The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 13, 2017

Filed:

Nov. 25, 2015
Applicant:

Lixil Corporation, Tokyo, JP;

Inventors:

Yuki Shirai, Tokyo, JP;

Nobuaki Itazu, Tokyo, JP;

Hiroyuki Oura, Tokyo, JP;

Assignee:

LIXIL Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E03C 1/05 (2006.01); G01V 8/20 (2006.01); G01S 17/02 (2006.01);
U.S. Cl.
CPC ...
E03C 1/057 (2013.01); G01S 17/026 (2013.01); G01V 8/20 (2013.01);
Abstract

A person-detecting sensor includes: a range-finding unit that decides whether a distance to a detection object falls within a predetermined detection distance range; a received-light quantity decision unit that decides whether a received-light quantity is equal to or greater than a predetermined received-light quantity threshold; and a continuation decision unit that decides whether a state of the detection object being present is ongoing. In the received-light quantity decision unit, after water discharge is started upon the detection determination unit determining a detection object to be under detection state, for a period during which the continuation decision unit decides the state in which the detection object being present is ongoing, the received-light quantity threshold is set to be lower than prior to when the water discharge is started.


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