Patents by Inventor Ching-Kai CHANG

Ching-Kai CHANG 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: 11120722
    Abstract: A data transmission method applied in a display, which includes a display panel, is provided. The data transmission method includes the following steps of: providing a host controller and n display drivers, n is a natural number greater than 1; providing a communication link under mobile industry processor interface (MIPI), connecting the host controller to the n display drivers; determining n virtual channel values Vc1-Vcn corresponding to the respective n display drivers; employing the host controller for providing a command with a virtual channel parameter through the communication link under MIPI; when the virtual channel parameter corresponds to an ith virtual channel values Vci, an ith display driver executing corresponding operations in response to the command, while the rest n?1 display drivers ignoring the command, wherein i is a natural number smaller than or equal to n.
    Type: Grant
    Filed: October 27, 2019
    Date of Patent: September 14, 2021
    Assignee: Novatek Microelectronics Corp.
    Inventors: Po-Chuan Chang-Chian, Chun-Yi Chou, Wing-Kai Tang, Ching-Chun Lin, Chih-Wei Tang
  • Patent number: 11112322
    Abstract: A bicycle has a spider including a torque input section and at least one torque output section; a crank assembly coupled with the spider through the torque input section and applying an input torque to the spider; a chainring mounted to the spider through the at least one torque output section and receiving an output torque from the spider; a gauge disposed and oriented generally along a tangential direction or a quasi-tangential direction with respect to the torque input section and the at least one torque output section; and a circuitry coupled to the gauge and receiving a signal from the gauge.
    Type: Grant
    Filed: August 16, 2019
    Date of Patent: September 7, 2021
    Assignee: GIANT MANUFACTURING CO. LTD.
    Inventors: Chih-Kai Chang, Ching-Yao Lin
  • Patent number: 11109505
    Abstract: A locating device includes a guiding member, a sliding member and a pulling assembly. The guiding member includes a guiding channel inwardly cut through a top thereof, and the sliding member has side plates which each has a locating part. The pulling assembly comprises a pulling body having a guiding element, a fastening element disposed on a side thereof opposite to the guiding element. When the pulling body is in an open state, the fastening element is not located on the locating part; when the pulling body performs a locking operation, the guiding element is slid in the guiding channel and the sliding member is simultaneously slid in another direction opposite to the guiding element; when the pulling body is in a locked state, the fastening element is located on the locating part. Therefore, operational difficulty can be reduced and assembly speed can be improved.
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: August 31, 2021
    Assignee: HANWIT PRECISION INDUSTRIES LTD.
    Inventors: Ming-De Wu, Ching-Kai Chang
  • Patent number: 11018452
    Abstract: A positioning fastener includes a base having a seat plate extended therefrom, a fixing portion disposed below the base for fastening to an electronic substrate, and an elastic positioning structure disposed above the base and including an urging plate, a pressing plate connected to the urging plate, a positioning space defined therein and a positioning member disposed at a bottom side thereof. The urging plate and the pressing plate are squeezed backwards and elastically deformed by a circuit board that is rotated downward so that the circuit board passes the urging plate and moves into the positioning space of the elastic positioning structure and a suspended board edge of the circuit board is secured in position by the positioning member. The pressing plate can be pressed by an external force to lift the urging plate, allowing the circuit board to be rotated in direction away from the positioning member.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: May 25, 2021
    Assignee: HANWIT PRECISION INDUSTRIES LTD.
    Inventors: Ming-De Wu, Ching-Kai Chang
  • Publication number: 20210064102
    Abstract: A fastener includes a base having a joint plate extended therefrom toward a first direction, a joint plate extended from the joint plate toward a second direction and configured to secure to an electronic base board, and a fastening member protruded thereon toward a third direction. The fastener includes an elastic compressive unit connected to the joint plate and including a pushing part configured to abut with a circuit board downwardly rotated. Subject to the stress in the first direction and applied by the circuit board, the pushing part is moved back and the elastically-compressive unit is compressed to make the circuit board rotate to the bottom side of the pushing part, and an edge of the circuit board can be inserted into and abutted thereon the fastening member, and the circuit board is accommodated in a fastening space formed on the outside of the fastening member.
    Type: Application
    Filed: November 17, 2020
    Publication date: March 4, 2021
    Inventors: Ying-Chih TSENG, Ching-Kai CHANG
  • Patent number: 10759039
    Abstract: A handle mounting structure includes a handle including a handle shaft with a sliding space defined in one side thereof and a mounting unit located at one end thereof, a locking mechanism including an insert plate slidably inserted into the sliding space and a torsion spring mounted in the sliding space and stopped between the handle and the insert plate to impart a pressure to the insert plate toward the outside of the sliding space, and a positioning device including a flat base pivotally coupled to the handle and a hook block located at a bottom side of the flat base. The handle can be fastened to a sliding box of a cabinet through locking mechanism and the positioning device, so that the handle is not easily separated from the sliding box, and the sliding box can be surely pulled out of or pushed into the cabinet through the handle.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: September 1, 2020
    Assignee: HANWIT PRECISION INDUSTRIES LTD.
    Inventors: Ming-De Wu, Ching-Kai Chang
  • Publication number: 20200244008
    Abstract: A positioning fastener includes a base having a seat plate extended therefrom, a fixing portion disposed below the base for fastening to an electronic substrate, and an elastic positioning structure disposed above the base and including an urging plate, a pressing plate connected to the urging plate, a positioning space defined therein and a positioning member disposed at a bottom side thereof. The urging plate and the pressing plate are squeezed backwards and elastically deformed by a circuit board that is rotated downward so that the circuit board passes the urging plate and moves into the positioning space of the elastic positioning structure and a suspended board edge of the circuit board is secured in position by the positioning member. The pressing plate can be pressed by an external force to lift the urging plate, allowing the circuit board to be rotated in direction away from the positioning member.
    Type: Application
    Filed: September 24, 2019
    Publication date: July 30, 2020
    Inventors: Ming-De WU, Ching-Kai CHANG
  • Patent number: 10645822
    Abstract: A locating device includes casing including position-limiting member defining therein receiving space and two opposing receiving slots and mounting structure on two opposite side walls thereof, fitting member having recess, through hole cut through recess, axle structure provided in recess and positioning structure for positioning in mounting structure of casing, and operating device set including lever having pivot connection head inserted through through hole into receiving space, pivot connection portion located on pivot connection head and pivotally connected to axle structure and sliding slot located on pivot connection head and sliding rod movably mounted in sliding slot and having end portion located on each of two opposite ends thereof and disposed in receiving slot. Operating device set is movable relative to fitting member between an open position where the positioning structure is unlocked from mounting structure, and a close position where the positioning structure is locked to mounting structure.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: May 5, 2020
    Assignee: Hanwit Precision Industries Ltd.
    Inventors: Ming-De Wu, Ching-Kai Chang
  • Publication number: 20200061800
    Abstract: A handle mounting structure includes a handle including a handle shaft with a sliding space defined in one side thereof and a mounting unit located at one end thereof, a locking mechanism including an insert plate slidably inserted into the sliding space and a torsion spring mounted in the sliding space and stopped between the handle and the insert plate to impart a pressure to the insert plate toward the outside of the sliding space, and a positioning device including a flat base pivotally coupled to the handle and a hook block located at a bottom side of the flat base. The handle can be fastened to a sliding box of a cabinet through locking mechanism and the positioning device, so that the handle is not easily separated from the sliding box, and the sliding box can be surely pulled out of or pushed into the cabinet through the handle.
    Type: Application
    Filed: August 21, 2018
    Publication date: February 27, 2020
    Inventors: Ming-De WU, Ching-Kai CHANG
  • Publication number: 20190394889
    Abstract: A locating device includes casing including position-limiting member defining therein receiving space and two opposing receiving slots and mounting structure on two opposite side walls thereof, fitting member having recess, through hole cut through recess, axle structure provided in recess and positioning structure for positioning in mounting structure of casing, and operating device set including lever having pivot connection head inserted through through hole into receiving space, pivot connection portion located on pivot connection head and pivotally connected to axle structure and sliding slot located on pivot connection head and sliding rod movably mounted in sliding slot and having end portion located on each of two opposite ends thereof and disposed in receiving slot. Operating device set is movable relative to fitting member between an open position where the positioning structure is unlocked from mounting structure, and a close position where the positioning structure is locked to mounting structure.
    Type: Application
    Filed: March 19, 2019
    Publication date: December 26, 2019
    Inventors: Ming-De WU, Ching-Kai CHANG
  • Publication number: 20190394896
    Abstract: A locating device includes a guiding member, a sliding member and a pulling assembly. The guiding member includes a guiding channel inwardly cut through a top thereof, and the sliding member has side plates which each has a locating part. The pulling assembly comprises a pulling body having a guiding element, a fastening element disposed on a side thereof opposite to the guiding element. When the pulling body is in an open state, the fastening element is not located on the locating part; when the pulling body performs a locking operation, the guiding element is slid in the guiding channel and the sliding member is simultaneously slid in another direction opposite to the guiding element; when the pulling body is in a locked state, the fastening element is located on the locating part. Therefore, operational difficulty can be reduced and assembly speed can be improved.
    Type: Application
    Filed: January 7, 2019
    Publication date: December 26, 2019
    Inventors: Ming-De WU, Ching-Kai CHANG
  • Patent number: 10487866
    Abstract: The present disclosure illustrates a fastening device. In the fastening device, a sleeve is formed with a through-hole which defines a rotation space, a position-limiting ring is formed on the sleeve and includes a first position-limiting fastening groove and two second position-limiting fastening grooves; a fastening member is formed on a bottom surface of a rod head of a rotary knob device dispose outside the sleeve; a long protrusion rod and two short protrusion rods are formed in the sliding inner hole of the assembly space and respectively aligned with the first position-limiting fastening groove and the two second position-limiting fastening grooves. During locking operation, the drive cap can be bi-directionally rotated; and during unlocking operation, the drive cap can only be unidirectionally rotate, thereby achieving the purpose of easily recognize the locked or unlocked state according to different hand feeling in operation.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: November 26, 2019
    Assignee: HANWIT PRECISION INDUSTRIES LTD.
    Inventors: Ming-De Wu, Ching-Kai Chang
  • Publication number: 20180202482
    Abstract: The present disclosure illustrates a fastening device. In the fastening device, a sleeve is formed with a through-hole which defines a rotation space, a position-limiting ring is formed on the sleeve and includes a first position-limiting fastening groove and two second position-limiting fastening grooves; a fastening member is formed on a bottom surface of a rod head of a rotary knob device dispose outside the sleeve; a long protrusion rod and two short protrusion rods are formed in the sliding inner hole of the assembly space and respectively aligned with the first position-limiting fastening groove and the two second position-limiting fastening grooves. During locking operation, the drive cap can be bi-directionally rotated; and during unlocking operation, the drive cap can only be unidirectionally rotate, thereby achieving the purpose of easily recognize the locked or unlocked state according to different hand feeling in operation.
    Type: Application
    Filed: June 26, 2017
    Publication date: July 19, 2018
    Inventors: Ming-De WU, Ching-Kai CHANG