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Title:
OPTICAL SENSOR AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/047429
Kind Code:
A1
Abstract:
The present invention makes it possible to reduce the measurement time of an optical sensor while maintaining the accuracy thereof. An initial setting circuit (19) is provided with a counter for counting the number of pulse outputs from a first light reception unit (11) in first to nth regions arrived at by equally dividing each period of a reference clock by n, specifies the region from among the first to nth regions having the maximum counter value, and causes a first DLL circuit (17) to operate so as to produce convergence on the specified region.

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Inventors:
SATO HIDEKI
IKUTA YOSHIKI
SHIMIZU TAKAYUKI
HIRAMATSU TAKUMA
Application Number:
PCT/JP2017/021465
Publication Date:
March 15, 2018
Filing Date:
June 09, 2017
Export Citation:
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Assignee:
SHARP KK (JP)
International Classes:
G01S7/4865; G01C3/06; G01J1/42; G01S7/486; G01S17/10
Foreign References:
US20130077082A12013-03-28
JP2005051466A2005-02-24
JP2006329902A2006-12-07
JPH11237473A1999-08-31
JP2012530917A2012-12-06
JP2002214369A2002-07-31
US20160047904A12016-02-18
JP2014081254A2014-05-08
JP2014006257A2014-01-16
JP2012060012A2012-03-22
Attorney, Agent or Firm:
HARAKENZO WORLD PATENT & TRADEMARK (JP)
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