Patents by Inventor Cheng-Chih Chang

Cheng-Chih 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: 11968869
    Abstract: An electronic device includes a flexible substrate and a conductive wire. The conductive wire is disposed on the flexible substrate and includes a metal portion and a plurality of openings disposed in the metal portion. The metal portion includes a plurality of extending portions and a plurality of joint portions, and each of the openings is surrounded by two of the plurality of extending portions and two of the plurality of joint portions. A ratio of a sum of widths of the plurality of extending portions to a sum of widths of the plurality of joint portions is in a range from 0.8 to 1.2.
    Type: Grant
    Filed: April 28, 2022
    Date of Patent: April 23, 2024
    Assignee: InnoLux Corporation
    Inventors: Ya-Wen Lin, Chien-Chih Chen, Yen-Hsi Tu, Cheng-Wei Chang, Shu-Hui Yang
  • Patent number: 11943643
    Abstract: An access point (AP) and a station (STA) communicate with each other, with the AP indicating to the STA either or both of a preamble detection (PD) channel and a signaling (SIG) content channel and with the STA being initially monitoring a primary frequency segment of a plurality of frequency segments in an operating bandwidth of the AP. A downlink (DL) or triggered uplink (UL) communication is performed between the AP and the STA during a transmission opportunity (TXOP) such that: (i) during the TXOP, the STA monitors a preamble on the PD channel and decodes a SIG content on the SIG content channel; and (ii) after an end of the TXOP, the STA switches to the primary frequency segment.
    Type: Grant
    Filed: July 21, 2021
    Date of Patent: March 26, 2024
    Assignee: MediaTek Singapore Pte. Ltd.
    Inventors: Kai Ying Lu, Yongho Seok, Hung-Tao Hsieh, Cheng-Yi Chang, James Chih-Shi Yee, Jianhan Liu, Po-Yuen Cheng
  • Patent number: 11932207
    Abstract: A universal wiper base assembly structure includes a fastening base, a rear base, a combination base, and an outer cover. The fastening base includes a main body and a decorative cover. The main body has a coupling hole, an insertion slot, a protruding platform, a positioning protrusion, a first shaft hole, two limiting arc surfaces, and multiple engagement grooves. The decorative cover has a fastening slot. The rear base includes two contact blocks, a top abutting block, and two hooks. The combination base includes two side plates, a connection plate, an open groove and a second shaft hole. The outer cover includes a fastening block, an opening, and a third shaft hole. Accordingly, a variety of wiper driving arms may be positioned to the universal wiper base assembly structure, so as to improve the convenience in assembling and reduce an overall cost.
    Type: Grant
    Filed: March 21, 2023
    Date of Patent: March 19, 2024
    Assignee: DANYANG UPC AUTO PARTS CO., LTD.
    Inventors: Che-Wei Chang, Cheng-Kai Yang, Chuan-Chih Chang
  • Publication number: 20220137723
    Abstract: A force sensor device includes a first structure component, an optical sensor, and a flexible structure component. The optical sensor is disposed on the first structure component. The flexible structure component has a convex portion, and the flexible structure component is assembled with the first structure component to form a chamber in which the optical sensor is disposed. The optical sensor senses light ray transmitted from the flexible structure component to at least one pixel unit to generate at least one differential image and then detects a user's control force applied for the flexible structure component according to the at least one differential image. Differential image is temporal differential image, generated from successive pixel values of a single pixel unit, or is spatial differential image, generated based on temporal differential images of at least two neighboring pixel units.
    Type: Application
    Filed: January 16, 2022
    Publication date: May 5, 2022
    Applicant: PixArt Imaging Inc.
    Inventors: Tien-Chung Yang, Yi-Cheng Chiu, Cheng-Chih Chang, Jui-Te Chiu, Yi-Chung Chen
  • Patent number: 7528753
    Abstract: A coder-decoder simultaneously processing a plurality of first analog signals with only one analog-to-digital converter is provided. In an exemplary embodiment, the coder-decoder comprises a multiple access modulator, the analog-to-digital converter, and a multiple access demodulator. The multiple access modulator combines the first analog signals according to a multiple access algorithm to obtain a first multiple access signal comprising the first analog signals. The analog-to-digital converter then converts the first multiple access signal from analog to digital to obtain a second multiple access signal. The multiple access demodulator then separates the second multiple access signal according to the multiple access algorithm to obtain a plurality of first digital signals respectively corresponding to the first analog signals.
    Type: Grant
    Filed: July 10, 2007
    Date of Patent: May 5, 2009
    Assignee: VIA Technologies, Inc.
    Inventor: Cheng-Chih Chang
  • Publication number: 20080062028
    Abstract: The invention provides a coder-decoder simultaneously processing a plurality of first analog signals with only one analog-to-digital converter. In an exemplary embodiment, the coder-decoder comprises a multiple access modulator, the analog-to-digital converter, and a multiple access demodulator. The multiple access modulator modulates the first analog signals according to a multiple access method to obtain a first multiple access signal comprising the first analog signals. The analog-to-digital converter then converts the first multiple access signal from analog to digital to obtain a second multiple access signal. The multiple access demodulator then demodulates the second multiple access signal according to the multiple access method to obtain a plurality of first digital signals respectively corresponding to the first analog signals.
    Type: Application
    Filed: July 10, 2007
    Publication date: March 13, 2008
    Applicant: VIA TECHNOLOGIES, INC.
    Inventor: Cheng-Chih Chang