Title:
LIGHT SENSOR AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/115397
Kind Code:
A1
Abstract:
The present invention is provided with a movement direction determination unit (73) for determining that a specific direction is the movement direction of a detection object when it is determined by a second comparator (53) that the absolute value of the ratio of the difference between photoelectric currents of at least two photodetectors arranged in a specific direction with respect to the sum of the photoelectric currents of the at least two photodetectors is greater than a predetermined threshold value.
Inventors:
KIMURA TADAMASA
SHIMIZU TAKAYUKI
SHIMIZU TAKAYUKI
Application Number:
PCT/JP2013/080247
Publication Date:
July 31, 2014
Filing Date:
November 08, 2013
Export Citation:
Assignee:
SHARP KK (JP)
International Classes:
G01S17/58; G01P3/36; G01P13/00; G01V8/20
Foreign References:
| JP2011226952A | 2011-11-10 | |||
| JP2008052796A | 2008-03-06 | |||
| JP2005065131A | 2005-03-10 | |||
| JPS62120922A | 1987-06-02 | |||
| JP2001028134A | 2001-01-30 | |||
| JPH05100024A | 1993-04-23 |
Attorney, Agent or Firm:
HARAKENZO WORLD PATENT & TRADEMARK (JP)
Patent business corporation Hara [Kenzo] international patent firm (JP)
Patent business corporation Hara [Kenzo] international patent firm (JP)
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