Title:
MOVING BODY DETECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2010/084806
Kind Code:
A1
Abstract:
Provided is a moving body detection device capable of obtaining a step-like output by a simple circuit element, using an A-phase output and a B-phase output which have different phases relative to each other. The A-phase output (Va) and the B-phase output (Vb) which are obtained from a detection circuit unit (30) and have different phases relative to each other are provided to a reverse phase input part (-) and a normal phase input part (+) of a virtual short operational amplifier, respectively. The A-phase output (Va) and the B-phase output (Vb) are provided to an intermediate processing unit (53), an intermediate output (Vc) is obtained by logical operation of the intermediate processing unit (53), and the intermediate output (Vc) is provided to the reverse phase input part (-) together with the A-phase output (Va). As a result, an output (Vout) of an inverting amplifier circuit (52) becomes an output having a step-like change.
Inventors:
TSUCHIYA DAISUKE (JP)
KAWAHATA KEN (JP)
KAWAHATA KEN (JP)
Application Number:
PCT/JP2010/050260
Publication Date:
July 29, 2010
Filing Date:
January 13, 2010
Export Citation:
Assignee:
ALPS ELECTRIC CO LTD (JP)
TSUCHIYA DAISUKE (JP)
KAWAHATA KEN (JP)
TSUCHIYA DAISUKE (JP)
KAWAHATA KEN (JP)
International Classes:
G01D5/244
Foreign References:
| JP2007218652A | 2007-08-30 | |||
| JPH06165572A | 1994-06-10 | |||
| JPH04323515A | 1992-11-12 |
Attorney, Agent or Firm:
NOZAKI, Teruo et al. (JP)
Teruo Nozaki (JP)
Teruo Nozaki (JP)
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