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:
Dec. 08, 2015
Filed:
Feb. 13, 2012
Tadashi Murakami, Hirakata, JP;
Shigeo Gotou, Yao, JP;
Tadashi Murakami, Hirakata, JP;
Shigeo Gotou, Yao, JP;
Abstract
A doppler sensor includes a doppler signal generation unit and a determining unit. The doppler signal generation unit serves to transmit an electric wave to a detection range and receiving electric waves from a detection range, and generating a doppler signal based on a transmission signal used in transmitting the electric wave and a reception signal obtained from the received electric waves, and the determining unit serves to determine whether or not there exists a human body in the detection range through a spectrum analysis using a peak frequency, which is a frequency having the highest intensity in a difference spectrum obtained by subtracting a background spectrum from the spectrum of the doppler signal.