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:
Apr. 06, 1999
Filed:
Jun. 13, 1997
Mitsuhiro Nagase, Tokyo, JP;
Laurel Bank Machines Co., Ltd., Tokyo, JP;
Abstract
A bill or security discriminating apparatus includes at least one irradiating device for irradiating a surface of a bill or security at a predetermined angle with the surface thereof, at least one polarization separating device for receiving light reflected by the surface of the bill or security and separating the received light into P-polarized light and S-polarized light, at least one first light detector for photoelectrically detecting the P-polarized light separated by the at least one polarization separating device and generating an electrical signal in accordance with intensity of the detected light, at least one second light detector for photoelectrically detecting the S-polarized light separated by the at least one polarization separating device and generating an electrical signal in accordance with intensity of the detected light, and a discriminator for discriminating the bill or security in accordance with the intensity of the P-polarized light and S-polarized light based on the electrical signals input from the at least one first light detector and the at least one second light detector. According to the thus constituted bill or security discriminating apparatus, it is possible to discriminate bills or securities with high accuracy even if they are damaged or wrinkled.