Patents by Inventor Chih-Kai Chang

Chih-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: 10424873
    Abstract: A circuit board of an electrical connector includes two adjacent first touching contacts, two second touching contacts respectively arranged at two opposite outer sides of the two first touching contacts, a plurality of conductive circuits connected to the first and second touching contacts, a first layer-like capacitor, and a second layer-like capacitor, the latter two of which are embedded therein. The first layer-like capacitor includes two coplanar first comb-like portions spaced apart from each other. The second layer-like capacitor includes two coplanar second comb-like portions spaced apart from each other. The two first comb-like portions are respectively and electrically coupled to one of the two first touching contacts and one of the two second touching contacts, which are arranged away from each other. The two second comb-like portions are respectively and electrically coupled to the other first touching contact and the other second touching contact.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: September 24, 2019
    Assignees: U.D.ELECTRONIC CORP, U.D.(DONGGUAN)ELECTRONIC TECHNOLOGY CORP., U.D.(ZHONG JIANG)ELECTRONIC CORP.
    Inventors: Chih-Kai Chang, Yao-Ching Huang, Shih-Hung Chang
  • Patent number: 10396506
    Abstract: A compact cable connector includes an insulative block set consisting of a docking member and a terminal holder block assembly, a circuit board set including an input circuit board vertically set between the docking member and the terminal holder block assembly and an output circuit board transversely mounted on the top of the terminal holder block assembly, and a terminal set including input terminals transversely mounted in the docking member and electrically bonded to the input circuit board, output terminals vertically mounted in the terminal holder block assembly and electrically bonded to the output circuit board and connection terminals electrically connected between the input circuit board and the output circuit board.
    Type: Grant
    Filed: September 3, 2018
    Date of Patent: August 27, 2019
    Assignees: U.D.ELECTRONIC CORP., U.D.(DONGGUAN) ELECTRONIC TECHNOLOGY CORP., U.D.(ZHONG JIANG) ELECTRONIC CORP.
    Inventors: Chih-Kai Chang, Bin Zeng, Yao-Ching Huang
  • Patent number: 10396505
    Abstract: A filter connector includes an insulative housing including a docking head and a base member, and an electrical module including a circuit board defining a first lateral side and a second lateral side, a plurality of input terminals mounted in the docking head and bonded to the first lateral side of the circuit board and a plurality of output terminals mounted in the base member and bonded to the second lateral side of the circuit board. Thus, the circuit board is vertically secured between the input terminals, ensuring that the filter connector is small in size, simple in structure, and easy to manufacture, and has a filtering function, thereby greatly improving the electric perform.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: August 27, 2019
    Assignees: U.D.ELECTRONIC CORP., U.D.(DONGGUAN) ELECTRONIC TECHNOLOGY CORP., U.D.(ZHONG JIANG) ELECTRONIC CORP.
    Inventors: Chih-Kai Chang, Bin Zeng, Yao-Ching Huang
  • Publication number: 20190240928
    Abstract: A method for forming a resin-based composite structure is provided. The method includes: providing a prepreg layup, wherein the prepreg layup includes an epoxy resin-carbon fiber composite material; covering a thermal-fusion material on a surface of the prepreg layup; and performing a molding and curing process to fuse the thermal-fusion material with the prepreg layup. Wherein the molding and curing process includes: heating at a first temperature to melt, soften and fully fuse the thermal-fusion material with the prepreg layup; and heating at a second temperature to solidify the thermal-fusion material for forming the resin-based composite structure. Wherein the first temperature is lower than the second temperature.
    Type: Application
    Filed: January 30, 2019
    Publication date: August 8, 2019
    Inventors: Yao-Tun CHIANG, Chih-Kai CHANG, Ching-Yao LIN
  • Patent number: 10326246
    Abstract: An electrical connector with filtering function includes a high-speed interface, a filter module and a hood. The high-speed interface includes an insulating body and connecting terminals; the filter module is installed at a rear end of a circular cross-section of the insulating body; the filter module includes a lid with output terminals and grounding terminals and a horizontally configured PCB; and the grounding terminals include a first connecting end electrically connected to the PCB and a second connecting end integrally connected to the first connecting end and attached onto the external surface of the lid. The hood covers the lid and has a screw hole corresponding to the second connecting end for a locking screw being screwed in, and press tightly at the second connecting end to achieve the grounding and shielding of the PCB by the grounding terminal and the electrical connection of the locking screw to the hood.
    Type: Grant
    Filed: September 4, 2018
    Date of Patent: June 18, 2019
    Assignees: U. D. ELECTRONIC CORP., U. D. (DONGGUAN) ELECTRONIC TECHNOLOGY CORP., U. D. (ZHONG JIANG) ELECTRONIC CORP.
    Inventors: Chih-Kai Chang, Shih-Long Zou, Yao-Ching Huang
  • Publication number: 20190089103
    Abstract: An electrical connector with filtering function includes a high-speed interface, a filter module and a hood. The high-speed interface includes an insulating body and connecting terminals; the filter module is installed at a rear end of a circular cross-section of the insulating body; the filter module includes a lid with output terminals and grounding terminals and a horizontally configured PCB; and the grounding terminals include a first connecting end electrically connected to the PCB and a second connecting end integrally connected to the first connecting end and attached onto the external surface of the lid. The hood covers the lid and has a screw hole corresponding to the second connecting end for a locking screw being screwed in, and press tightly at the second connecting end to achieve the grounding and shielding of the PCB by the grounding terminal and the electrical connection of the locking screw to the hood.
    Type: Application
    Filed: September 4, 2018
    Publication date: March 21, 2019
    Inventors: CHIH-KAI CHANG, SHIH-LONG ZOU, YAO-CHING HUANG
  • Publication number: 20190089102
    Abstract: A compact cable connector includes an insulative block set consisting of a docking member and a terminal holder block assembly, a circuit board set including an input circuit board vertically set between the docking member and the terminal holder block assembly and an output circuit board transversely mounted on the top of the terminal holder block assembly, and a terminal set including input terminals transversely mounted in the docking member and electrically bonded to the input circuit board, output terminals vertically mounted in the terminal holder block assembly and electrically bonded to the output circuit board and connection terminals electrically connected between the input circuit board and the output circuit board.
    Type: Application
    Filed: September 3, 2018
    Publication date: March 21, 2019
    Inventors: Chih-Kai CHANG, Bin ZENG, Yao-Ching HUANG
  • Publication number: 20190089101
    Abstract: A filter connector includes an insulative housing including a docking head and a base member, and an electrical module including a circuit board defining a first lateral side and a second lateral side, a plurality of input terminals mounted in the docking head and bonded to the first lateral side of the circuit board and a plurality of output terminals mounted in the base member and bonded to the second lateral side of the circuit board. Thus, the circuit board is vertically secured between the input terminals, ensuring that the filter connector is small in size, simple in structure, and easy to manufacture, and has a filtering function, thereby greatly improving the electric perform.
    Type: Application
    Filed: September 5, 2018
    Publication date: March 21, 2019
    Inventors: Chih-Kai CHANG, Bin ZENG, Yao-Ching HUANG
  • Patent number: 10204596
    Abstract: A controller for generating an output image to be rendered on a transparent display panel is provided. The controller is configured to: receive an input image; calculate an opacity of each pixel in the input image according to a predetermined equation associated with the transparent display panel; determine a display mode of one or more portions of the input image according to transparency indication information associated with the one or more portions of the input image, wherein the display mode corresponds to transparency of the one or more portions in the input image; and obtain the output image to be displayed on the transparent display panel according to the determined display mode of the one or more portion of the input image.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: February 12, 2019
    Assignee: MEDIATEK INC.
    Inventors: Chih-Kai Chang, Tsu-Ming Liu
  • Patent number: 10136114
    Abstract: A projection display component of an electronic device includes a carrier and a first cover. The carrier is arranged to carry the electronic device. The first cover is arranged to partially reflect a projected image from the electronic device. The first cover is attached to the carrier via a first hinge set.
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: November 20, 2018
    Assignee: MEDIATEK INC.
    Inventors: Tsu-Ming Liu, Chih-Kai Chang, Chi-Cheng Ju, Chih-Ming Wang
  • Publication number: 20180301607
    Abstract: An LED lead frame structure includes a lamp body, and a stamped metal frame including transversely spaced and longitudinally extended first longitudinal frame portion and second longitudinal frame portion, longitudinally spaced and transversely extended first transverse frame portion and second transverse frame portion and a material strip frame. The first transverse frame portion is integrally connected to a rear end of the first longitudinal frame portion. The second transverse frame portions integrally connected to a rear end of the second longitudinal frame portion. This product can be regarded as a semi-finished product having a bendable structure and can be bent again if necessary, and thus, this design can reduce the number of times in bending lamp pins.
    Type: Application
    Filed: April 2, 2018
    Publication date: October 18, 2018
    Inventors: Chih-Kai CHANG, Qiang LEE, Yao-Ching HUANG
  • Patent number: 10075099
    Abstract: A power generation apparatus and a touch apparatus with grain materials are provided. The power generation apparatus includes a grain material layer, a first electrode, an electric material layer, a second electrode and a conductive wire. The first electrode is electrically connected to the grain material layer. The electric material layer corresponds to the grain material layer, and a gap is formed between the grain material layer and the electric material layer. The second electrode is electrically connected to the electric material layer. The conductive wire is electrically connected to the first electrode and the second electrode. The grain material layer and the electric material layer interact with each other to generate a current or a voltage. Thereby, the present invention can generate power by utilizing a grain material.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: September 11, 2018
    Assignee: NATIONAL TSING HUA UNIVERSITY
    Inventors: Jyh-Ming Wu, Chih-Kai Chang, Yu-Ting Chang
  • Patent number: 10055563
    Abstract: A wearable device interactive system and techniques, methods and apparatuses thereof are described. A wearable device may sense a movement by a user wearing the wearable device. The wearable device may also determine whether a path of the movement corresponds to one or more predefined patterns. The wearable device may further perform one or more operations in response to a determination that the path of the movement corresponds to at least one of the one or more predefined patterns.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: August 21, 2018
    Assignee: MEDIATEK INC.
    Inventors: Yu-Hao Huang, Chih-Kai Chang, Chun-Chia Chen, Tsu-Ming Liu
  • Publication number: 20180218594
    Abstract: A depth-control method for home appliances in an indoor space and an associated electronic system are provided. The method includes the steps of: connecting the home appliances to a portable electronic device via one or more wireless channels; obtaining identity information for the home appliances using the portable electronic device via the one or more wireless channels; detecting sensor data associated with the portable electronic device; selecting one among a first set of the home appliances according to the sensor data; and controlling the selected home appliance using the portable electronic device.
    Type: Application
    Filed: January 30, 2017
    Publication date: August 2, 2018
    Inventors: Chih-Kai CHANG, Shuo-Li SHIH, Chun-Chia CHEN, Tsu-Ming LIU
  • Publication number: 20180208265
    Abstract: A joint structure of a composite bicycle frame includes a base layer and at least one reinforcing layer. The base layer is made of a first polymeric matrix material doped with a plurality of first fibers. The first fibers have random fiber orientation, and the base layer has a first thickness. The reinforcing layer is adhesively connected to the base layer. The reinforcing layer is made of a second polymeric matrix material doped with a plurality of second fibers. The second fibers have a single fiber orientation. The reinforcing layer has a second thickness which is smaller than the first thickness of the base layer.
    Type: Application
    Filed: January 18, 2018
    Publication date: July 26, 2018
    Inventors: Chi-Wei LO, Chih-Kai CHANG, Hsu-Pin HSIN, Hung-Chikh LAI
  • Publication number: 20180170097
    Abstract: A carbon fiber wheel rim is disclosed. The carbon fiber wheel rim is corresponding disposed between two braking elements, and includes a rim body and a reinforcing layer. The rim body is made of a carbon fiber composites material. The reinforcing layer is disposed on a surface of the rim body, wherein the reinforcing layer is made of a fibrous veil having an isotropy.
    Type: Application
    Filed: May 8, 2017
    Publication date: June 21, 2018
    Inventors: Chi-Wei LO, Chih-Kai CHANG
  • Publication number: 20180124312
    Abstract: Methods and apparatus of compression for pre-stitched pictures captured by multiple cameras of a panoramic video capture device are disclosed. At the encoder side, stitching information associated with a stitching process to form the pre-stitched pictures is used to encode a current block according to embodiments of the present invention, where the stitching information comprises calibration data, matching results, seam position, blending level, sensor data, or a combination thereof. In one embodiment, the stitching information corresponds to matching results associated with a projection process, and projection-based Inter prediction is used to encode the current block by projecting a reference block in a reference pre-stitched picture to coordinates of the current block. In another embodiment, the stitching information corresponds to seam information associated with seam detection, and seam-based Inter prediction is used to encode the current block by utilizing the seam information.
    Type: Application
    Filed: May 22, 2017
    Publication date: May 3, 2018
    Inventors: Tsui-Shan CHANG, Yu-Hao HUANG, Chih-Kai CHANG, Tsu-Ming LIU
  • Publication number: 20180107226
    Abstract: A path planning method applied to a navigation device includes acquiring a two-dimensional depth map, transforming the two-dimensional depth map into a gray distribution map via statistics of pixel values on the two-dimensional depth map, computing a space matching map by arranging pixel counts on the gray distribution map, and computing a weighting value about each angle range of the space matching map in accordance with a distance from location of a pixel count to a reference point of the space matching map. The weighting value represents existential probability of an obstacle within the said angle range and a probable distance between the navigation device and the obstacle.
    Type: Application
    Filed: October 17, 2017
    Publication date: April 19, 2018
    Inventors: Kai-Min Yang, Chih-Kai Chang, Tsu-Ming Liu
  • Patent number: 9946298
    Abstract: A wearable device interactive system and techniques, methods and apparatuses thereof are described. A wearable device may sense a user input by a hand of the user, analyze the user input, and perform one or more operations responsive to a result of the analysis. For example, the wearable device may launch an application corresponding to the user input. As another example, the wearable device may recognize a text at a fingertip of the user and determine a location of the wearable device to determine a context, and launch an application corresponding to the context.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: April 17, 2018
    Assignee: MEDIATEK INC.
    Inventors: Chih-Kai Chang, Yu-Hao Huang, Chun-Chia Chen, Tsu-Ming Liu
  • Patent number: 9780466
    Abstract: A RJ connector assembly having the characteristics of simple structural design, effective and rational use of space and compact structure is disclosed to include an input PCB module including an input PC board and two RJ modular terminal blocks bonded to two opposite sides of the input PC board, an output PCB module including an output PC board disposed in parallel to the input PC board and an output interface located on the output PC board, and a connecting PCB module including a connecting PC board with a top side thereof electrically bonded to the input PC board and an opposing bottom side thereof electrically bonded to the output PC board.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: October 3, 2017
    Assignee: U.D.ELECTRONIC CORP.
    Inventors: Chih-Kai Chang, Bin Zeng, Yao-Ching Huang