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:
Mar. 01, 2011

Filed:

Jan. 28, 2009
Applicants:

Isao Kubo, Nagoya, JP;

Kenichi Dan, Nagoya, JP;

Inventors:

Isao Kubo, Nagoya, JP;

Kenichi Dan, Nagoya, JP;

Assignee:

Brother Kogyo Kabushiki Kaisha, Nagoya-shi, Aichi-ken, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 15/00 (2006.01); G01N 27/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

The humidity detecting device includes a detection unit and a controller. The detection unit includes a humidity sensor for producing a humidity detection signal by detecting a humidity, a temperature sensor for producing a temperature detection signal by detecting a temperature surrounding the humidity sensor, and a common power supply line connected to the humidity sensor and the temperature sensor. The controller includes an application circuit for applying a power supply voltage to the humidity sensor and the temperature sensor through the common power supply line, a read circuit for producing a read-out humidity value corresponding to the humidity detection signal and a read-out temperature value corresponding to the temperature detection signal, and a correction circuit for correcting the read-out humidity value based on the read-out temperature value.


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