Patents by Inventor Chang Chu

Chang Chu 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: 20250093248
    Abstract: There is provided a smoke detector including a substrate, a light source and a light sensor. The light source and the light sensor are arranged adjacently on the substrate. The substrate is arranged with an asymmetric structure to cause an illumination region of the light source to deviate toward the light sensor thereby increasing a ratio of light intensity reflected by smoke with respect to reference light intensity.
    Type: Application
    Filed: December 6, 2024
    Publication date: March 20, 2025
    Inventors: Yen-Chang Chu, Cheng-Nan Tsai, Chih-Ming Sun
  • Publication number: 20250067667
    Abstract: There is provided an optical machine of a smoke detector including a substrate, a light source, a light sensor and a light blocking member. The light source and the light sensor are arranged on the substrate in a first direction. The light blocking member is arranged upon the light source and blocks a part of an emission angle of the light source in the first direction far away from the light sensor.
    Type: Application
    Filed: November 15, 2024
    Publication date: February 27, 2025
    Inventors: CHENG-NAN TSAI, Yen-Chang Chu, Chih-Ming Sun, Chi-Chih Shen, Kuo-Hsiung Li
  • Publication number: 20250055184
    Abstract: Some implementations are directed to a wireless receiver. In some implementations, the wireless receiver may include a receiver body encompassing one or more antenna elements, a cover removably coupled to the receiver body, and a mounting bracket removably coupled to the receiver body. In some implementations, at least one of the one or more antenna elements, the cover, or the mounting bracket is movable with respect to the receiver body in order to align the wireless receiver with a signal path.
    Type: Application
    Filed: August 7, 2023
    Publication date: February 13, 2025
    Applicant: Verizon Patent and Licensing Inc.
    Inventors: Robert STEWART, Amrit Bamzai, Andrew Nicholas Toth, Jonathan Simmons, Hyunno Yun, Caleb Jones, Reid Schlegel, James Lanzilotta, Anthony Camarda, Ming Hung Hung, Po Chang Chu, Ying Chih Liu, YuanYu Chen, Yi Chieh Lin
  • Patent number: 12203838
    Abstract: There is provided a smoke detector including a substrate, a light source and a light sensor. The light source and the light sensor are arranged adjacently on the substrate. The substrate is arranged with an asymmetric structure to cause an illumination region of the light source to deviate toward the light sensor thereby increasing a ratio of light intensity reflected by smoke with respect to reference light intensity.
    Type: Grant
    Filed: January 11, 2024
    Date of Patent: January 21, 2025
    Assignee: PIXART IMAGING INC.
    Inventors: Yen-Chang Chu, Cheng-Nan Tsai, Chih-Ming Sun
  • Patent number: 12188865
    Abstract: There is provided an optical machine of a smoke detector including a substrate, a light source, a light sensor and a light blocking member. The light source and the light sensor are arranged on the substrate in a first direction. The light blocking member is arranged upon the light source and blocks a part of an emission angle of the light source in the first direction far away from the light sensor.
    Type: Grant
    Filed: April 15, 2022
    Date of Patent: January 7, 2025
    Assignee: PIXART IMAGING INC.
    Inventors: Cheng-Nan Tsai, Yen-Chang Chu, Chih-Ming Sun, Chi-Chih Shen, Kuo-Hsiung Li
  • Publication number: 20250006955
    Abstract: The present disclosure relates to a fuel supply control device for an electrochemical cell capable of uniformly distributing fuel supplied to the electrochemical cell and supplying the same. The device includes: a separator disposed on one side of an electrochemical cell, and having a fuel inlet, a fuel outlet, and a plurality of fuel channels arranged between the fuel inlet and the fuel outlet; and a fuel supply control panel stacked between the separator and the electrochemical cell, and having a plurality of slits arranged in a longitudinal direction of the fuel channel. A channel width of the fuel channel may be changed in the longitudinal direction of the fuel channel.
    Type: Application
    Filed: November 7, 2023
    Publication date: January 2, 2025
    Inventors: In Chang Chu, Jong Sup Hong, Jang Hyun Lim
  • Publication number: 20240404384
    Abstract: There is provided a smoke detector including a first light source, a second light source surface, a light sensor and a processor. The light sensor receives reflected light when the first light source and the second light source emit light, and generates a first detection signal corresponding to light emission of the first light source and a second detection signal corresponding to light emission of the second light source. The processor distinguishes smoke and floating particles according to a similarity between the first detection signal and the second detection signal.
    Type: Application
    Filed: August 13, 2024
    Publication date: December 5, 2024
    Inventors: CHENG-NAN TSAI, GUO-ZHEN WANG, CHING-KUN CHEN, YEN-CHANG CHU, CHIH-MING SUN
  • Publication number: 20240404877
    Abstract: In a method of manufacturing a semiconductor device, a first interlayer dielectric (ILD) layer is formed over a substrate, a chemical mechanical polishing (CMP) stop layer is formed over the first ILD layer, a trench is formed by patterning the CMP stop layer and the first ILD layer, a metal layer is formed over the CMP stop layer and in the trench, a sacrificial layer is formed over the metal layer, a CMP operation is performed on the sacrificial layer and the metal layer to remove a portion of the metal layer over the CMP stop layer, and a remaining portion of the sacrificial layer over the trench is removed.
    Type: Application
    Filed: July 25, 2024
    Publication date: December 5, 2024
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Tsai-Ming HUANG, Wei-Chieh HUANG, Hsun-Chung KUANG, Yen-Chang CHU, Cheng-Che CHUNG, Chin-Wei LIANG, Ching-Sen KUO, Jieh-Jang CHEN, Feng-Jia SHIU, Sheng-Chau CHEN
  • Patent number: 12148279
    Abstract: A smoke detector includes a substrate, an optical detection module, a base and a top cover. The substrate has a ring shape region surrounding a central detection region, and a first block structure of the central detection region is protruded from the substrate and higher than an upper surface of the ring shape region. The optical detection module is disposed inside the central detection region. The base is disposed on the substrate and around the optical detection module. The base has a second block structure. The top cover is connected to the base. A lateral wall of the top cover is partly overlapped with the second block structure to form a guiding channel. The optical detection module analyzes variation of scattering parameters resulted from gaseous matter entering the top cover through the guiding channel for determining concentration of the gaseous matter.
    Type: Grant
    Filed: August 9, 2022
    Date of Patent: November 19, 2024
    Assignee: PixArt Imaging Inc.
    Inventors: Cheng-Nan Tsai, Yen-Chang Chu, Chih-Ming Sun
  • Patent number: 12106649
    Abstract: There is provided a smoke detector including a first light source, a second light source surface, a light sensor and a processor. The light sensor receives reflected light when the first light source and the second light source emit light, and generates a first detection signal corresponding to light emission of the first light source and a second detection signal corresponding to light emission of the second light source. The processor distinguishes smoke and floating particles according to a similarity between the first detection signal and the second detection signal.
    Type: Grant
    Filed: November 15, 2023
    Date of Patent: October 1, 2024
    Assignee: PIXART IMAGING INC.
    Inventors: Cheng-Nan Tsai, Guo-Zhen Wang, Ching-Kun Chen, Yen-Chang Chu, Chih-Ming Sun
  • Patent number: 12046114
    Abstract: A smoke detection device includes a housing, a smoke collector, an optical detector and a cover plate. The housing has a piercing hole. The smoker collector has a smoke hole, and position of the smoke hole is close to position of the piercing hole. The optical detector is disposed inside the smoke collector and adapted to detect gaseous concentration inside the smoke collector. The cover plate is disposed between the housing and the smoke collector, and used to set a channel from the piercing hole to the smoke hole, so that gaseous matter flows from outside the smoke detection device into the smoke collector through the piercing hole and the smoke hole.
    Type: Grant
    Filed: May 11, 2022
    Date of Patent: July 23, 2024
    Assignee: PixArt Imaging Inc.
    Inventors: Yen-Chang Chu, Yen-Po Chen, Chih-Ming Sun, Cheng-Nan Tsai, Ching-Kun Chen
  • Publication number: 20240207353
    Abstract: Use of a compound represented by formula (I) or a stereoisomer, hydrate, metabolite, solvate, pharmaceutically acceptable salt, eutectic, or a composition thereof in preparation of a drug for treating pruritus. Also provided is a method for treating pruritus, the method comprises administering an effective dose of the compound represented by formula (I) or the stereoisomer, hydrate, metabolite, solvate, pharmaceutically acceptable salt, eutectic, or a composition thereof.
    Type: Application
    Filed: April 11, 2022
    Publication date: June 27, 2024
    Inventors: Yongrui WANG, Zizhen ZHANG, Chunnan ZHANG, Xue GU, Chang CHU, Xiaoli GOU
  • Patent number: 12016168
    Abstract: An electromagnetic wave-absorbing web for controlling interference by electromagnetic wave at a low frequency band generated from various electric and electronic parts and for securing strength without added material and achieving lightweight is provided. The web is manufactured of a mixture solution in the form of a fabric having a mesh structure, wherein the mixture solution is made by mixing a conductive nanomaterial, a magnetic nanofiller, a binder, and a solvent.
    Type: Grant
    Filed: August 25, 2014
    Date of Patent: June 18, 2024
    Assignee: Hyundai Motor Company
    Inventors: In Chang Chu, Jin Woo Kwak
  • Publication number: 20240194903
    Abstract: A fuel supply control apparatus of an electrochemical cell uniformly distributes fuel supplied to the electrochemical cell. The fuel supply control apparatus includes a separator configured to have a fuel inlet, a fuel outlet, and a plurality of fuel channels arranged between the fuel inlet and the fuel outlet, and a fuel supply control plate stacked between the separator and a solid oxide cell and configured to uniformly distribute and supply fuel, flowing into the fuel channels, to the solid oxide cell, and the fuel supply control plate has a plurality of slits configured to extend in a direction orthogonal to the fuel channels and to be arranged in a length direction of the fuel channels.
    Type: Application
    Filed: May 16, 2023
    Publication date: June 13, 2024
    Inventors: In Chang Chu, Jong Sup Hong, Jang Hyun Lim, Woo Seok Lee, Joon Hoon Cho
  • Publication number: 20240159642
    Abstract: A smoke detector with an anti-insect function includes a substrate, an optical detection module, a top cover, a base and a perforated plate. The substrate has a ring shape region surrounding a central detection region, and a first block structure of the central detection region is protruded from the substrate and higher than an upper surface of the ring shape region. The optical detection module is disposed inside the central detection region. The top cover has a lateral wall. The base is disposed on the substrate and connected to the top cover to cover the optical detection module. The base has a second block structure partly overlapped with the lateral wall to form a guiding channel. The perforated plate is disposed between the lateral wall and the second block structure to prevent an insect from moving into the top cover through the guiding channel.
    Type: Application
    Filed: January 25, 2024
    Publication date: May 16, 2024
    Applicant: PixArt Imaging Inc.
    Inventors: Yen-Chang Chu, Cheng-Nan Tsai, Chih-Ming Sun, Zhi-Hao Wu, Hung-Yu Lai
  • Publication number: 20240142361
    Abstract: There is provided a smoke detector including a substrate, a light source and a light sensor. The light source and the light sensor are arranged adjacently on the substrate. The substrate is arranged with an asymmetric structure to cause an illumination region of the light source to deviate toward the light sensor thereby increasing a ratio of light intensity reflected by smoke with respect to reference light intensity.
    Type: Application
    Filed: January 11, 2024
    Publication date: May 2, 2024
    Inventors: YEN-CHANG CHU, CHENG-NAN TSAI, CHIH-MING SUN
  • Patent number: 11974071
    Abstract: The present invention provides a control method of a processor, wherein the control method comprises the steps of: transmitting image data of a first frame to an integrated circuit, wherein the first frame corresponds to a first frame rate; determining a second frame rate of a second frame next to the first frame; determining if a difference between the second frame rate and the first frame rate belongs to a large scale frame rate adjustment or a small scale frame rate adjustment; if the difference between the second frame rate and the first frame rate belongs to the large scale frame rate adjustment, using a first mode to transmit image data of the second frame; and if the difference between the second frame rate and the first frame rate belongs to the small scale frame rate adjustment, using a second mode to transmit image data of the second frame.
    Type: Grant
    Filed: August 21, 2022
    Date of Patent: April 30, 2024
    Assignee: MEDIATEK INC.
    Inventors: Kang-Yi Fan, Chin-Wen Liang, Chang-Chu Liu, Sheng-Hsiang Chang, You-Min Yeh
  • Publication number: 20240121920
    Abstract: A terminal device and a terminal device installation method are provided. The terminal device includes a machine body, a detachable cover with two side walls, and at least two coupling mechanisms arranged symmetrically. The machine body includes a front board, a rear board opposite to the front board, and two side boards connected between the front board and the rear board. Each coupling mechanism includes a coupling portion located at one side wall, a front track and a rear track respectively having a front opening and a rear opening opposite to the front opening and both located at one side board. As each coupling portion is coupled to each front track, the cover is assembled with the machine body and covers the front board, and as each coupling portion is coupled with each rear track, the cover is assembled to the machine body and covers the rear board.
    Type: Application
    Filed: October 5, 2023
    Publication date: April 11, 2024
    Inventors: Yuan-Yu CHEN, Ming-Hung HUNG, Po-Chang CHU
  • Patent number: 11953877
    Abstract: Manufacturing of a shoe or a portion of a shoe is enhanced by executing various shoe-manufacturing processes in an automated fashion. For example, information describing a shoe part may be determined, such as an identification, an orientation, a color, a surface topography, an alignment, a size, etc. Based on the information describing the shoe part, automated shoe-manufacturing apparatuses may be instructed to apply various shoe-manufacturing processes to the shoe part, such as a pickup and placement of the shoe part with a pickup tool.
    Type: Grant
    Filed: October 20, 2022
    Date of Patent: April 9, 2024
    Assignee: NILE, Inc.
    Inventors: Dragan Jurkovic, Patrick Conall Regan, Chih-Chi Chang, Chang-chu Liao, Ming-Feng Jean, Kuo-Hung Lee, Yen-Hsi Liu, Hung-Yu Wu
  • Publication number: 20240078887
    Abstract: There is provided a smoke detector including a first light source, a second light source surface, a light sensor and a processor. The light sensor receives reflected light when the first light source and the second light source emit light, and generates a first detection signal corresponding to light emission of the first light source and a second detection signal corresponding to light emission of the second light source. The processor distinguishes smoke and floating particles according to a similarity between the first detection signal and the second detection signal.
    Type: Application
    Filed: November 15, 2023
    Publication date: March 7, 2024
    Inventors: CHENG-NAN TSAI, GUO-ZHEN WANG, CHING-KUN CHEN, YEN-CHANG CHU, CHIH-MING SUN