Patents by Inventor Chia-Chi Cheng

Chia-Chi Cheng 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: 20250092555
    Abstract: A manufacturing method of a roughened copper foil includes the following steps. A copper foil is provided. An electrolytic process is performed to form a roughening layer on the copper foil. An electrolyte solution in the electrolysis process includes copper ions in a range from 0.1 g/L to 20 g/L, sulfate ions in a range from 30 g/L to 120 g/L, and a coordination compound in a range from 0.1 g/L to 10 g/L.
    Type: Application
    Filed: October 25, 2023
    Publication date: March 20, 2025
    Applicant: NAN YA PLASTICS CORPORATION
    Inventors: Te-Chao Liao, Wei-Sheng Cheng, Yu-Chi Hsieh, Chia-Shan Chang
  • Publication number: 20250092554
    Abstract: A release carrier structure includes a carrier layer, a first release layer, and a second release layer. A weight ratio of organic matter in the second release layer is greater than a weight ratio of organic matter in the first release layer.
    Type: Application
    Filed: November 6, 2023
    Publication date: March 20, 2025
    Applicant: NAN YA PLASTICS CORPORATION
    Inventors: Te-Chao Liao, Wei-Sheng Cheng, Yu-Chi Hsieh, Chia-Shan Chang
  • Publication number: 20250096254
    Abstract: A lithium battery positive material includes lithium nickel manganese oxide (LNMO) doped with copper, titanium, nitrogen, and carbon. In addition, a manufacturing method of the lithium battery positive material is also provided.
    Type: Application
    Filed: October 26, 2023
    Publication date: March 20, 2025
    Applicant: NAN YA PLASTICS CORPORATION
    Inventors: Te-Chao Liao, Wei-Sheng Cheng, Chia-Shan Chang, Yu-Chi Hsieh
  • Publication number: 20250096843
    Abstract: An active single-ended transmission cable is disclosed. The active single-ended transmission cable allows connection between a first and a second electronic device and comprises a first port, a second port, and a transmission wire. The first or second port is used for receiving or transmitting a differential signal between the first and the second electronic devices, and for converting between a differential signal and a single-ended signal. The transmission wire is used for transmitting the single-ended signal. This allows the conversion between the received or transmitted differential signal at the first and second ports into the single-ended signal so as to allow the transmission of the single-ended signal within the transmission wire.
    Type: Application
    Filed: March 8, 2024
    Publication date: March 20, 2025
    Inventors: MIAOBIN GAO, HENG-JU CHENG, HSIN-CHE CHIANG, HUI-CHIN WU, CHIA-CHI HU, YI CHUANG
  • Patent number: 12218227
    Abstract: A semiconductor structure includes substrate, semiconductor layers, source/drain features, metal oxide layers, and a gate structure. The semiconductor layers extend in an X-direction and over the substrate. The semiconductor layers are spaced apart from each other in a Z-direction. The source/drain features are on opposite sides of the semiconductor layers in the X-direction. The metal oxide layers cover bottom surfaces of the semiconductor layers. The gate structure wraps around the semiconductor layers and the metal oxide layers. The metal oxide layers are in contact with the gate structure.
    Type: Grant
    Filed: August 10, 2023
    Date of Patent: February 4, 2025
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Shih-Hao Lin, Chia-Hung Chou, Chih-Hsuan Chen, Ping-En Cheng, Hsin-Wen Su, Chien-Chih Lin, Szu-Chi Yang
  • Patent number: 11916957
    Abstract: A technique to stop lateral movement of ransomware between endpoints in a VLAN is disclosed. A security appliance is set as the default gateway for intra-LAN communication by overwriting the DHCP responses. Message traffic from compromised endpoints is detected. Attributes of ransomware may be detected in the message traffic, as well as attempts to circumvent the security appliance. Compromised devices may be quarantined. Additionally, the DHCP address assignment may be policed to ensure accuracy and correctness to provide an additional layer of security.
    Type: Grant
    Filed: December 9, 2022
    Date of Patent: February 27, 2024
    Assignee: AIRGAP NETWORKS INC.
    Inventors: Raymond Wing Chon Cheh, Chia Chi Cheng, Satish M. Mohan, Ritesh R. Agrawal, Vinay Adavi
  • Patent number: 11073858
    Abstract: A power supply system for a circuit device includes a power supply unit, a switch unit and a voltage detector. The power supply unit, coupled to the circuit device via a power line, is used for supplying basic power for the circuit device via the power line, wherein the power line is coupled to the circuit device via a plurality of nodes. The switch unit, near to a node among the plurality of nodes, is coupled to the circuit device via the power line. The voltage detector, coupled to the circuit device and the switch unit, is used for detecting a voltage of the node and controlling the switch unit to be closed to allow the circuit device to receive auxiliary power via the switch unit when detecting that the voltage of the node is lower than a first threshold value.
    Type: Grant
    Filed: September 5, 2016
    Date of Patent: July 27, 2021
    Assignee: Sitronix Technology Corp.
    Inventor: Chia-Chi Cheng
  • Publication number: 20190018542
    Abstract: The present invention discloses a touch display driving circuit, which generates a plurality of scan signals and a plurality of source signals for driving a touch display panel to display images. The touch display driving circuit further comprises a touch detection circuit and one or more current-source. The touch detection circuit detects a plurality of sensing signals of the touch display panel in a touch detection cycle for detecting touches on the touch display panel. The one or more current-source outputs one or more current signal in the touch detection cycle for maintaining the average values of the levels of the plurality of scan signals or the average values of the levels of the plurality of source signal at a predetermined level and maintaining the display electrodes of the touch display panel floating.
    Type: Application
    Filed: July 17, 2018
    Publication date: January 17, 2019
    Inventor: CHIA-CHI CHENG
  • Patent number: 9997127
    Abstract: A digital-to-analog converter includes a first input end for reversely receiving a digital signal, a second input end for receiving multiple reference voltages arranged in a best order, wherein the best order is determined by reordering an initial order several times, multiple first switches coupled to each other stage by stage like a tree for selecting one of the reference voltages to be a first selection result, multiple second switches coupled in series for selecting one of the reference voltages to be a second selection result.
    Type: Grant
    Filed: May 16, 2016
    Date of Patent: June 12, 2018
    Assignee: Sitronix Technology Corp.
    Inventors: Yan-Gang Chen, Chia-Chi Cheng
  • Patent number: 9870751
    Abstract: A power supplying module for an electronic device with a display function includes a first power supplying unit, for charging an output end according to a first clock signal, wherein the output end is coupled to a driving module of the electronic device; and a clock generating unit, for adjusting the first clock signal when an event occurs to make the first power supplying unit charge the output end when the event occurs.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: January 16, 2018
    Assignee: Sitronix Technology Corp.
    Inventor: Chia-Chi Cheng
  • Patent number: 9787177
    Abstract: A power output circuit includes a charge pump, a voltage regulator, a clock generator and a voltage detector. The charge pump is used for receiving a clock signal having an operating frequency and outputting an output voltage. The voltage regulator, coupled to the charge pump, is used for outputting a control voltage to the charge pump, to control the output voltage. The clock generator, coupled to the charge pump, is used for outputting the clock signal to the charge pump. The voltage detector, coupled to the clock generator and the voltage regulator, is used for detecting the control voltage and controlling the clock generator to adjust the operating frequency of the clock signal according to a magnitude of the control voltage.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: October 10, 2017
    Assignee: Sitronix Technology Corp.
    Inventor: Chia-Chi Cheng
  • Publication number: 20170168517
    Abstract: A power supply system for a circuit device includes a power supply unit, a switch unit and a voltage detector. The power supply unit, coupled to the circuit device via a power line, is used for supplying basic power for the circuit device via the power line, wherein the power line is coupled to the circuit device via a plurality of nodes. The switch unit, near to a node among the plurality of nodes, is coupled to the circuit device via the power line. The voltage detector, coupled to the circuit device and the switch unit, is used for detecting a voltage of the node and controlling the switch unit to be closed to allow the circuit device to receive auxiliary power via the switch unit when detecting that the voltage of the node is lower than a first threshold value.
    Type: Application
    Filed: September 5, 2016
    Publication date: June 15, 2017
    Inventor: Chia-Chi Cheng
  • Publication number: 20170170724
    Abstract: A power output circuit includes a charge pump, a voltage regulator, a clock generator and a voltage detector. The charge pump is used for receiving a clock signal having an operating frequency and outputting an output voltage. The voltage regulator, coupled to the charge pump, is used for outputting a control voltage to the charge pump, to control the output voltage. The clock generator, coupled to the charge pump, is used for outputting the clock signal to the charge pump. The voltage detector, coupled to the clock generator and the voltage regulator, is used for detecting the control voltage and controlling the clock generator to adjust the operating frequency of the clock signal according to a magnitude of the control voltage.
    Type: Application
    Filed: June 29, 2016
    Publication date: June 15, 2017
    Inventor: Chia-Chi Cheng
  • Publication number: 20170063390
    Abstract: A digital-to-analog converter includes a first input end for reversely receiving a digital signal, a second input end for receiving multiple reference voltages arranged in a best order, wherein the best order is determined by reordering an initial order several times, multiple first switches coupled to each other stage by stage like a tree for selecting one of the reference voltages to be a first selection result, multiple second switches coupled in series for selecting one of the reference voltages to be a second selection result.
    Type: Application
    Filed: May 16, 2016
    Publication date: March 2, 2017
    Inventors: Yan-Gang Chen, Chia-Chi Cheng
  • Publication number: 20160189660
    Abstract: A power supplying module for an electronic device with a display function includes a first power supplying unit, for charging an output end according to a first clock signal, wherein the output end is coupled to a driving module of the electronic device; and a clock generating unit, for adjusting the first clock signal when an event occurs to make the first power supplying unit charge the output end when the event occurs.
    Type: Application
    Filed: November 19, 2015
    Publication date: June 30, 2016
    Inventor: Chia-Chi Cheng
  • Patent number: 8870600
    Abstract: A connector includes at least one first contact and at least one second contact. Each of the at least one first contact and the at least one second contact includes a tail with a leg extending therefrom and an arm with a contact section arranged to electrically couple with a corresponding contact when the connector is mated to an electrical device or another connector. The leg of each of the at least one first contact is offset with respect to the leg of each of the at least one second contact.
    Type: Grant
    Filed: January 30, 2013
    Date of Patent: October 28, 2014
    Assignee: Samtec, Inc.
    Inventors: Feng-Nan Wu, Chia-Chi Cheng
  • Publication number: 20140213124
    Abstract: A connector includes at least one first contact and at least one second contact. Each of the at least one first contact and the at least one second contact includes a tail with a leg extending therefrom and an arm with a contact section arranged to electrically couple with a corresponding contact when the connector is mated to an electrical device or another connector. The leg of each of the at least one first contact is offset with respect to the leg of each of the at least one second contact.
    Type: Application
    Filed: January 30, 2013
    Publication date: July 31, 2014
    Applicant: SAMTEC, INC.
    Inventors: Feng-Nan WU, Chia-Chi CHENG
  • Patent number: 7481667
    Abstract: An electrical connector has a body, two fasteners and multiple terminals. The body has two lugs formed on two upper ends of the body and two holes defined in two lower ends of the body. Each fastener has two hooks formed on two lower ends of the fastener and engaging the holes of the body, and two notches defined in two upper ends of the fastener and engaging the lugs of the body. Hence, the fasteners respectively engage the body securely. Furthermore, the fasteners are easily mounted onto the body.
    Type: Grant
    Filed: July 27, 2006
    Date of Patent: January 27, 2009
    Assignee: Suyin Corporation
    Inventor: Chia-Chi Cheng
  • Publication number: 20080026624
    Abstract: An electrical connector has a body, two fasteners and multiple terminals. The body has two lugs formed on two upper ends of the body and two holes defined in two lower ends of the body. Each fastener has two hooks formed on two lower ends of the fastener and engaging the holes of the body, and two notches defined in two upper ends of the fastener and engaging the lugs of the body. Hence, the fasteners respectively engage the body securely. Furthermore, the fasteners are easily mounted onto the body.
    Type: Application
    Filed: July 27, 2006
    Publication date: January 31, 2008
    Inventor: Chia-Chi Cheng
  • Patent number: D1053815
    Type: Grant
    Filed: September 30, 2022
    Date of Patent: December 10, 2024
    Assignee: SAMTEC, INC.
    Inventor: Chia Chi Cheng