Patents by Inventor Fu-Chuan Chang

Fu-Chuan 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).

  • Publication number: 20200128910
    Abstract: A hidden drainage system for shoes, configured on the outsole of a shoe, in which the two sides of the outsole are provided with a plurality of curved sections that are curved inward; the top of the outsole is provided with a plurality of transverse drainage troughs and several longitudinal drainage troughs; each of the transverse drainage troughs extends along the direction of the width of the outsole, and both ends are communicated with each of the curved sections, so that the two ends of each of the transverse drainage troughs will not be exposed on the side face of the outsole; the longitudinal drainage troughs extend along the length of the outsole and are communicated with each of the transverse drainage troughs; thus, water entering the shoe will flow into each of the transverse and longitudinal drainage troughs, and be discharged from each of the transverse drainage troughs.
    Type: Application
    Filed: October 26, 2018
    Publication date: April 30, 2020
    Inventor: FU-CHUAN CHANG
  • Patent number: 10637354
    Abstract: A multi-channel power system and a method of controlling a phase shift of the same are provided. The multi-channel power system includes one or more first DC to DC converters and one or more second DC to DC converters. The first DC-DC converter outputs a first pulse width modulated signal having a first default frequency. When the first DC-DC converter receives a reference clock signal, it outputs the first pulse width modulated signal having a frequency that is the same as that of the reference clock signal. The first DC-DC converter outputs a phase-shifted clock signal having a preset phase shift relative to the first pulse width modulated signal. The second DC-DC converter outputs a second pulse width modulated signal having a second default frequency. The second DC-DC converter outputs the second pulse width modulated signal having the preset phase shift according to the phase shift clock signal.
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: April 28, 2020
    Assignee: ANPEC ELECTRONICS CORPORATION
    Inventors: Tse-Hsu Wu, Yun-Chiang Chang, Fu-Chuan Chen
  • Patent number: 10567314
    Abstract: This invention provides programmable intelligent agents that facilitate and manage voice or video conversations between human users and chatbots over the Internet or the Public Switched Telephone Network. Functions of said intelligent agents include providing the communication connectivity, coordinating the human-chatbot conversation, reacting and responding to the human user's conversational behavior, and in certain applications, sending controlling signals to peripheral devices according to intents of the conversation, or receiving data from peripheral sensors as references to alter the course of the conversation. Furthermore, a said intelligent agent can serve as a user interface that enables human users in the vicinity of the intelligent agent to engage in an interactive three-way conversation with a chatbot and remote human users.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: February 18, 2020
    Assignee: D8AI Inc.
    Inventors: Fu-Chieh Chang, Yuh-Bin Tsai, Jeng-Chuan Chang, You-Zheng Yin, Pei-Hua Chen, Richard Li-Cheng Sheng, Hui Hsiung
  • Publication number: 20200006469
    Abstract: The present disclosure relates to a MIM (metal-insulator-metal) capacitor having a top electrode overlying a substrate. A passivation layer overlies the top electrode. The passivation layer has a step region that continuously contacts and extends from a top surface of the top electrode to sidewalls of the top electrode. A metal frame overlies the passivation layer. The metal frame continuously contacts and extends from a top surface of the passivation layer to upper sidewalls of the passivation layer in the step region. The metal frame has a protrusion that extends through the passivation layer and contacts the top surface of the top electrode.
    Type: Application
    Filed: May 13, 2019
    Publication date: January 2, 2020
    Inventors: Chi-Yuan Shih, Kai-Fung Chang, Shih-Fen Huang, Wen-Chuan Tai, Yi-Chuan Teng, Yi Heng Tsai, You-Ru Lin, Yen-Wen Chen, Anderson Lin, Fu-Chun Huang, Chun-Ren Cheng, Ivan Hua-Shu Wu, Fan Hu, Ching-Hui Lin, Yan-Jie Liao
  • Patent number: 10340914
    Abstract: A power converting device and a method thereof are provided. The power converting device includes a filter circuit, a zero-crossing comparison circuit, a counting circuit, a logic circuit, an oscillation circuit, and a control circuit. The zero-crossing comparison circuit outputs a zero-crossing signal when an inductor current is equal to a zero current. The counting circuit counts a time interval between two consecutive time points at which the inductor currents are equal to the zero current in a low power mode. When the logic circuit determines that the time interval is greater than a first time threshold, the control circuit transmits a first oscillating signal to the filter circuit from the oscillation circuit; otherwise, it outputs a second oscillating signal; it outputs a pulse-skipping mode signal when the interval time is less than a second time threshold.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: July 2, 2019
    Assignee: ANPEC ELECTRONICS CORPORATION
    Inventors: Tse-Hsu Wu, Yun-Chiang Chang, Fu-Chuan Chen
  • Patent number: 7409783
    Abstract: This invention relates to an improved spike installed in a sole of a shoe and consists of a receptacle having a base and several connecting seats integrated around the edge of the base in one piece flexibly moving in proportion to the base. Several spikes are installed unto individual connecting seats extruding the sole. Accordingly, each connecting seat and partial spikes are wrapped up by the flexible sole. When spikes receive an external force causing connecting seats to deviate slightly and simultaneously, the elasticity of the sole material and elastic recovery of each connecting seat are used ingeniously to create proper grip.
    Type: Grant
    Filed: November 14, 2005
    Date of Patent: August 12, 2008
    Assignee: Vanbestco Ltd.
    Inventor: Fu-Chuan Chang
  • Publication number: 20070107262
    Abstract: This invention relates to an improved spike installed in a sole of a shoe and consists of a receptacle having a base and several connecting seats integrated around the edge of the base in one piece flexibly moving in proportion to the base. Several spikes are installed unto individual connecting seats extruding the sole. Accordingly, each connecting seat and partial spikes are wrapped up by the flexible sole. When spikes receive an external force causing connecting seats to deviate slightly and simultaneously, the elasticity of the sole material and elastic recovery of each connecting seat are used ingeniously to create proper grip.
    Type: Application
    Filed: November 14, 2005
    Publication date: May 17, 2007
    Inventor: Fu-Chuan Chang
  • Patent number: 5765331
    Abstract: An improved light weight wall structure for buildings is disclosed. It contains: (a) a skeletal frame having a plurality of posts for quick assembly; (b) a plurality of gusset sub-panels and base board sub-panels disposed in overlapping and alternate relationship fastened to the skeletal frame; (c) connection means provided in each junction between adjacent sub-panels for securely adjoining the sub-panels together; (d) a slurry retention device disposed on at least one major surface of a selected number of sub-panels; (e) a wall facing layer applied to the sub-panels in the form of a setable slurry, so as to increase the strength of the wall structure; and (f) a protection plate mounted on a portion of the wall structure that is most likely to be damaged.
    Type: Grant
    Filed: January 21, 1997
    Date of Patent: June 16, 1998
    Inventor: Fu-Chuan Chang
  • Patent number: 5595035
    Abstract: A built-up post for use in a building is disclosed. It includes: (a) an upper post resembling a long column, the upper post having a first end to be fixedly connected to a steel girder or a ceiling of a building, and a second end having a longitudinal hole, the longitudinal hole having an inner wall with an internal thread; (b) a lower post resembling a long column, one end to be fixedly connected to a steel girder or a floor of a building, the other end having a longitudinal hole, the inner wall of the longitudinal hole having an internal thread; and (c) an intermediate post resembling a long column, each end thereof having a long thread for screwing into the longitudinal holes of the upper and lower posts. The upper post, intermediate post and lower post are joined in alignment with each other, with the long threads of the intermediate post being screwed into the longitudinal holes of the upper and lower posts, respectively.
    Type: Grant
    Filed: May 20, 1994
    Date of Patent: January 21, 1997
    Inventor: Fu-Chuan Chang
  • Patent number: 5177918
    Abstract: A shock-absorption wall structure comprising a framework of elastic beams having a light steel frame covered with a certain number of base plates is disclosed. The base plates have at least two or more rows of parallel sheets in the upper/lower sides or left/right sides and a plurality of inclined sheets and/or rolling sheets to make paving slurry even and quick, and enable the slurry to evince a strong adhesive force. Each elastic beam includes a pair of truss bodies interconnected by number of long bolts and springs with each long bolt penetrating through a respective pair of truss bodies. The springs are accommodated within the truss body and then a cover plate is attached on one side of the elastic beam. By this arrangement, the internal stress of the wall arising from an earthquake or working vibration can be absorbed by each spring to prevent the wall from cracking or collapsing.
    Type: Grant
    Filed: August 21, 1991
    Date of Patent: January 12, 1993
    Inventor: Fu-Chuan Chang