Patents by Inventor Ching-Ho Hung

Ching-Ho Hung 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).

  • Patent number: 8159271
    Abstract: A scan driver includes a voltage setting circuit, a counter circuit, a logic circuit, a dynamic decoder, N level shift circuits and N output stage circuits, wherein N is a natural number. The voltage setting circuit sets N voltage signals to a first level. The counter circuit provides count data to the logic circuit, which generates M control signals according to the count data, wherein M is a natural number. The dynamic decoder includes multiple transistors, arranged in N rows, for receiving the respective N voltage signals. The transistors are further arranged in M columns and are controlled by the respective M control signals to determine levels of the N voltage signals. The N level shift circuits lift the levels of the respective N voltage signals, and the N output stage circuits output respective N gate signals based on the N voltage signals whose levels are shifted.
    Type: Grant
    Filed: November 14, 2008
    Date of Patent: April 17, 2012
    Assignee: Novtek Microelectronics Corp.
    Inventor: Ching-Ho Hung
  • Publication number: 20110260992
    Abstract: A panel control device and an operation method thereof are provided. The panel control device includes a touch controller and a display controller. The display controller drives a touch display panel module to display an image. The touch controller senses a touch event of the touch display panel module. Wherein, the sensing operation of the touch controller is enabled/disabled in accordance with the driving operation of the display controller.
    Type: Application
    Filed: January 19, 2011
    Publication date: October 27, 2011
    Applicant: NOVATEK MICROELECTRONICS CORP.
    Inventors: Ching-Ho Hung, Wing-Kai Tang, Ching-Chun Lin, Hsien-Lung Chen, Tsen-Wei Chang, Jiun-Jie Tsai
  • Publication number: 20110254596
    Abstract: A spread-spectrum circuit including an inverter, a current source, a control unit and a shaping circuit is provided. An input terminal of the inverter receives an original clock signal. The current source is coupled to a current transmission terminal of the inverter. The control unit includes a control circuit, and changes the current magnitude of the current source according to the original clock signal to control the charging/discharging speed of an output terminal of the inverter, so that the output terminal outputs a voltage signal. The shaping circuit shapes the voltage signal into a spread-spectrum clock signal.
    Type: Application
    Filed: September 28, 2010
    Publication date: October 20, 2011
    Applicant: NOVATEK MICROELECTRONICS CORP.
    Inventors: Ching-Ho HUNG, Yung-Cheng Lin, Po-Yu Tseng
  • Publication number: 20110234523
    Abstract: A touch sensing system including a touch interface, at least one sensing unit, and a switching unit is provided. The sensing unit is coupled to the touch interface. The touch sensing system is switched to a first sensing mode or a second sensing mode by the switching unit according to a control signal. When the touch sensing system is in the first sensing mode, the sensing unit senses a first sensing signal and a second sensing signal of the touch interface. On the other hand, when the touch sensing system is in the second sensing mode, the sensing unit senses the first sensing signal according to a driving signal. An electronic touch apparatus and a touch sensing method are also provided.
    Type: Application
    Filed: March 23, 2011
    Publication date: September 29, 2011
    Applicant: NOVATEK MICROELECTRONICS CORP.
    Inventors: Tsen-Wei Chang, Wing-Kai Tang, Ching-Chun Lin, Ching-Ho Hung, Hsien-Lung Chen, Jiun-Jie Tsai
  • Publication number: 20110234522
    Abstract: A touch sensing system including a touch interface and a control unit is provided. The touch interface senses at least one edge change of at least one region on the touch interface corresponding to at least one object. The control unit defines a touch gesture corresponding to the object according to the edge change so as to perform a touch operation corresponding to the touch gesture. Additionally, a touch sensing method is also provided. In the touch sensing method, whether the touch gesture is a moving gesture, a rotation gesture, a flip gesture, a zoom-in gesture, or a zoom-out gesture is determined according to any change of a touch region.
    Type: Application
    Filed: March 23, 2011
    Publication date: September 29, 2011
    Applicant: NOVATEK MICROELECTRONICS CORP.
    Inventors: Ching-Chun Lin, Wing-Kai Tang, Hao-Jan Huang, Ching-Ho Hung, Tsen-Wei Chang, Jiun-Jie Tsai
  • Publication number: 20110210930
    Abstract: A sensing and driving apparatus suitable for a sensing interface is provided. The sensing and driving apparatus includes a driving module and a sensing unit. The driving module outputs a first reference signal and a second reference signal which have different polarities with each other, and respectively transmits the first reference signal and the second reference signal to a first driving line and a second driving line of the sensing interface so as to generate a first sensing signal during a first period. The sensing unit receives the first sensing signal and detects a change of the first signal so as to generate a sensing result. A sensing and driving method, a touch sensing system and a device using the same are also provided herein.
    Type: Application
    Filed: March 1, 2011
    Publication date: September 1, 2011
    Applicant: NOVATEK MICROELECTRONICS CORP.
    Inventors: Ching-Chun Lin, Wing-Kai Tang, Ching-Ho Hung, Tsen-Wei Chang, Yi-Liang Lin, Jiun-Jie Tsai
  • Publication number: 20110199323
    Abstract: A touch sensing system includes a touch interface and a control unit. The touch interface senses at least one area change generated on the touch interface by at least one object. The control unit defines a touch gesture corresponding to the at least one object according to the at least one area change, so as to perform a touch operation according to the touch gesture. On the other hand, a touch sensing method is also provided. For users, the touch sensing method in the invention employs a pseudo three-dimensional touch sensing technology, such that applications of the touch sensing technology become more diverse.
    Type: Application
    Filed: January 31, 2011
    Publication date: August 18, 2011
    Applicant: NOVATEK MICROELECTRONICS CORP.
    Inventors: Ching-Chun Lin, Wing-Kai Tang, Hao-Jan Huang, Ching-Ho Hung, Tsen-Wei Chang, Jiun-Jie Tsai
  • Publication number: 20110193571
    Abstract: A touch sensing system which includes a touch input interface and a capacitance sensing circuit is provided. The touch input interface includes a plurality of sensing capacitors which output at least one waveform under test and at least one reference waveform. The capacitance sensing circuit includes a difference comparing unit. The difference comparing unit receives the waveform under test and the reference waveform and outputs a differential signal according to at least one positive edge difference and at least one negative edge difference between the waveform under test and the reference waveform. Furthermore, a capacitance sensing method is also provided.
    Type: Application
    Filed: October 1, 2010
    Publication date: August 11, 2011
    Applicant: NOVATEK MICROELECTRONICS CORP.
    Inventors: Ching-Chun Lin, Wing-Kai Tang, Ching-Ho Hung, Tsen-Wei Chang, Yi-Liang Lin, Jiun-Jie Tsai
  • Publication number: 20110187390
    Abstract: A touch sensing system including a touch input interface and a capacitance sensing circuit is provided. The touch input interface includes a plurality of sensing capacitors for outputting a capacitance under test and a reference capacitance. The capacitance sensing circuit includes a first sensing channel, a second sensing channel, and a difference comparing unit. During a first period of the sensing period, the first sensing channel senses the capacitance under test, and the second sensing channel senses the reference capacitance. During a second period of the sensing period, the first sensing channel senses the reference capacitance, and the second sensing channel senses the capacitance under test. The difference comparing unit outputs a difference according to the capacitance under test and the reference capacitance. Additionally, a capacitance sensing method is also provided.
    Type: Application
    Filed: January 3, 2011
    Publication date: August 4, 2011
    Applicant: NOVATEK MICROELECTRONICS CORP.
    Inventors: Ching-Chun Lin, Wing-Kai Tang, Ching-Ho Hung, Tsen-Wei Chang, Yi-Liang Lin, Jiun-Jie Tsai
  • Publication number: 20110187663
    Abstract: An object sensing apparatus including an object sensing unit, a signal selecting unit, at least one signal sensing unit, and a control unit is provided. The object sensing unit outputs a plurality of sensing signals. The signal selecting unit selects at least one of the sensing signals as a signal under test and selects at least one of the unselected sensing signals as a reference signal. The signal sensing unit outputs a difference signal according to the signal under test and the reference signal. The control unit determines an object position relative to the object sensing unit according to the difference signal. Additionally, a touch sensing apparatus and a method thereof are also provided.
    Type: Application
    Filed: February 1, 2011
    Publication date: August 4, 2011
    Applicant: NOVATEK MICROELECTRONICS CORP.
    Inventors: Ching-Chun Lin, Wing-Kai Tang, Ching-Ho Hung, Tsen-Wei Chang, Yi-Liang Lin, Jiun-Jie Tsai
  • Publication number: 20110163994
    Abstract: A touch sensing system includes a touch input interface and at least one capacitance sensing apparatus. The capacitance sensing apparatus includes a plurality of switch units and a differential sensing circuit. Each of the switch units is coupled to a corresponding sensing capacitor. A sensing input end of the differential sensing circuit receives a capacitance under test provided by at least one of the sensing capacitors. A reference input end of the differential sensing circuit receives a reference capacitance provided by at least one of the sensing capacitors. The differential sensing circuit compares the capacitance under test and the reference capacitance to output a first difference between the capacitance under test and the reference capacitance through an output end of the differential sensing circuit. A capacitance sensing method is also provided.
    Type: Application
    Filed: December 29, 2010
    Publication date: July 7, 2011
    Applicant: NOVATEK MICROELECTRONICS CORP.
    Inventors: Wing-Kai Tang, Ching-Chun Lin, Ching-Ho Hung, Tsen-Wei Chang, Yi-Liang Lin, Jiun-Jie Tsai
  • Publication number: 20110102416
    Abstract: A gate driving circuit for an LCD device includes a shift register module for generating a plurality of scan signals corresponding to a plurality of channels according to a start signal and a clock signal, a plurality of logic circuits each corresponding to a channel of the plurality of channels, for outputting a driving signal to the channel according to a scan signal of the plurality of scan signals and a shutdown indication signal, and a plurality of shaping and delay units each coupled between two neighboring channels for outputting the shutdown indication signal to another channel after shaping and delaying the shutdown indication signal of a previous stage.
    Type: Application
    Filed: July 1, 2010
    Publication date: May 5, 2011
    Inventors: Ching-Ho Hung, Chao-Chih Hsiao, Yen-Po Chen, Bor-Chun Wu
  • Publication number: 20090276668
    Abstract: A scan driver includes a voltage setting circuit, a counter circuit, a logic circuit, a dynamic decoder, N level shift circuits and N output stage circuits, wherein N is a natural number. The voltage setting circuit sets N voltage signals to a first level. The counter circuit provides count data to the logic circuit, which generates M control signals according to the count data, wherein M is a natural number. The dynamic decoder includes multiple transistors, arranged in N rows, for receiving the respective N voltage signals. The transistors are further arranged in M columns and are controlled by the respective M control signals to determine levels of the N voltage signals. The N level shift circuits lift the levels of the respective N voltage signals, and the N output stage circuits output respective N gate signals based on the N voltage signals whose levels are shifted.
    Type: Application
    Filed: November 14, 2008
    Publication date: November 5, 2009
    Applicant: NOVATEK MICROELECTRONICS CORP.
    Inventor: Ching-Ho HUNG
  • Patent number: 7574639
    Abstract: A method and an apparatus for entering special mode in integrated circuit (IC) or logic circuit are provided. The IC or logic circuit receives a plurality of data bits and a reset signal, wherein the reset signal is used to reset the IC or the logic circuit. The apparatus includes a plurality of registers and a logic circuit. The registers receive the data bits and the reset signal and output the data bits when the reset signal is transferred from a second state to a first state. The logic circuit includes a logic output terminal and a plurality of logic input terminals, wherein the logic input terminals are coupled to the registers respectively and receiving the data bits output from the registers. When the logic input terminals receive a predetermined value, the logic value output from the logic output terminal is transferred to enter the special mode.
    Type: Grant
    Filed: September 11, 2006
    Date of Patent: August 11, 2009
    Assignee: Novatek Microelectronics Corp.
    Inventors: Ching-Ho Hung, Shih-Pin Hsu
  • Publication number: 20090184914
    Abstract: A driving device of a gate driver in a flat panel display for reducing production cost includes a plurality of addressing units, each addressing unit for generating a plurality of addressing signals, and an output control circuit for performing logic operations in order on a plurality of addressing signals generated by one of the plurality of addressing units and a plurality of addressing signals generated by another of the plurality of addressing units, for generating a plurality of channel output signals.
    Type: Application
    Filed: March 3, 2008
    Publication date: July 23, 2009
    Inventors: Kai-Shu Han, Ching-Ho Hung
  • Publication number: 20070283199
    Abstract: A method and an apparatus for entering special mode in integrated circuit (IC) or logic circuit are provided. The IC or logic circuit receives a plurality of data bits and a reset signal, wherein the reset signal is used to reset the IC or the logic circuit. The apparatus includes a plurality of registers and a logic circuit. The registers receive the data bits and the reset signal and output the data bits when the reset signal is transferred from a second state to a first state. The logic circuit includes a logic output terminal and a plurality of logic input terminals, wherein the logic input terminals are coupled to the registers respectively and receiving the data bits output from the registers. When the logic input terminals receive a predetermined value, the logic value output from the logic output terminal is transferred to enter the special mode.
    Type: Application
    Filed: September 11, 2006
    Publication date: December 6, 2007
    Applicant: NOVATEK MICROELECTRONICS CORP.
    Inventors: Ching-Ho Hung, Shih-Pin Hsu