Patents by Inventor HSIAO-CHI CHEN

HSIAO-CHI CHEN 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: 12088325
    Abstract: A filter system includes: a first mixer, converting an input signal into a first signal according to a reference frequency signal, wherein the reference frequency signal corresponding to a target frequency band; an analog-to-digital converter, coupled to the first mixer, converting the first signal into a first digital signal; a digital filter, coupled to the analog-to-digital converter, filtering the first digital signal according to a first frequency band and generating a second digital signal, wherein the first frequency band corresponding to the first signal; a digital-to-analog converter coupled to the digital filter, converting the second digital signal into a second signal; and a second mixer, coupled to the digital-to-analog converter, converting the second signal into an output signal according to the reference frequency signal, wherein the output signal corresponds to the input signal filtered by the target frequency band.
    Type: Grant
    Filed: November 11, 2022
    Date of Patent: September 10, 2024
    Assignees: Dynami Vision Ltd., Chung Yuan Christian University
    Inventors: Shih-Lun Chen, Tsun-Kuang Chi, Chien-Rung Huang, Hsiao-Chi Chen
  • Publication number: 20230208434
    Abstract: A filter system includes: a first mixer, converting an input signal into a first signal according to a reference frequency signal, wherein the reference frequency signal corresponding to a target frequency band; an analog-to-digital converter, coupled to the first mixer, converting the first signal into a first digital signal; a digital filter, coupled to the analog-to-digital converter, filtering the first digital signal according to a first frequency band and generating a second digital signal, wherein the first frequency band corresponding to the first signal; a digital-to-analog converter coupled to the digital filter, converting the second digital signal into a second signal; and a second mixer, coupled to the digital-to-analog converter, converting the second signal into an output signal according to the reference frequency signal, wherein the output signal corresponds to the input signal filtered by the target frequency band.
    Type: Application
    Filed: November 11, 2022
    Publication date: June 29, 2023
    Applicants: Dynami Vision Ltd., Chung Yuan Christian University
    Inventors: Shih-Lun Chen, Tsun-Kuang Chi, Chien-Rung Huang, Hsiao-Chi Chen
  • Publication number: 20160308625
    Abstract: The instant disclosure illustrates a wireless transmission device and a method for connecting a wireless transmission with a mobile communication device, the wireless transmission device includes a base unit, a control unit, a steering unit and an antenna unit. The control unit is arranged on the base unit. The steering unit is arranged on the base unit and is electrically connected to the control unit. The antenna unit is arranged on the steering unit and is electrically connected to the control unit. The control unit controls the direction of rotation of the steering unit according to a signal measurement value between the antenna unit and the mobile communication device for steering the antenna unit arranged on the steering unit.
    Type: Application
    Filed: June 28, 2016
    Publication date: October 20, 2016
    Inventor: HSIAO-CHI CHEN
  • Patent number: 9414308
    Abstract: This invention provides a method of a controlling wireless network device for network connectivity. The method includes the following steps, receiving a control signal from a mobile communication device; receiving multiple connection signals emitted by multiple base stations; measuring the signal strength of the connection signals emitted by the base stations to determine the communication signal having the strongest received signal strength indication; connecting to the base station emitted the communications signal with the strongest signal strength indication; connecting the mobile communication device to connect to the controlling wireless network device and establishing network connectivity between the mobile communication device to the base station emitted the communications signal with the strongest signal strength indication.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: August 9, 2016
    Inventor: Hsiao-Chi Chen
  • Publication number: 20150024769
    Abstract: This invention provides a method of a controlling wireless network device for network connectivity. The method includes the following steps, receiving a control signal from a mobile communication device; receiving multiple connection signals emitted by multiple base stations; measuring the signal strength of the connection signals emitted by the base stations to determine the communication signal having the strongest received signal strength indication; connecting to the base station emitted the communications signal with the strongest signal strength indication; connecting the mobile communication device to connect to the controlling wireless network device and establishing network connectivity between the mobile communication device to the base station emitted the communications signal with the strongest signal strength indication.
    Type: Application
    Filed: June 16, 2014
    Publication date: January 22, 2015
    Inventor: HSIAO-CHI CHEN