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:
Jul. 01, 2014

Filed:

Aug. 06, 2013
Applicant:

Pfu Limited, Kahoku, JP;

Inventors:

Shuichi Morikawa, Kahoku, JP;

Masanobu Hongo, Kahoku, JP;

Ryoichi Yasukawa, Kahoku, JP;

Takayuki Umi, Kahoku, JP;

Assignee:

PFU Limited, Kahoku-shi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65H 7/12 (2006.01);
U.S. Cl.
CPC ...
Abstract

There are provided a paper conveying apparatus, a multifeed detection method and a computer-readable, non-transitory medium which can suppress erroneous detection of the occurrence of a multifeed. The paper conveying apparatus includes an ultrasonic detector for outputting an ultrasonic signal, a multifeed detector for determining whether a multifeed of papers has occurred based on the ultrasonic signal, a sound signal generator for generating a sound signal, and a control module for performing an abnormal processing when the multifeed detector determines that a multifeed has occurred and the sound signal generator does not output a predetermined sound signal, and determining that a multifeed has not occurred and not performing the abnormal processing when the multifeed detector determines that a multifeed has occurred and the sound signal generator outputs the predetermined sound signal.


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