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Patent Searching and Data


Title:
OBJECT DETECTION DEVICE AND INFORMATION PROCESSING DEVICE
Document Type and Number:
WIPO Patent Application WO/2016/063911
Kind Code:
A1
Abstract:
An object detection device (1) comprising: first and second light sensors (3, 7) including first and second light-emitting elements (4, 8) and first and second light-receiving elements (5, 9); and a signal processing circuit (11). The signal processing circuit (11) processes first and second reflected light signals (Sr1, Sr2) output from the first and second light-receiving elements (5, 9), using an analog signal or a multi-value digital signal. The signal processing circuit (11) has threshold values (TH1, TH2) for detecting changes in the signal strength of the first and second reflected light signals (Sr1, Sr2). The signal processing circuit (11): compares the time at which the signal strength of the first reflected light signal (Sr1) exceeds the threshold value (TH1) and changes and the time at which the signal strength of the second reflected light signal (Sr2) exceeds the threshold value (TH2) and changes; and detects the travel direction of an object (Obj) for detection.

Inventors:
ISHIKAWA HIROKI (JP)
Application Number:
PCT/JP2015/079695
Publication Date:
April 28, 2016
Filing Date:
October 21, 2015
Export Citation:
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Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
G01V8/20; G06F3/0362
Foreign References:
JP2002287870A2002-10-04
JP2007094802A2007-04-12
JPH03274822A1991-12-05
EP2631742A22013-08-28
JP2002062984A2002-02-28
Attorney, Agent or Firm:
HIROSE KAZUHIKO (JP)
Kazuhiko Hirose (JP)
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