Patents by Inventor Chun Chen Liu

Chun Chen Liu 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: 20140104232
    Abstract: A self-capacitive touch control apparatus includes a plurality of electrodes, a plurality of sensors, and a number determining module. The sensors detect capacitance changes in the electrodes to generate a plurality of sensing results. The number determining module calculates a total sensing amount according to the sensing results, and determines the number of touch points according to the total sensing amount.
    Type: Application
    Filed: October 16, 2013
    Publication date: April 17, 2014
    Applicant: MStar Semiconductor, Inc.
    Inventors: Chun-Chen Liu, Meng-Che Tsai
  • Publication number: 20140049121
    Abstract: A self-capacitive touch panel including a border electrode and a central electrode is provided. The border electrode has a first centroid. The central electrode has a second centroid A first average distance from the first centroid to all possible touch points in the border electrode is smaller than a second average distance from the second centroid to all possible touch points in the central electrode.
    Type: Application
    Filed: August 16, 2013
    Publication date: February 20, 2014
    Applicant: MStar Semiconductor, Inc.
    Inventors: Chun-Chen Liu, Meng-Che Tsai
  • Publication number: 20140028334
    Abstract: A self-capacitive touch panel including a border region and a central region is provided. The border region has a first area and corresponds to a P number of first sensors. The central region has a second area and corresponds to a Q number of second sensors. A ratio of P to the first area is greater than a ratio of Q to the second area.
    Type: Application
    Filed: July 24, 2013
    Publication date: January 30, 2014
    Applicant: MStar Semiconductor, Inc.
    Inventors: Chun-Chen Liu, Meng-Che Tsai
  • Publication number: 20130328826
    Abstract: A touch panel including multiple electrodes is provided. The electrodes form a sensing area and are disposed on a same plane. The sensing area has a first border and a second border that are substantially perpendicular to each other. The electrodes include one parallelogram electrode. The parallelogram electrode has two first sides parallel to the first border and two second sides parallel to neither the first border nor the second border.
    Type: Application
    Filed: January 23, 2013
    Publication date: December 12, 2013
    Applicant: MSTAR SEMICONDUCTOR, INC.
    Inventors: Chun-Chen Liu, Meng-Che Tsai, Te-Wei Hsu
  • Patent number: 8536968
    Abstract: An improved magnetic component structure, wherein the structure comprises a base and two iron cores, in which the base includes a centrally through winding axle tube and the openings at both the left and right ends of the winding axle tube individually extend out a baffle. Additionally, the two iron cores are caps, in which a core column extends out from the center of the iron core toward the opening of the winding axle tube, and the core column can be inserted to the centrally through part of the winding axle tube. Therefore, the two iron cores can be clip installed between the two sets of pin parts of the base and left and right assembled to the base such that the base combined with the two iron cores can be installed upright on one side having the notch of a drive circuit board in an LED light tube.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: September 17, 2013
    Assignee: Verticil Electronics Corporation
    Inventors: Teng-Kang Chang, Chun-Chen Liu
  • Publication number: 20130229250
    Abstract: An improved magnetic component structure, wherein the structure comprises a base and two iron cores, in which the base includes a centrally through winding axle tube and the openings at both the left and right ends of the winding axle tube individually extend out a baffle. Additionally, the two iron cores are caps, in which a core column extends out from the center of the iron core toward the opening of the winding axle tube, and the core column can be inserted to the centrally through part of the winding axle tube. Therefore, the two iron cores can be clip installed between the two sets of pin parts of the base and left and right assembled to the base such that the base combined with the two iron cores can be installed upright on one side having the notch of a drive circuit board in an LED light tube.
    Type: Application
    Filed: August 31, 2012
    Publication date: September 5, 2013
    Inventors: Teng-Kang CHANG, Chun-Chen Liu
  • Publication number: 20130223053
    Abstract: An improved drive circuit board connection structure for light emitting diode (LED) lamp tube, wherein the LED lamp tube comprises a lamp tube body, at least an LED lamp strap installed inside the lamp tube body, and at least a drive circuit board installed on either side of the lamp tube body and electrically connected to the LED lamp strap. A connection plug component is respectively installed on the drive circuit board and the LED lamp strap, with each of the two different connection plug component individually having a male plug connection structure or female plug connection structure. Therefore, when such two different connection plug components are connected, it is possible to electrically connect the drive circuit board to the LED lamp strap and drive the LED lamp strap to illuminate.
    Type: Application
    Filed: August 29, 2012
    Publication date: August 29, 2013
    Inventors: Chun-Chen LIU, Hsiao-Lan CHIN
  • Publication number: 20130215609
    Abstract: An improved lamp tube connector structure for light emitting diode (LED) lamp tube, in which the LED lamp tube comprises a lampshade, two lamp tube connectors installed on the left and right ends of the lampshade, at least an LED lamp strap installed inside the lampshade, and at least a drive circuit board installed inside the lamp tube connector and electrically connected to either side of the LED lamp strap. Herein the lamp tube connector is an end cap, with two electrode terminals extending outward from the end cap. Also, at least two connection lines extend from the drive circuit board, and the drive circuit board is inserted to the interior of the electrode terminal so as to form an electrically conductive contact with the electrode terminal for transferring electric power.
    Type: Application
    Filed: August 29, 2012
    Publication date: August 22, 2013
    Inventors: Chun-Chen LIU, Hsiao-Lan Chin
  • Publication number: 20130155669
    Abstract: A separate drive circuit structure for light emitting diode (LED) lamp tube, wherein the LED lamp tube comprises a lampshade and at least an LED lamp strap installed inside the lampshade, and the left and right sides of the LED lamp strap in the interior of the lampshade are respectively installed with a separate drive circuit structure. The separate drive circuit structures disposed at the two ends are connected with a transmission line such that the separate drive circuit structures disposed at the two ends together constitute a drive circuit capable of driving the LED lamp strap to illuminate. Moreover, the separate drive circuit structure can effectively reduce the tube diameter of the lampshade.
    Type: Application
    Filed: August 29, 2012
    Publication date: June 20, 2013
    Inventors: Feng-Pin LEE, Chun-Chen Liu, Yu-Kuan Chang
  • Publication number: 20130128567
    Abstract: An improved light emitting diode (LED) lamp tube structure, comprising a lampshade, at least an LED lamp strap installed inside the lampshade and at least a drive circuit installed on any side of the interior of the lampshade, wherein the drive circuit includes multiple electronic components and a drive circuit board, in which the electronic components are insertion installed on one side of the drive circuit board, and at least an LED is insertion installed on the other side of the drive circuit board. Therefore, when the drive circuit drives the LED lamp strap to illuminate, it also drives the LEDs insertion installed on the other side of the drive circuit board to light up at the same time so the entire lampshade can illuminate completely.
    Type: Application
    Filed: August 22, 2012
    Publication date: May 23, 2013
    Inventors: Cheng-Ming Lee, Chun-Chen Liu, Yu-Kuan Chang
  • Publication number: 20100295160
    Abstract: A quad flat package (QDP) structure having an exposed heat sink is provided. The QDP structure includes a leadframe, a chip, a heat sink, an insulating layer and a molding compound. The leadframe includes a die pad and multiple leads surrounding the die pad. The chip is disposed on the die pad and electrically connected to the die pad and the leads. The heat sink has a top surface, a bottom surface opposite thereto, and a side surface connected to the top and the bottom surfaces. The die pad is disposed in a central area of the top surface of the heat sink and electrically connected to the heat sink. The molding compound encapsulates the chip, the die pad, an inner lead portion of each lead and heat sink, and exposes the bottom surface of the heat sink and an outer lead portion of each lead.
    Type: Application
    Filed: February 10, 2010
    Publication date: November 25, 2010
    Applicant: Advanced Semiconductor Engineering, Inc.
    Inventors: CHUN-CHEN LIU, Yu-Ren Chu
  • Patent number: 7692290
    Abstract: A heat slug includes a heat spreading member and a supporting member. The supporting member extends outwardly from the edge of the heat spreading member. The tips of the supporting member are formed with a plurality of contact portions, wherein each said contact portion has a bottom face inclined to the surface of the chip carrier art an angle of more that 5 degrees.
    Type: Grant
    Filed: October 14, 2008
    Date of Patent: April 6, 2010
    Assignee: Advanced Semiconductor Engineering, Inc.
    Inventors: Yun Lung Chang, Pin Hung Chiu, Chun Chen Liu
  • Publication number: 20090039483
    Abstract: A heat slug includes a heat spreading member and a supporting member. The supporting member extends outwardly from the edge of the heat spreading member. The tips of the supporting member are formed with a plurality of contact portions, wherein each said contact portion has a bottom face inclined to the surface of the chip carrier at an angle of more than 5 degrees. The present invention further provides a semiconductor package.
    Type: Application
    Filed: October 14, 2008
    Publication date: February 12, 2009
    Applicant: ADVANCED SEMICONDUCTOR ENGINEERING, INC.
    Inventors: Yun Lung CHANG, Pin Hung CHIU, Chun-Chen LIU
  • Publication number: 20060145666
    Abstract: The present invention discloses a device and method for charging an OTG portable device, which is capable of charging the OTG portable device no matter it is acting as an OTG A-Device or as an OTG B-Device since the OTG portable device is able to change the status of the charging device thereof according to an operation performed by a control unit thereof for detecting whether there is a power signal provided from a Vbus of an apparatus connected to the I/O port of the OTG portable device, and consequently, the means for charging the OTG portable device of the invention are diversified.
    Type: Application
    Filed: July 11, 2005
    Publication date: July 6, 2006
    Inventor: Chun-Chen Liu