Patents by Inventor Chih-Hung Chen

Chih-Hung Chen 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: 20180034467
    Abstract: An oscillator configured to generate an oscillation signal is provided. The oscillator includes a transistor pair and a cross-coupled transistor pair. The transistor pair is coupled to a first current source and has a first transconductance. The first transconductance is changed in response to a current value of the first current source. The cross-coupled transistor pair is coupled to a second current source and has a second transconductance. The second transconductance is changed in response to a current value of second current source. The transistor pair and the cross-coupled transistor pair are mutually coupled by a plurality of inductors. A frequency of the oscillation signal is determined according to the first transconductance and the second transconductance. Furthermore, a clock generator and a method for generating a clock signal thereof are also provided.
    Type: Application
    Filed: October 5, 2017
    Publication date: February 1, 2018
    Applicant: Novatek Microelectronics Corp.
    Inventors: Chih-Hsiang Chang, Chih-Hung Chen
  • Patent number: 9865477
    Abstract: The present disclosure provides a semiconductor fabrication apparatus in accordance with one embodiment. The apparatus includes a wafer stage that is operable to secure and rotate a wafer; a polish head configured to polish a backside surface of the wafer; an air bearing module configured to apply an air pressure to a front surface of the wafer; and an edge sealing unit configured to seal edges of the wafer.
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: January 9, 2018
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Chih-Hung Chen, Chia-Jung Hsu, Yi-An Lin
  • Publication number: 20170352504
    Abstract: A luminous keyswitch includes a keycap having a light-transparent portion, a baseplate, an up-down mechanism with two ends respectively moveably connected to the keycap and the baseplate, a function sheet disposed on or under the baseplate, and a light source disposed on the function sheet within a vertical projection of the keycap and connected by a copper wire to provide a light illuminating the light-transparent portion. The function sheet includes a flexible upper circuit layer having a first contact point, a flexible spacer layer having a hole, and a flexible lower circuit layer having a second copper contact point, a third copper contact point, a first copper wire connected to the second copper contact point, and a second copper wire connected to the third copper contact point. When the keycap is pressed, the first contact point passes through the hole to electrically connect the second and third copper contact points.
    Type: Application
    Filed: June 1, 2017
    Publication date: December 7, 2017
    Applicant: DARFON ELECTRONICS CORP.
    Inventors: CHIH-HUNG CHEN, HSIN-CHENG HO
  • Patent number: 9819348
    Abstract: An oscillator configured to generate an oscillation signal is provided. The oscillator includes a transistor pair and a cross-coupled transistor pair. The transistor pair is coupled to a first current source and has a first transconductance. The first transconductance is changed in response to a current value of the first current source. The cross-coupled transistor pair is coupled to a second current source and has a second transconductance. The second transconductance is changed in response to a current value of second current source. The transistor pair and the cross-coupled transistor pair are mutually coupled by a plurality of inductors. A frequency of the oscillation signal is determined according to the first transconductance and the second transconductance. Furthermore, a clock generator and a method for generating a clock signal thereof are also provided.
    Type: Grant
    Filed: August 19, 2015
    Date of Patent: November 14, 2017
    Assignee: Novatek Microelectronics Corp.
    Inventors: Chih-Hsiang Chang, Chih-Hung Chen
  • Patent number: 9772064
    Abstract: A display with a supporting mechanism includes a display module and a supporting device connecting the display module. The supporting device includes a base and a rotatable support. The base is used for fixing the display module and includes a first constraint structure. The rotatable support includes a rotation member pivotally connected to the base, a connection member, and a handle pivotally connected to the rotation member through the connection member. The connection member includes a second constraint structure engaged with or disengaged from the first constraint structure. Therein, when the rotation member is located at a position relative to the base, the first and second constraint structures are engaged with each and thus prevent the handle from rotating relative to the rotation member through the connection member, so that a user can carry the display module by gripping the handle with a hand.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: September 26, 2017
    Assignees: Qisda (Suzhou) Co., Ltd., Qisda Corporation
    Inventors: Chih-Hung Chen, Ching-Lin Yeh, Kuo-Wei Ling
  • Patent number: 9751189
    Abstract: A polishing device includes a housing, a flexible base coupled to the housing, and a contact region disposed on a first side of the flexible base, wherein the flexible base expands and contracts based on pressure contained within the housing and a second side of the flexible base to form a contact area on the first side that is less than a surface area of the flexible base.
    Type: Grant
    Filed: September 4, 2014
    Date of Patent: September 5, 2017
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Chih Hung Chen, Jay Gurusamy, Steven M. Zuniga
  • Publication number: 20170243733
    Abstract: The present disclosure provides a semiconductor fabrication apparatus in accordance with one embodiment. The apparatus includes a wafer stage that is operable to secure and rotate a wafer; a polish head configured to polish a backside surface of the wafer; an air bearing module configured to apply an air pressure to a front surface of the wafer; and an edge sealing unit configured to seal edges of the wafer.
    Type: Application
    Filed: February 24, 2016
    Publication date: August 24, 2017
    Inventors: Chih-Hung Chen, Chia-Jung Hsu, Yi-An Lin
  • Patent number: 9705987
    Abstract: A server control method and a chassis controller are proposed. The server control method includes: determining whether the chassis controller is connected to a blade server when a power of the chassis controller is on; when the chassis controller is connected to the blade serve, further determining whether the blade server operates normally; when the blade server operates normally, switching the chassis controller to a slave device of the blade server, and controlling a just a bunch of disk (JBOD) system in response to a control command of the blade server.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: July 11, 2017
    Assignee: Wistron Corporation
    Inventors: Cheng-Kuang Hsieh, Chih-Hung Chen
  • Patent number: 9623613
    Abstract: A plastic bag is provided. The plastic bag includes a first wall made of a first material with a first thickness dimension and a second wall made of the first material with a second thickness dimension, wherein an opening is formed on a first side of the first wall and the second wall and a second side of the first wall and the second wall is sealed together. The plastic bag also includes a first strip made of a second material with a third thickness dimension disposed on the first wall. The plastic bag further includes a first section on the first wall having a fourth thickness dimension. The fourth thickness dimension is smaller than the first thickness dimension. The first strip and the first section align to form a first weakened zone.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: April 18, 2017
    Inventor: Chih-Hung Chen
  • Publication number: 20170044516
    Abstract: The present disclosure provides a biochemistry reactive material, including a substrate and an enzyme composition immobilized on the substrate. The enzyme composition is selected from a group consisting of a first enzyme, a second enzyme, and a combination thereof. The first enzyme is used for eliminating a glycan residue of an electronegative low-density lipoprotein (electronegative LDL). The second enzyme is used for eliminating ceramide carried by an electronegative low-density lipoprotein. The biochemistry reactive material is capable of eliminating electronegative low-density lipoprotein.
    Type: Application
    Filed: December 30, 2015
    Publication date: February 16, 2017
    Applicant: Industrial Technology Research Institute
    Inventors: Pei-Yi Tsai, Chih-Hung CHEN, Yi-Hung LIN, Chih-Chieh HUANG, Hsin-Hsin SHEN, Liang-Yin KE, Chu-Huang CHEN
  • Publication number: 20160295716
    Abstract: A display with a supporting mechanism includes a display module and a supporting device connecting the display module. The supporting device includes a base and a rotatable support. The base is used for fixing the display module and includes a first constraint structure. The rotatable support includes a rotation member pivotally connected to the base, a connection member, and a handle pivotally connected to the rotation member through the connection member. The connection member includes a second constraint structure engaged with or disengaged from the first constraint structure. Therein, when the rotation member is located at a position relative to the base, the first and second constraint structures are engaged with each and thus prevent the handle from rotating relative to the rotation member through the connection member, so that a user can carry the display module by gripping the handle with a hand.
    Type: Application
    Filed: March 31, 2016
    Publication date: October 6, 2016
    Inventors: Chih-Hung Chen, Ching-Lin Yeh, Kuo-Wei Ling
  • Patent number: 9453615
    Abstract: A sensing type lighting device includes a lighting main body, a sensing element, and an electromagnetic wireless communication module. The lighting main body includes a controlling circuit and a light source set. The sensing element and the electromagnetic wireless communication module are disposed within the lighting main body. A controlling method for a sensing type lighting group includes the following steps. Firstly, a first lighting device with a first sensing element and a first electromagnetic wireless communication module is provided. Then, a second lighting device with a second electromagnetic wireless communication module is provided. According to an environmental sensing result of the first sensing element, a communication channel between the first and second electromagnetic wireless communication modules is established. Consequently, a light intensity of the first lighting device and/or the second lighting device is correspondingly controlled.
    Type: Grant
    Filed: January 12, 2012
    Date of Patent: September 27, 2016
    Assignee: Linvingstyle Enterprises Limited
    Inventors: Ming-Yun Chen, Chih-Hung Chen
  • Publication number: 20160176014
    Abstract: Embodiments of the present invention provide systems, apparatus, and methods for an improved polishing head including an upper portion and a lower portion, the lower portion adapted to hold a substrate and to tilt relative to the upper portion, the tilt enabled by a spherical bearing, wherein the lower portion is adapted to tilt while rotating the substrate against a rotating polishing pad so that the lower portion remains flush against the rotating polishing pad while resisting lateral friction force generated by the rotating polishing pad contacting the substrate and pushing the substrate laterally against the lower portion. Numerous additional aspects are disclosed.
    Type: Application
    Filed: February 17, 2015
    Publication date: June 23, 2016
    Inventors: Jay Gurusamy, Jeonghoon Oh, Chih Hung Chen, Samuel Hsu, Gautam Dandavate
  • Patent number: 9352441
    Abstract: A chemical mechanical polishing system is provided. The chemical mechanical polishing system includes a platen, a load cup, a hub, a first polishing arm cantilevered from the hub and rotatable around the centerline of the hub between the platen and load cup, and a second polishing arm cantilevered from the hub and rotatable around the centerline of the hub between the platen and load cup the second arm rotatable independently from the hub.
    Type: Grant
    Filed: October 9, 2014
    Date of Patent: May 31, 2016
    Inventors: Steven M. Zuniga, Chih Hung Chen, Jay Gurusamy
  • Publication number: 20160126959
    Abstract: An oscillator configured to generate an oscillation signal is provided. The oscillator includes a transistor pair and a cross-coupled transistor pair. The transistor pair is coupled to a first current source and has a first transconductance. The first transconductance is changed in response to a current value of the first current source. The cross-coupled transistor pair is coupled to a second current source and has a second transconductance. The second transconductance is changed in response to a current value of second current source. The transistor pair and the cross-coupled transistor pair are mutually coupled by a plurality of inductors. A frequency of the oscillation signal is determined according to the first transconductance and the second transconductance. Furthermore, a clock generator and a method for generating a clock signal thereof are also provided.
    Type: Application
    Filed: August 19, 2015
    Publication date: May 5, 2016
    Inventors: Chih-Hsiang Chang, Chih-Hung Chen
  • Patent number: 9307655
    Abstract: A circuit board module includes a first circuit board, an electrically conductive structure, a first bump, a second circuit board and an electrically conductive film. The electrically conductive structure and the first bump are disposed on the supporting surface of the first circuit board. The electrically conductive structure and the first bump respectively have a first maximal thickness T1 and a second maximal thickness T2 along the normal direction of the supporting surface. The second circuit board is disposed on the electrically conductive structure and the first bump. The electrically conductive film is disposed between the second circuit board and the electrically conductive structure, and it has a plurality of electrically conductive particles. An average particle diameter D of the electrically conductive particles when undeformed satisfies: 0<T2?T1?D.
    Type: Grant
    Filed: July 2, 2014
    Date of Patent: April 5, 2016
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Chih-Hung Chen, Po-Fu Huang, Chih-Hao Wang
  • Publication number: 20160075010
    Abstract: According to an embodiment, a toolbox includes a housing, one or more drawers received in the housing, and a handle extending from the housing. The handle comprises a pair of spaced grasping surfaces connected by a central grasping surface, the spaced grasping surface and the central grasping surface each spaced from the housing. According to another embodiment, a toolbox includes a housing and one or more drawers slidably received in the housing. The one or more drawers each comprise an integral latch, and the housing comprises an integral latch receptacle. Closing the drawer of the toolbox with a first amount of force does not engage the integral latch with the latch receptacle, while closing the drawer of the toolbox with a second amount of force automatically engages the integral latch with the latch receptacle, securing the one or more drawers within the housing.
    Type: Application
    Filed: September 11, 2015
    Publication date: March 17, 2016
    Inventors: Terry L. Gonzales, John C. Murray, Megan E. McNeill, Chih-Hung Chen, I, Tolga Caglar, Jin Chi Huang, Oaty A. Frye, JR.
  • Publication number: 20160072887
    Abstract: A server control method and a chassis controller are proposed. The server control method includes: determining whether the chassis controller is connected to a blade server when a power of the chassis controller is on; when the chassis controller is connected to the blade serve, further determining whether the blade server operates normally; when the blade server operates normally, switching the chassis controller to a slave device of the blade server, and controlling a just a bunch of disk (JBOD) system in response to a control command of the blade server.
    Type: Application
    Filed: November 18, 2014
    Publication date: March 10, 2016
    Inventors: Cheng-Kuang Hsieh, Chih-Hung Chen
  • Publication number: 20160019177
    Abstract: A storage system and a data transferring method thereof are provided. The storage system includes at least one drawer storage device, a backplane board and a processing unit. Each of the drawer storage devices accommodates at least one storage device, and has a first connecting interface. The backplane board has a second connecting interface. The backplane board and each of the drawer storage devices are connected with each other through a transmission line. The first connecting interface and the second connecting interface are connected or isolated with each other. The processing unit detects a connection status between the first connecting interface and the second connecting interface, and determines to transfer data through at least one of the transmission line and a connection between the first connecting interface and the second connecting interface according to the connection status.
    Type: Application
    Filed: October 17, 2014
    Publication date: January 21, 2016
    Inventors: Cheng-Kuang Hsieh, Chih-Hung Chen
  • Patent number: D771387
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: November 15, 2016
    Assignee: Stanley Black & Decker, Inc.
    Inventors: Terry L. Gonzales, John C. Murray, Megan E. McNeill, Chih-Hung Chen, I, Tolga Caglar, Jin Chi Huang, Oaty A. Frye, Jr.