Patents by Inventor Rezki El Arif

Rezki El Arif 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).

  • Multiple-target vital sign detector and detection method using the same
    Patent number: 11835618
    Abstract: A multiple-target vital sign detector includes a self-injection-locked oscillator (SILO), a chirp up/down converter, a frequency demodulator and a multiple-target vital sign processor. The chirp up/down converter performs conversion from an oscillation signal generated by the SILO to a frequency-modulated continuous wave (FMCW) signal to detect an area and from a received FMCW signal reflected from the area to an injection signal, while the SILO is injected with the injection signal to enter a self-injection-locked state. The locations and vital signs of multiple subjects are extracted from the oscillation signal using the frequency demodulator and the multiple-target vital sign processor. The objective of using the SILO is to improve the sensitivity of the FMCW detection process so as to more effectively distinguish the vital signs of multiple subjects at different locations.
    Type: Grant
    Filed: October 7, 2020
    Date of Patent: December 5, 2023
    Assignee: NATIONAL SUN YAT-SEN UNIVERSITY
    Inventors: Tzyy-Sheng Horng, Fu-Kang Wang, Wei-Chih Su, Mu-Cyun Tang, Rezki El Arif
  • MULTIPLE-TARGET VITAL SIGN DETECTOR AND DETECTION METHOD USING THE SAME
    Publication number: 20210109208
    Abstract: A multiple-target vital sign detector includes a self-injection-locked oscillator (SILO), a chirp up/down converter, a frequency demodulator and a multiple-target vital sign processor. The chirp up/down converter performs conversion from an oscillation signal generated by the SILO to a frequency-modulated continuous wave (FMCW) signal to detect an area and from a received FMCW signal reflected from the area to an injection signal, while the SILO is injected with the injection signal to enter a self-injection-locked state. The locations and vital signs of multiple subjects are extracted from the oscillation signal using the frequency demodulator and the multiple-target vital sign processor. The objective of using the SILO is to improve the sensitivity of the FMCW detection process so as to more effectively distinguish the vital signs of multiple subjects at different locations.
    Type: Application
    Filed: October 7, 2020
    Publication date: April 15, 2021
    Inventors: Tzyy-Sheng Horng, Fu-Kang Wang, Wei-Chih Su, Mu-Cyun Tang, Rezki El Arif