Patents by Inventor Ke-Ning Pan

Ke-Ning Pan 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).

  • Method for detecting a heart rate
    Patent number: 10405802
    Abstract: A method for detecting a heart rate is disclosed and includes: providing a photodetector module, a motion detector and a Fast Fourier Transform (FFT) module; acquiring a first heart rate using the photodetector module and the FFT module; sampling at different time intervals and generating a frame using the motion detector and the FFT module, wherein the frame has a first plurality of peaks and a first plurality of indexes corresponding to the first plurality of peaks, and a plurality of sport intervals are defined by the first plurality of indexes; and acquiring a present heart rate by applying an interval tracking algorithm to the first heart rate and the plurality of sport intervals generated from the sampling at different time intervals.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: September 10, 2019
    Assignee: WELTREND SEMICONDUCTOR, INC.
    Inventors: Ke-Ning Pan, Shih-Tsung Kuo, Chi-Chung Ho
  • METHOD FOR DETECTING A HEART RATE
    Publication number: 20160317052
    Abstract: A method for detecting a heart rate is disclosed and includes: providing a photodetector module, a motion detector and a Fast Fourier Transform (FFT) module; acquiring a first heart rate using the photodetector module and the FFT module; sampling at different time intervals and generating a frame using the motion detector and the FFT module, wherein the frame has a first plurality of peaks and a first plurality of indexes corresponding to the first plurality of peaks, and a plurality of sport intervals are defined by the first plurality of indexes; and acquiring a present heart rate by applying an interval tracking algorithm to the first heart rate and the plurality of sport intervals generated from the sampling at different time intervals.
    Type: Application
    Filed: October 20, 2015
    Publication date: November 3, 2016
    Inventors: Ke-Ning Pan, Shih-Tsung Kuo, Chi-Chung Ho
  • Frequency calibration circuit for automatically calibrating frequency and method thereof
    Patent number: 8634506
    Abstract: Generate a series of digital data according to a pair of differential signals received from a low speed universal serial bus. Calibrate coarsely a frequency of an oscillator according to a width of an end-of-packet of the series of digital data. And calibrate finely the frequency of the oscillator according to a width of a SYNC pattern of the series of digital data.
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: January 21, 2014
    Assignee: Weltrend Semiconductor Inc.
    Inventors: Fu-Yuan Hsiao, Ke-Ning Pan
  • FREQUENCY CALIBRATION CIRCUIT FOR AUTOMATICALLY CALIBRATING FREQUENCY AND METHOD THEREOF
    Publication number: 20120002764
    Abstract: Generate a series of digital data according to a pair of differential signals received from a low speed universal serial bus. Calibrate coarsely a frequency of an oscillator according to a width of an end-of-packet of the series of digital data. And calibrate finely the frequency of the oscillator according to a width of a SYNC pattern of the series of digital data.
    Type: Application
    Filed: October 20, 2010
    Publication date: January 5, 2012
    Inventors: Fu-Yuan Hsiao, Ke-Ning Pan