Patents by Inventor Chien-Jung LI

Chien-Jung LI 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: 9964977
    Abstract: A device is disclosed that includes a delay circuit, a detection circuit, and a bias circuit. The delay circuit is configured to generate an oscillating signal in response to a reference signal, a first bias voltage, and a second bias voltage. The detection circuit is configured to compare the oscillating signal with the reference signal, to generate a detect signal. The bias circuit is configured to adjust the first bias voltage and the second bias voltage according to the detect signal and a reference voltage.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: May 8, 2018
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Chien-Chung Tseng, Lipen Yuan, Jhih-Jie Shao, Chien-Jung Li
  • Publication number: 20170123444
    Abstract: A device is disclosed that includes a delay circuit, a detection circuit, and a bias circuit. The delay circuit is configured to generate an oscillating signal in response to a reference signal, a first bias voltage, and a second bias voltage. The detection circuit is configured to compare the oscillating signal with the reference signal, to generate a detect signal. The bias circuit is configured to adjust the first bias voltage and the second bias voltage according to the detect signal and a reference voltage.
    Type: Application
    Filed: October 30, 2015
    Publication date: May 4, 2017
    Inventors: Chien-Chung TSENG, Lipen YUAN, Jhih-Jie SHAO, Chien-Jung LI
  • Patent number: 8648611
    Abstract: An RF sensing circuit with a voltage-controlled oscillator comprises a low noise amplifier (LNA), a voltage-controlled oscillator (VCO), a frequency demodulating unit, a bandpass filter (BPF) and a digital signal processing unit. The VCO has an injection signal input port and a voltage input port, wherein the injection signal input port is electrically connected with an output of the LNA. The frequency demodulating unit is electrically connected with an output of the VCO and the BPF is electrically connected with an output of the frequency demodulating unit. The digital signal processing unit is electrically connected with an output of the BPF and the voltage input port of the VCO.
    Type: Grant
    Filed: April 9, 2010
    Date of Patent: February 11, 2014
    Assignees: Industrial Technology Research Institute, National Sun Yat-Sen University
    Inventors: Tzyy-Sheng Horng, Chien-Jung Li, Kang-Chun Peng, Fu-Kang Wang
  • Publication number: 20100283513
    Abstract: An RF sensing circuit with a voltage-controlled oscillator comprises a low noise amplifier (LNA), a voltage-controlled oscillator (VCO), a frequency demodulating unit, a bandpass filter (BPF) and a digital signal processing unit. The VCO has an injection signal input port and a voltage input port, wherein the injection signal input port is electrically connected with an output of the LNA. The frequency demodulating unit is electrically connected with an output of the VCO and the BPF is electrically connected with an output of the frequency demodulating unit. The digital signal processing unit is electrically connected with an output of the BPF and the voltage input port of the VCO.
    Type: Application
    Filed: April 9, 2010
    Publication date: November 11, 2010
    Applicants: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, NATIONAL SUN YAT-SEN UNIVERSITY
    Inventors: Tzyy-Sheng HORNG, Chien-Jung LI, Kang-Chun PENG, Fu-Kang WANG