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:
Aug. 24, 2010

Filed:

Oct. 12, 2007
Applicants:

Siang Leong Foo, Penang, MY;

Yee Loong Chin, Perak, MY;

Inventors:

Siang Leong Foo, Penang, MY;

Yee Loong Chin, Perak, MY;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 29/393 (2006.01);
U.S. Cl.
CPC ...
Abstract

An apparatus for sensing a media type of a print medium. Embodiments of the apparatus include an emitter, a polarization filter, and a detector. The emitter is configured to emit light toward a surface of the print medium. The polarization filter is configured to filter polarized light reflected from the surface of the medium. The detector is coupled to the polarization filter and configured to detect the filtered light. The detector is also configured to generate an electrical signal representative of the detected light.


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