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:
Feb. 16, 2021
Filed:
Dec. 05, 2018
Amazon Technologies, Inc., Seattle, WA (US);
Douglas Mark Chin, Windham, NH (US);
AMAZON TECHNOLOGIES, INC., Seattle, WA (US);
Abstract
Techniques are generally described for motion detection by supplying voltage pulses to a radio frequency (RF) circuit. In some examples, an RF motion detection circuit may output a first RF signal based at least in part on a first voltage pulse. In some further examples, the RF motion detection circuit may receive a second RF signal, the second RF signal being the first RF signal reflected from an environment external to the RF motion detection circuit. In some further examples, the first RF signal and the second RF signal may be mixed to generate a difference component signal. A first output voltage representing the difference component signal may be generated. In some examples, the first output voltage may be used to detect motion in the environment.