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.
Patent No.:
Date of Patent:
Nov. 01, 2011
Filed:
Apr. 19, 2007
Applicant:
Chen Weigen, Shanghai, CN;
Inventor:
Chen Weigen, Shanghai, CN;
Assignee:
Shanghai Kohler Electronics, Ltd., Shanghai, CN;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 40/14 (2006.01); H01L 27/00 (2006.01); G01J 5/00 (2006.01); H04N 3/14 (2006.01); H03K 3/017 (2006.01);
U.S. Cl.
CPC ...
Abstract
An active infrared induction instrument powered by a dry battery capable of reducing power consumption through the adjustment of the emitter pulse width. The infrared emitting LED emits infrared signals, which, after being reflected by an object, are received by the infrared photodiode. The infrared signals received by the infrared photodiode then enter an integrated circuit chip through a comparator. The pulse widths of the infrared emission pulse signals are dynamically adjusted after the width of the pulse series is received by the discrimination chip, thus reducing the emission power consumption to save energy.