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:
Jul. 10, 2012
Filed:
Dec. 16, 2011
Fumihiro Kasano, Osaka, JP;
Susumu Katayama, Osaka, JP;
Toru Mugiuda, Osaka, JP;
Kazushi Goto, Osaka, JP;
Hidehiko Fujikawa, Osaka, JP;
Motohiro Minamino, Osaka, JP;
Fumihiro Kasano, Osaka, JP;
Susumu Katayama, Osaka, JP;
Toru Mugiuda, Osaka, JP;
Kazushi Goto, Osaka, JP;
Hidehiko Fujikawa, Osaka, JP;
Motohiro Minamino, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A moving object detecting apparatus includes: a transmitting/receiving unit for radiating an ultrasonic wave and receiving a reflective wave reflected from an object present in a monitoring space; a phase detection circuit for mixing reference signals with a reflective signal and obtaining a pair of Doppler signals each having an amplitude depending on a phase difference from the reference signal, each of the Doppler signals having a different phase from each other; a rotation angle calculation unit for calculating a rotation angle; a cumulative addition unit for accumulating the rotation angle; and a comparison unit for comparing the accumulated rotation angle with a threshold value. In the moving object detecting apparatus, a single ultrasonic vibrator is commonly used in the transmitting unit and the receiving unit.