Patents by Inventor Chien Yang

Chien Yang 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).

  • LIGHT EMITTING DEVICE POWER SUPPLY CIRCUIT AND DAMPING CIRCUIT THEREIN AND DRIVING METHOD THEREOF
    Publication number: 20140300288
    Abstract: The present invention discloses a light emitting device power supply circuit and a damping circuit therein and a driving method thereof. The light emitting device power supply circuit includes: a tri-electrode AC switch (TRIAC) dimming circuit, a rectifier circuit, a light emitting device driver circuit, and a damping circuit. The damping circuit includes: an impedance circuit, which is electrically connected between the rectifier circuit and the light emitting device driver circuit; a silicon control rectifier (SCR) circuit, which is connected to the impedance circuit in parallel; and a delay circuit, which is coupled to the SCR circuit, for turning ON the SCR circuit after a delay time period from when the TRIAC diming circuit begins to start-up, wherein the delay circuit does not directly receive a full scale of the input voltage.
    Type: Application
    Filed: March 24, 2014
    Publication date: October 9, 2014
    Applicant: RICHTEK TECHNOLOGY CORPORATION
    Inventors: Chien-Yang Chen, Chi-Hsiu Lin, Yi-Wei Lee
  • LED driver and driving method
    Patent number: 8847500
    Abstract: An LED driver includes a power converter to convert an input voltage to a regulated voltage, a current source to be connected with an LED string in series between the power converter and a bias node, and a switching circuit to apply a bias voltage to the bias node to set the total voltage drop of the LED string and the current source. By controlling the total voltage drop of the LED string and the current source, the LED driver will automatically select a boost mode or a buck mode for operation, thereby improving the efficiency thereof.
    Type: Grant
    Filed: November 29, 2010
    Date of Patent: September 30, 2014
    Assignee: Richtek Technology Corp.
    Inventors: Shui-Mu Lin, Chueh-Kuei Jan, Shei-Chie Yang, Huan-Chien Yang
  • Controller driver for driving display panel
    Patent number: 8842105
    Abstract: A controller driver for driving a display panel is provided. The controller driver comprises a timing control circuit, a data memory unit, a data selection unit and a data line driver circuit. The data memory unit stores image data. The data selection unit coupled to the data memory unit outputs the image data provided from the data memory unit as a display data, or generates the display data in accordance with a command or test patterns provided from an external processor. The data line driver circuit is coupled to the timing control circuit and the data selection unit. The data line driver circuit receives the display data from the data selection unit, and outputs corresponding grayscale voltages according to the control signal outputted from the timing control circuit.
    Type: Grant
    Filed: September 7, 2011
    Date of Patent: September 23, 2014
    Assignee: Novatek Microelectronics Corp.
    Inventor: Hsing-Chien Yang
  • CURRENT CONTROL CIRCUIT AND METHOD
    Publication number: 20140167725
    Abstract: The invention provides a current control circuit and a current control method. The current control circuit controls a current supplied to a current-controlled device according to a conduction control signal. The current control circuit includes: a conduction control switch coupled to the current-controlled device, for determining whether to conduct the current according to the conduction control signal; and a plurality of current control switches connected to one another in series and coupled to the conduction control switch, for controlling a magnitude of the current.
    Type: Application
    Filed: October 1, 2013
    Publication date: June 19, 2014
    Applicant: RICHTEK TECHNOLOGY CORPORATION
    Inventors: Huan-Chien Yang, Shui-Mu Lin, Shei-Chie Yang, Ti-Ti Liu, Yung-Chun Chuang
  • Display capable of improving frame quality and method thereof
    Patent number: 8730222
    Abstract: A display capable of improving frame quality includes a display panel, a timing controller, and a source driver. The timing controller is used for generating a scan start signal, and generating at least one control signal in a blanking time of the display panel according to polarity of a last datum before the blanking time and polarity of a first datum after the blanking time. The source driver is used for generating at least one datum synchronized with the at least one control signal according to the polarity of the last datum before the blanking time, a voltage of the first datum after the blanking time and the at least one control signal. The source driver does not change a last datum of the at least one datum after the at least one control signal in the blanking time.
    Type: Grant
    Filed: January 3, 2012
    Date of Patent: May 20, 2014
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventors: Chih-Wei Chang, Shu-Wen Chang, Chien-Yang Chen
  • USB connector
    Patent number: 8721370
    Abstract: A USB connector comprising an insulating base, a plurality of conducting terminals, a circuit board and a housing is disclosed. The insulating base has a plurality of slots at an end of the insulating base and a plurality of abutting grooves on a surface of the insulating base, with each abutting groove communicating with a respective one of the slots. Each conducting terminal is inserted in a respective one of the slots and has an abutting portion arranged in one of the abutting grooves communicating with the respective slot. The circuit board abuts against the surface of the insulating base whereon forms the abutting grooves, with the circuit board having a plurality of electrical contacts electrically connecting with the abutting portions of the plurality of conducting terminals. The housing is hollow to receive the insulating base and circuit board.
    Type: Grant
    Filed: September 6, 2012
    Date of Patent: May 13, 2014
    Assignee: Won-Hsin Industrial Co., Ltd.
    Inventors: Su-Li Liu, Li-Chien Yang
  • Backlight module driving system and driving method thereof
    Patent number: 8698731
    Abstract: A backlight module driving system and a driving method thereof are applied to a Liquid Crystal Display (LCD). In the LCD, a timing controller obtains a three-dimensional (3D) image signal provided by a graphics processor, generates a Liquid Crystal (LC) driving control signal, and generates a corresponding light adjusting signal according to a data writing time and a Vertical Blanking Interval (VBI) time of the LC driving control signal. A backlight driver obtains and analyzes the light adjusting signal, so as to disable a backlight module during the data writing time, and enable the backlight module during the VBI time.
    Type: Grant
    Filed: May 6, 2011
    Date of Patent: April 15, 2014
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventors: Shin-Chang Lin, Bi-Hsien Chen, Chun-Chieh Chiu, Chien-Yang Chen, Tien Yung Huang
  • LED DEVICE, LED DRIVING CIRCUIT AND METHOD
    Publication number: 20140042917
    Abstract: A light-emitting diode (LED) driving circuit includes an LED control circuit and a power stage circuit. The LED control circuit shifts an input pulse width modulation (PWM) signal toward a higher frequency direction in a frequency domain to generate an output PWM signal having a duty cycle substantially the same as a duty cycle of the input PWM signal. The power stage circuit outputs an LED driving current according to the output PWM signal.
    Type: Application
    Filed: October 21, 2013
    Publication date: February 13, 2014
    Applicant: NOVATEK MICROELECTRONICS CORP.
    Inventors: Hsing-Chien YANG, Wen-Hsin Cheng, Ying-Hao Hsu, Lan-Ting Hsu, Tsung-Hau Chang
  • AVOID AUDIO NOISE OF A LED DRIVER DURING PWM DIMMING
    Publication number: 20130342124
    Abstract: A LED driver using a PWM signal for dimming control includes a power converter and a current regulator. The power converter provides an output voltage and a load current for a plurality of LEDs. The current regulator provides a load current dependent signal for the power converter to speed up load transient response caused by variation of the load current, to reduce the ripple of the output voltage, and thereby to avoid audio noise during PWM dimming.
    Type: Application
    Filed: June 19, 2013
    Publication date: December 26, 2013
    Inventors: Tsung-Wei HUANG, Shui-Mu LIN, Huan-Chien YANG, Nang-Ching YEUNG, Ti-Ti LIU
  • SYSTEMS AND METHODS FOR SINGLE-MOLECULE DETECTION USING NANOTUBES
    Publication number: 20130285680
    Abstract: A method for single-molecule detection is provided and uses a carbon nanotube having a probe entity attached thereto to define a first state of the carbon nanotube. The carbon nanotube is introduced to a target entity to define a second state of the carbon nanotube. The electrical conductance of the carbon nanotube in the first and second states is compared to detect the presence of a biomolecular entity. A system for single-molecule detection including a carbon nanotube is also provided.
    Type: Application
    Filed: March 13, 2013
    Publication date: October 31, 2013
    Inventors: Sebastian Sorgenfrei, Kenneth Shepard, Chien-Yang Chiu, Colin Nuckolls, Steven Warren
  • Semiconductor device and method for fabricating the same
    Patent number: 8569127
    Abstract: A method for fabricating a semiconductor device is described. A substrate having thereon a polysilicon resistor is provided. A dielectric layer is formed over the substrate covering the polysilicon resistor. The dielectric layer is etched to form a contact opening over the polysilicon resistor, with overetching into the polysilicon resistor. A metal silicide layer is formed on the polysilicon resistor in the contact opening. A metal material is filled in the contact opening. A portion of the dielectric layer, the metal material, and a portion of the polysilicon resistor are removed to expose the metal silicide layer. A metal contact is formed over the metal silicide layer.
    Type: Grant
    Filed: March 13, 2012
    Date of Patent: October 29, 2013
    Assignee: United Microelectronics Corp.
    Inventors: Chien-Yang Chen, Chen-Hua Tsai, Shih-Fang Hong, Po-Chao Tsao, Ming-Te Wei
  • SEMICONDUCTOR DEVICE AND METHOD FOR FABRICATING THE SAME
    Publication number: 20130241001
    Abstract: A method for fabricating a semiconductor device is described. A substrate having thereon a polysilicon resistor is provided. A dielectric layer is formed over the substrate covering the polysilicon resistor. The dielectric layer is etched to form a contact opening over the polysilicon resistor, with overetching into the polysilicon resistor. A metal silicide layer is formed on the polysilicon resistor in the contact opening. A metal material is filled in the contact opening. A portion of the dielectric layer, the metal material, and a portion of the polysilicon resistor are removed to expose the metal silicide layer. A metal contact is formed over the metal silicide layer.
    Type: Application
    Filed: March 13, 2012
    Publication date: September 19, 2013
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventors: Chien-Yang Chen, Chen-Hua Tsai, Shih-Fang Hong, Po-Chao Tsao, Ming-Te Wei
  • THIN FILM RESISTOR STRUCTURE
    Publication number: 20130234292
    Abstract: A thin film resistor structure includes a substrate, a flat bottom ILD (inter layer dielectric) disposed on the substrate, a plurality of first contacts disposed in the bottom ILD, and each top surface of the first contacts is on the same level as a top surface of the bottom ILD; a flat top ILD disposed on the bottom ILD, a plurality of second contacts disposed in the top ILD, and each top surface of the second contacts is on the same level as a top surface of the top ILD, and a thin film resistor disposed between the bottom ILD and the top ILD.
    Type: Application
    Filed: March 7, 2012
    Publication date: September 12, 2013
    Inventors: Ming-Te Wei, Po-Chao Tsao, Chen-Hua Tsai, Chien-Yang Chen, Chia-Jui Liang, Ming-Tsung Chen
  • Navigation system and route planning method using the same
    Patent number: 8467965
    Abstract: A route planning method for a navigation system of a moving object. The method comprises planning and executing a first navigation route; labeling lane entrances in a road corresponding to a substitute navigation route according to a location of the moving object when traffic information is detected, and planning and executing a second navigation route according to the lane entrance.
    Type: Grant
    Filed: December 7, 2010
    Date of Patent: June 18, 2013
    Assignee: Mitac International Corp.
    Inventor: Chien-Yang Chang
  • Method and system for automatically creating POI by identifying geographic information on a screen of a portable navigation device
    Patent number: 8457878
    Abstract: A method for automatically creating points of interest by identifying geographic information on a screen of a portable navigation device. A first geographic information is retrieved from an information page shown in the screen of the portable navigation device and recognized by comparing with the first geographic information with a geographic information of landmarks stored in a map database of the portable navigation device. It is determined whether the first geographic information is in the map database. If the geographic information is in the map database, a first GPS coordinate corresponding to the first geographic information is obtained and stored as a first POI.
    Type: Grant
    Filed: March 6, 2012
    Date of Patent: June 4, 2013
    Assignee: MiTAC International Corp.
    Inventor: Chien-Yang Chang
  • DISPLAY CAPABLE OF IMPROVING FRAME QUALITY AND METHOD THEREOF
    Publication number: 20130113769
    Abstract: A display capable of improving frame quality includes a display panel, a timing controller, and a source driver. The timing controller is used for generating a scan start signal, and generating at least one control signal in a blanking time of the display panel according to polarity of a last datum before the blanking time and polarity of a first datum after the blanking time. The source driver is used for generating at least one datum synchronized with the at least one control signal according to the polarity of the last datum before the blanking time, a voltage of the first datum after the blanking time and the at least one control signal. The source driver does not change a last datum of the at least one datum after the at least one control signal in the blanking time.
    Type: Application
    Filed: January 3, 2012
    Publication date: May 9, 2013
    Inventors: Chih-Wei Chang, Shu-Wen Chang, Chien-Yang Chen
  • LED controller with de-flicker function and LED de-flicker circuit and method thereof
    Patent number: 8436544
    Abstract: The present invention discloses an LED controller with de-flicker function and an LED de-flicker circuit and method thereof. The LED controller includes: a duty ratio calculation circuit for receiving a pulse width modulation (PWM) signal and generating a duty input signal, indicating a digital duty ratio of the PWM signal; an LED de-flicker circuit for receiving the duty input signal and generating a duty output signal wherein a noise in the duty input signal is filtered; and a dimming circuit for receiving the duty output signal and generating a dimming signal to control an LED circuit; wherein the duty output signal remains unchanged when the variation of the duty input signal is not larger than a hysteresis threshold, and the duty output signal follows the duty input signal when the variation of the duty input signal is larger than the hysteresis threshold.
    Type: Grant
    Filed: November 10, 2010
    Date of Patent: May 7, 2013
    Assignee: Richtek Technology Corporation
    Inventors: Shei-Chie Yang, Shui-Mu Lin, Chuan-Yo Hsiao, Huan-Chien Yang
  • Circuit for computing sums of absolute difference
    Patent number: 8416856
    Abstract: A circuit for computing sums of absolute difference (SAD) is provided. The circuit has an absolute difference circuit, a first adder, a first register and a first selective circuit. The absolute difference circuit receives a first data PMi,j and a second data PSi,j and output a absolute difference data ADi,j, wherein ADi,j=|PMi,j?PSi,j|. The first adder receives and adds the absolute difference data and a first accumulative data, and outputs a first sum. The register receives and locks the first sum according to a first preset timing sequence, and outputs a first sum of absolute difference data. The first selective circuit receives and selects the first sum of absolute difference data or 0, and outputs the selected data as the first accumulative data.
    Type: Grant
    Filed: June 21, 2005
    Date of Patent: April 9, 2013
    Assignee: Novatek Microelectronics Corp.
    Inventors: Hsing-Chien Yang, Jin-Ming Chen, Lucian-Yuan
  • Germs resisting and self cleaning infiltration thin film and manufacturing method thereof
    Patent number: 8415408
    Abstract: The invention provides a germs resisting and self-cleaning infiltration thin film and manufacturing method thereof. At first, a Polyethyleneimine (PEI) and a Polyvinyl Alcohol (PVA) are used to make a polymer thin film. Then, a germ resistant and an inorganic metal oxide are added into the polymer thin film to form the selective infiltration thin film capable of resisting germs and self-cleaning.
    Type: Grant
    Filed: March 25, 2010
    Date of Patent: April 9, 2013
    Assignee: Chung-Shan Institute of Science and Technology, Armaments Bureau of National Defense
    Inventors: Cheng-Chien Yang, Kuo-Hui Wu, Wang-Tsai Gu, Yu-Zen Hsieh, Mang-Zhi Wu
  • Circuit and method for controlling light emitting device, and integrated circuit therefor
    Patent number: 8405320
    Abstract: The present invention provides a transistor switch on a light emitting device channel, the transistor switch receiving a control voltage VG. A current source circuit controls the current on the light emitting device channel, the current source circuit requiring a minimum voltage VR for normal operation. The present invention further provides a dynamic headroom controller circuit which compares a voltage VS at a current outflow end of the transistor switch with the voltage VR to determine the relationship between the voltage VS and the voltage VR when the control voltage VG is higher than a reference voltage VH, and adjusts the voltage difference between the voltage VS and the voltage VR accordingly.
    Type: Grant
    Filed: March 27, 2011
    Date of Patent: March 26, 2013
    Assignee: Richtek Technology Corporation
    Inventors: Tsung-Wei Huang, Shui-Mu Lin, Nang-Ching Yeung, Ti-Ti Liu, Huan-Chien Yang