Patents by Inventor Yung-Lieh Chien

Yung-Lieh Chien 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).

  • Publication number: 20070259224
    Abstract: The invention discloses a shut-down procedure for the fuel cell, which includes a portion of electricity generation, a control unit, an inner load end, an outer load end, a fan, a pump and means of judging the temperature difference between the inside and the outside of the fuel cell, and works with the fan and the pump working continuously under the control of the control unit, the shut-down procedure starting under the judgment of the control unit and comprising steps of: starting under the selection of the control unit, together with stopping the work of the pump under the selection of the control unit; judging whether the temperature difference between the inside and the outside of the fuel cell is lower than a specified value or not, by means of the means of judging the temperature difference between the inside and the outside of the fuel cell; and stopping the work of the fan under the selection of the control unit if the temperature difference between the inside and the outside of the fuel cell is lowe
    Type: Application
    Filed: April 27, 2007
    Publication date: November 8, 2007
    Inventors: CHUN-CHIN TUNG, Yung-Lieh Chien
  • Patent number: 7274353
    Abstract: A capacitive touchpad integrated with key and handwriting functions is provided for operation in key, handwriting and mouse modes. Several regions are defined on the panel of the touchpad and have several patterns printed thereon for the operation modes thereby. In the key mode, the key patterns among the printed patterns simulate a keyboard. In the handwriting mode, the handwriting region among the defined regions serves to handwriting input. In the mouse mode, the defined regions provide a cursor moving region and a horizontal and vertical scroll bars for input operations.
    Type: Grant
    Filed: September 24, 2003
    Date of Patent: September 25, 2007
    Assignee: Elan Microelectronics Corporation
    Inventors: Yen-Chang Chiu, Ting-Hao Yeh, Yung-Lieh Chien, Shih-Chi Lin
  • Publication number: 20070218324
    Abstract: A fuel cell voltage stabilization apparatus is disclosed. The apparatus utilizes electronic circuits for voltage modulation to stabilize and fix the voltage load for a fuel cell. The apparatus comprises a voltage boost circuit and a voltage reducing circuit, which are realized by electronic circuits to stabilize an output voltage of the fuel cell and fix the output voltage to the loading.
    Type: Application
    Filed: February 1, 2007
    Publication date: September 20, 2007
    Inventors: CHUN-CHIN TUNG, YUNG-LIEH CHIEN
  • Publication number: 20070171203
    Abstract: In a method for functioning a mouse Zx scroll with a standard mouse driver, a pair of middle-button signals of a mouse are generated by a standard mouse driver of Microsoft to sandwich a horizontal movement amount signal when scrolling a horizontal scroll bar of a window by a Zx mechanism of the mouse. Since the horizontal scroll bar is operated only by the standard mouse driver of Microsoft, there is no need of additional or specific mouse driver for the Zx function of a mouse.
    Type: Application
    Filed: November 8, 2005
    Publication date: July 26, 2007
    Inventors: Yen-Chang Chiu, Yung-Lieh Chien, Tso-Chieh Yang, Cheng-Hao Tang
  • Publication number: 20070165005
    Abstract: A multiple objects detection method for a capacitive touchpad, through at least one preset time, whether it is noise and interference or an operation of object on touchpad is thus distinguished, actions such as object touches the touchpad, leaves the touchpad are then judged correctly, and different kinds of gesture operations are precisely detected.
    Type: Application
    Filed: January 19, 2006
    Publication date: July 19, 2007
    Inventors: Jia-Yih Lii, Yung-Lieh Chien
  • Publication number: 20070091077
    Abstract: In a gesture detection method for a capacitive touchpad, various gesture operations are determined by detecting the touching on the touchpad, leaving from the touchpad, and moving on the touchpad.
    Type: Application
    Filed: October 23, 2006
    Publication date: April 26, 2007
    Inventors: Jia-Yih Lii, Yung-Lieh Chien
  • Publication number: 20070030935
    Abstract: A method for a synchronization between two mainframe apparatuses is disclosed, which uses a synchronous module with fast response time, reduced deviation, less electric current consumed and low cost.
    Type: Application
    Filed: February 28, 2006
    Publication date: February 8, 2007
    Inventor: Yung-Lieh Chien
  • Publication number: 20070013670
    Abstract: In a gesture detection method for a touchpad, various gestures such as tap, drag and double tap are determined by operating an object to touch on the touchpad, leave from the touchpad, and move on the touchpad.
    Type: Application
    Filed: January 19, 2006
    Publication date: January 18, 2007
    Inventors: Yung-Lieh Chien, Jia-Yih Lii, Tso-Chieh Yang
  • Publication number: 20070013669
    Abstract: In a gesture detection method for a touchpad, various gestures such as tap, drag and double tap are determined by operating an object to touch on the touchpad, leave from the touchpad, and move on the touchpad.
    Type: Application
    Filed: January 19, 2006
    Publication date: January 18, 2007
    Inventors: Yung-Lieh Chien, Jia-Yih Lii
  • Publication number: 20070008295
    Abstract: In a gesture detection method for a touchpad, according to the present invention, various gestures such as tap, drag and double tap are determined by operating an object to touch on the touchpad, leave from the touchpad, and move on the touchpad.
    Type: Application
    Filed: December 29, 2005
    Publication date: January 11, 2007
    Inventors: Yung-Lieh Chien, Jia-Yih Lii
  • Publication number: 20060279550
    Abstract: An integrally formed touchpad module comprises a touchpad integrated with peripheral functional buttons and directly attached underneath the equipment case. Therefore, no holes need to be opened on the case and no additional real buttons are required in the touchpad module mechanism. It is thus achieved the goals of integrally formed mechanism, cost reduction, waterproof, anti-dust and good-looking.
    Type: Application
    Filed: November 16, 2005
    Publication date: December 14, 2006
    Inventors: Jia-Yih Lii, Yung-Lieh Chien
  • Publication number: 20060232559
    Abstract: A capacitive touchpad with physical key function comprises a soft flexible first conductive layer; a second conductive layer; and a soft flexible insulator layer disposed between the first and the second conductive layers. The insulator layer has at least a through hole for the first conductive layer to connect to the second conductive layer while the touchpad is pressed and cause the voltages on the first or the second conductive layers to change and thus to trigger a predetermined key function.
    Type: Application
    Filed: December 13, 2005
    Publication date: October 19, 2006
    Inventors: Yung-Lieh Chien, Jia-Yih Lii
  • Publication number: 20060202970
    Abstract: In a touchpad with single-layered PCB structure, a PCB has a bottom layer with a sensor area and a component area thereon, the sensor area includes two directional traces directly connected to the component area, respectively, and carbon film wires in the sensor area for interconnecting one or more of the directional traces.
    Type: Application
    Filed: November 16, 2005
    Publication date: September 14, 2006
    Inventors: Jia-Yih Lii, Yen-Chang Chiu, Yung-Lieh Chien
  • Publication number: 20060033722
    Abstract: For power saving, a structure of a capacitive touchpad comprises a soft board having a bottom surface with a first conductor thereon, a printed circuit board having a top surface with a second conductor thereon, a flexible insulator between the soft board and printed circuit board, and a control circuit having an I/O port connected to the second conductor, such that a pressing on the soft board may move the first conductor down to contact the second conductor to thereby generate a voltage change signal present on the I/O port, causing the control circuit to wake up the capacitive touchpad.
    Type: Application
    Filed: July 28, 2005
    Publication date: February 16, 2006
    Inventors: Yen-Chang Chiu, Yung-Lieh Chien
  • Publication number: 20060001652
    Abstract: In a method for scroll bar control on a touchpad, the fingers touching on the touchpad are detected to start up and terminate a scroll bar control function. In the scroll bar control function, the movement of the finger or fingers touching on the touchpad is detected for scrolling on a window, and the vertical distance and the horizontal distance of the movement are evaluated for determining the scrolling amount of a vertical scroll bar or a horizontal scroll bar of the window.
    Type: Application
    Filed: July 1, 2005
    Publication date: January 5, 2006
    Inventors: Yen-Chang Chiu, Yung-Lieh Chien, Zhi-Long Wu
  • Publication number: 20050259086
    Abstract: A capacitive touchpad provides operational modes including key input, graphical input, handwriting input, and mouse control. The touchpad comprises a panel having several programmed regions thereon, several patterns in the regions are programmed for the operational modes, and a pattern on the panel is programmed as a mode switch to switch the touchpad between the operational modes. In the graphical input mode, the regions include a graphical input region for graphical input. In the key input mode, the patterns include ones for keys to simulate a keyboard. In the handwriting input mode, the regions include a handwriting region for handwriting input. In the mouse control mode, the regions include a cursor control region as well as horizontal and vertical scroll regions.
    Type: Application
    Filed: May 17, 2005
    Publication date: November 24, 2005
    Inventors: Yen-Chang Chiu, Yung-Lieh Chien
  • Publication number: 20050179672
    Abstract: In a capacitive touchpad, a plurality of sensing zones are defined, and a controller is connected with a plurality of scan lines for sensing a movement of an object slipping on the plurality of sensing zones, wherein at least one of the plurality of scan lines is connected to at least two of the plurality of sensing zones. The distance, speed and direction of the movement are determined by detecting the object on the touchpad at two positions upon two scans, and thereby the control of a scroll bar is accomplished. The capacitive touchpad is applied for a Z-axis arrangement on a mouse and a scroll arrangement on a keyboard.
    Type: Application
    Filed: February 8, 2005
    Publication date: August 18, 2005
    Inventors: Yen-Chang Chiu, Yung-Lieh Chien, Cheng-Hao Tang
  • Publication number: 20050162404
    Abstract: An apparatus comprises a case, one or more capacitive touchpads mounted on the case for serving as the input interface of the apparatus, and a microprocessor within the case connected to the capacitive touchpads. Each of the capacitive pads generates a signal representative of capacitance change in response to a touch thereon, and the microprocessor determines the displacement, moving speed, relative position, or continuing and discontinuing time of the touch from the signal representative of capacitance change, to accordingly generate corresponding output as a button, Z-axis or scrolling signal.
    Type: Application
    Filed: January 4, 2005
    Publication date: July 28, 2005
    Inventors: Yen-Chang Chiu, Yung-Lieh Chien, Cheng-Hao Tang
  • Publication number: 20050162394
    Abstract: A mode switch apparatus for an optical mouse comprises a capacitive touchpad mounted on a housing of the optical mouse, and a microprocessor connected to the capacitive touchpad. When a user's hand touches or leaves the capacitive touchpad, a signal representative of capacitance change is generated in response thereto, and the microprocessor switches the optical mouse from a first mode to a second mode, or from the second mode to the first mode, in response to the signal representative of capacitance change.
    Type: Application
    Filed: January 7, 2005
    Publication date: July 28, 2005
    Inventors: Yen-Chang Chiu, Yung-Lieh Chien, Cheng-Hao Tang
  • Publication number: 20050156906
    Abstract: A capacitive touchpad comprises a membrane and a printed circuit board combined together. The membrane comprises an X trace and a Y trace with an insulator layer inserted therebetween, and the printed circuit board has connection pads on a top side of a substrate that are electrically connected to the X and Y traces. The printed circuit board further comprises vias connected between the connection pads and a conductor layer on the bottom side of the substrate. To form the capacitive touchpad, the membrane and printed circuit board are individually produced in advance, and then combined together. Alternatively, the membrane is printed on the printed circuit board.
    Type: Application
    Filed: January 4, 2005
    Publication date: July 21, 2005
    Inventors: Yen-Chang Chiu, Yung-Lieh Chien