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:
Oct. 14, 2014
Filed:
Nov. 30, 2011
Applicants:
Masanobu Hongo, Ishikawa, JP;
Tetsuo Funada, Ishikawa, JP;
Nobuhisa Yamazaki, Ishikawa, JP;
Inventors:
Assignee:
PFU Limited, Kahoku-shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65H 7/06 (2006.01); B65H 7/02 (2006.01);
U.S. Cl.
CPC ...
B65H 7/06 (2013.01); B65H 2553/30 (2013.01); B65H 2511/528 (2013.01); B65H 2515/82 (2013.01); B65H 2801/06 (2013.01);
Abstract
There is provided a paper feeding device including: a microphone which detects sound occurred on a paper conveying path; a pre-processing unit which performs pre-processing on a signal of the sound detected by the microphone; and a jam detection unit which detects a jam of paper based on the sound signal on which the pre-processing is performed, a reference value about intensity of the sound, and a reference value about a duration time of the sound.