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:
Jun. 30, 2009
Filed:
Dec. 03, 2004
Kazuhide Sano, Yamanashi-ken, JP;
Syunichi Hirose, Minami-Alps, JP;
Kazuhide Sano, Yamanashi-ken, JP;
Syunichi Hirose, Minami-Alps, JP;
Nisca Corporation, Yamanashi-Ken, JP;
Abstract
A sheet feeding apparatus includes two transport devices arranged in a sheet guide that guides a sheet from a stacker to a processing position for reading an image or printing. A double feed detection device is arranged between the transport devices for detecting a double feed of the sheets over a predetermined length region (measurement length). A sheet length recognition device is provided for recognizing at least two portions of a length of the sheet stacked on the stacker in a transport direction, and a judgment device is provided for judging the double feed of the sheets based upon detection data from the double feed detection device. The judgment device judges the double feed of the sheets according to detection data of one measurement region selected from a plurality of measurement regions based on information obtained from the sheet length recognition device.