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Title:
MOBILE-BODY DETECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/203504
Kind Code:
A1
Abstract:
This mobile-body detection device is provided with an oscillation circuit, a transmitter, a receiver, a phase detection unit, a mobile-body determination unit, and a control unit. The phase detection unit has: a mixer; a low pass filter for only allowing a frequency component at or below a first cutoff frequency to pass therethrough; a high pass filter for switching a second cutoff frequency and only allowing a frequency component at or above the second cutoff frequency to pass therethrough; and an amplifier. The control unit controls the high pass filter in a manner such that the second cutoff frequency during an interval lasting from when the transmitter starts transmitting a continuous energy wave until a prescribed waiting interval has elapsed is higher than the second cutoff frequency after the waiting time has elapsed.

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Inventors:
MUGIUDA TORU
GOTO KAZUSHI
Application Number:
PCT/JP2014/003141
Publication Date:
December 24, 2014
Filing Date:
June 12, 2014
Export Citation:
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Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
G01S15/52; G01S7/534
Domestic Patent References:
WO2006075631A12006-07-20
Foreign References:
JP2013079855A2013-05-02
JP2005142867A2005-06-02
JPS63275917A1988-11-14
JP2007183182A2007-07-19
JP2008145255A2008-06-26
JP2013079855A2013-05-02
JP2008145255A2008-06-26
Other References:
See also references of EP 3012661A4
Attorney, Agent or Firm:
NISHIKAWA, Yoshikiyo et al. (JP)
Yoshikiyo Nishikawa (JP)
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