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:
Feb. 14, 2023
Filed:
Apr. 27, 2021
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventor:
Takayuki Shiota, Kitakyushu, JP;
Assignee:
SEIKO EPSON CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65H 7/18 (2006.01); B65H 3/06 (2006.01); B65H 7/14 (2006.01); B65H 7/04 (2006.01);
U.S. Cl.
CPC ...
B65H 7/18 (2013.01); B65H 3/063 (2013.01); B65H 3/0669 (2013.01); B65H 7/04 (2013.01); B65H 7/14 (2013.01); B65H 2301/42322 (2013.01); B65H 2511/13 (2013.01); B65H 2511/15 (2013.01); B65H 2511/22 (2013.01); B65H 2557/2423 (2013.01);
Abstract
A document feeding device includes a document placement unit at which a document is placed, a feeding roller for feeding the document, and a ranging sensor for measuring a distance to the document located most upward on the document placement unit. A control unit stops feeding the document by the feeding roller based on post-processing distance data obtained by statistically processing time series data of the distance measured by the ranging sensor.