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:
Oct. 15, 1985
Filed:
Jun. 28, 1982
Ko Ohtombe, Tokyo, JP;
Tsuyoshi Ishida, Yokohama, JP;
Hideo Osawa, Yokohama, JP;
Kenji Nagahashi, Kawasaki, JP;
Tokyo Shibaura Denki Kabushiki Kaisha, Kawasaki, JP;
Abstract
In a printed matter identifying apparatus of the present invention, the light source illuminates the detecting fields of the note. The reflected light-waves from the detecting fields are lead to the light receivers through the focusing lenses, the diffusion plates, the optical slits, the light conducting paths and red color transmitting and blue color transmitting filters. The output signals from the light receivers are amplified by the amplifiers and sampled by the sampling circuits. Among the sampled color component signals, the red component signals are applied to the subtracter to produce the red component difference signal and the blue component signals are applied to the adder to produce the blue component sum signal. These different signal and sum signal are applied to the comparators respectively and compared with the reference signals read out from the memory. The output signals from the comparators are supplied to the judgment circuit where the judgment of the printed matter is performed.