The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 23, 2023
Filed:
Jun. 26, 2019
Richwave Technology Corp., Taipei, TW;
Tse-Peng Chen, Taipei, TW;
RichWave Technology Corp., Taipei, TW;
Abstract
A method of microwave motion detection with adaptive frequency control, for a microwave motion sensor, comprises suppressing output of the first detecting signal generated with a first frequency, determining whether a first interference signal is detected in the first frequency during the suppressing, responsive to that the first interference signal is detected in the first frequency, generating a second detecting signal with a second frequency, which is different from the first frequency, and suppressing output of the second detecting signal, determining whether a second interference signal is detected in the second frequency during the suppressing, and responsive to that the second interference signal is not detected in the second frequency, outputting the second detecting signal for motion detection. The microwave motion sensor is operated in a normal mode or in a detection mode according to the first detecting signal, a reflected signal, the second detecting signal and an interference signal.