conductor.
    Type: Grant
    Filed: August 14, 2006
    Date of Patent: September 8, 2009
    Assignees: Industrial Technology Research Institute, National Sun Yat-Sen University
    Inventors: Shih-Huang Yeh, Kin-Lu Wong, Yun-Wen Chi
  • Signal processing system capable of changing signal levels
    Patent number: 7583213
    Abstract: A signal processing system for changing a level of an input signal to generate an output signal is disclosed. The signal processing system includes a shifter, a sigma-delta modulator, and a level adjuster. The shifter is utilized for receiving the input signal and for bit-shifting the input signal according to a first predetermined gain to generate a first adjustment signal. The sigma-delta modulator is utilized for generating the output signal according a second adjustment signal and the first adjustment. The level adjuster is utilized for adjusting a level of the output signal according to a second predetermined gain to generate the second adjustment signal.
    Type: Grant
    Filed: February 2, 2007
    Date of Patent: September 1, 2009
    Assignee: Realtek Semiconductor Corp.
    Inventors: Wen-Chi Wang, Bing-I Chang
  • Transmission Signal Generating Method and Related Apparatus for a Display Device
    Publication number: 20090201277
    Abstract: The present invention provides a transmission signal generating method for a display device to compensate channel effect. The transmission signal generating method includes using a plurality of signal amplitudes and a first signal direction to generate a plurality of positive levels, using the plurality of signal amplitudes and a second signal direction to generate a plurality of negative levels, and using a plurality of signaling lines for transmission of the pluralities of negative and positive levels. A first positive level and a first negative level both have a minimum signal amplitude of the plurality of signal amplitudes. The amplitude difference of the first positive and negative levels is greater than an amplitude difference of any two neighboring levels of the plurality of negative levels and also the plurality of positive levels.
    Type: Application
    Filed: May 30, 2008
    Publication date: August 13, 2009
    Inventors: Wen-Chi Lin, Che-Li Lin, Shao-Chung Ho
  • METHOD FOR MAKING A COPPER INDIUM CHALCOGENIDES POWDER
    Publication number: 20090196817
    Abstract: A method for making a copper indium chalcogenides powder, includes: (a) reacting a reactant mixture that contains a Cu-containing material, an In-containing material, and a chalcogenides-containing material in a polar organic solvent at an elevated temperature so as to form a precipitate, the polar organic solvent having a molecular structure containing at least one of nitrogen atom and oxygen atom, each of which having at least one lone electron pair, the polar organic solvent further having a dipole moment greater than 2.3 debye; and (b) separating the polar organic solvent from the precipitate.
    Type: Application
    Filed: October 10, 2008
    Publication date: August 6, 2009
    Inventors: Richard FU, Wen-Chi HUANG, Bang-Yen CHOU, Shih-Jen LIN, Chun-Hui C. C. CHEN
  • MULTI-BAND ANTENNA
    Publication number: 20090184874
    Abstract: A multi-band antenna, it comprises: a grounding surface, a supporting base and a radiative metallic portion; the grounding surface has a first shorting point and a second shorting point; the radiative metallic portion is attached to a bottom surface of the supporting base, and includes: a first radiative metallic wire, a radiative metallic sheet, a second radiative metallic wire and a parasitic radiative metallic arm.
    Type: Application
    Filed: January 19, 2008
    Publication date: July 23, 2009
    Inventors: Yun-Wen CHI, Kin-Lu Wong
  • TRANSFECTION REAGENT AND METHOD FOR ENHANCING TRANSFECTION EFFICIENCY
    Publication number: 20090175905
    Abstract: A transfection reagent and a method for enhancing transfection efficiency are described. A nucleic acid is provided, and a disaccharide is added as a transfection reagent. The disaccharide is composed of two identical monosaccharides. The transfection reagent is then applied to cells to introduce the nucleic acid into the cells.
    Type: Application
    Filed: July 4, 2008
    Publication date: July 9, 2009
    Applicant: National Taiwan University of Science and Technology
    Inventors: Wen-Chi Tseng, Tsuei-Yun Fang, Chien-Hsiang Tang