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:
Nov. 11, 2008

Filed:

Jan. 17, 2006
Applicants:

Gi-cheol Jeong, Yongin-si, KR;

Seock-deock Hong, Suwon-si, KR;

Inventors:

Gi-cheol Jeong, Yongin-si, KR;

Seock-deock Hong, Suwon-si, KR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 21/86 (2006.01);
U.S. Cl.
CPC ...
Abstract

Provided is a paper detection apparatus for detecting the size of a sheet of paper transferred along a paper transfer path, which includes a light source and an optical sensor. A plurality of light emitting optical fibers are located at a first side of the paper transfer path and receive light radiated by the light source and emit the received light to a plurality of positions in a widthwise direction of the paper. A plurality of light receiving optical fibers are located at a second side of the paper transfer path and guide the light emitted by the light emitting optical fibers toward the optical sensor. A determination unit detects the size of the paper based on the amount of light detected by the optical sensor.


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