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:
Nov. 29, 2005
Filed:
Jul. 24, 2003
Applicants:
Choichiro Tsuchihashi, Kobe, JP;
Yoshihiro Sasaki, Kobe, JP;
Hideki Shiratori, Sapporo, JP;
Inventors:
Assignees:
Fujitsu Ten Limited, Kobe, JP;
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R027/04 ; G01S013/00 ;
U.S. Cl.
CPC ...
Abstract
A moving object detection apparatus in which an oscillating output, from a gate of an FET functioning as an oscillator, is coupled via a resonant line to a transmit-receive antenna, a wave, transmitted from the antenna and returned as a reflected wave, is received at the gate, and a beat signal component output from the gate, due to a phase difference between the transmitted wave and the reflected wave, is taken as a moving object detection signal.