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1.发明公开
公开(公告)号：EP0092691A2
公开(公告)日：1983-11-02
申请号：EP83103206.5
申请日：1983-03-30
发明人： Ohtombe, Ko
IPC分类号： G07D7/00
CPC分类号： G07D7/12
摘要： An apparatus for optically detecting a security thread (2) embedded in a paper-like material (1), e.g., a paper currency (P). The paper-like material (1) is carried through a detection region defined by an infrared radiation source (3) and two infrared radiation detectors (6; 7). Two optical filters (4, 5) are mounted on the detectors (6; 7), respectively. Those filters (4; 5) have different infrared transmission characteristics. Therefore, one detector (6) can detect infrared rays having wavelengths only within a specific range determined by that one filter (4), and the other detector (7) can detect infrared rays having wavelengths only within another specific range determined by the other filter (5). When the infrared radiation source (3) projects infrared rays to the paper-like material (1), the detectors (6; 7) deliver the respective detection signals. A discriminator (10) processes these detection signals to discriminate wherether or not a security thread (2) is embedded in the paper-like material (1) and also what a detected security material (1) is made of.
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公开(公告)号：EP0069893A3
公开(公告)日：1983-06-29
申请号：EP82105585
申请日：1982-06-24
发明人： Ohtombe, Ko , Ishida, Tsuyoshi , Osawa, Hideo , Nagahashi, Kenji
IPC分类号： G07D07/00
摘要： In a printed matter identifying apparatus of the present invention, the light source (2) illuminates the detecting fields (3, 3') of the note (1). The reflected light-waves from the detecting fields (3, 3') are lead to the light receivers (10, 11, 10', 11') through the focusing lenses (4, 4'), the diffusion plates (5, 5'), the optical slits (6, 6'), the light conducting paths (7, 7') and red color transmitting and blue color transmitting filters (8, 9, 8', 9'). The output signals from the light receivers (10, 11, 10', 11') are amplified by the amplifiers (12, 13, 12', 13') and sampled by the sampling circuits (14,15,16,17). Among the sampled color component signals, the red component signals are applied to the subtracter (20) to produce the red component difference signal and the blue component signals are applied to the adder (21) to produce the blue component sum signal. These different signal and sum signal are applied to the comparators (27, 28) respectively and compared with the reference signals read out from the memory (24). The output signals from the comparators (27, 28) are supplied to the judgment circuit (29) where the judgement of the printed matter is performed.
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4.发明授权
公开(公告)号：EP0092691B2
公开(公告)日：1994-04-27
申请号：EP83103206.5
申请日：1983-03-30
发明人： Ohtombe, Ko
IPC分类号： G07D7/00
CPC分类号： G07D7/12
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5.发明授权
公开(公告)号：EP0092691B1
公开(公告)日：1989-12-27
申请号：EP83103206.5
申请日：1983-03-30
发明人： Ohtombe, Ko
IPC分类号： G07D7/00
CPC分类号： G07D7/12
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公开(公告)号：EP0069893A2
公开(公告)日：1983-01-19
申请号：EP82105585.2
申请日：1982-06-24
发明人： Ohtombe, Ko , Ishida, Tsuyoshi , Osawa, Hideo , Nagahashi, Kenji
IPC分类号： G07D7/00
摘要： In a printed matter identifying apparatus of the present invention, the light source (2) illuminates the detecting fields (3, 3') of the note (1). The reflected light-waves from the detecting fields (3, 3') are lead to the light receivers (10, 11, 10', 11') through the focusing lenses (4, 4'), the diffusion plates (5, 5'), the optical slits (6, 6'), the light conducting paths (7, 7') and red color transmitting and blue color transmitting filters (8, 9, 8', 9'). The output signals from the light receivers (10, 11, 10', 11') are amplified by the amplifiers (12, 13, 12', 13') and sampled by the sampling circuits (14,15,16,17). Among the sampled color component signals, the red component signals are applied to the subtracter (20) to produce the red component difference signal and the blue component signals are applied to the adder (21) to produce the blue component sum signal. These different signal and sum signal are applied to the comparators (27, 28) respectively and compared with the reference signals read out from the memory (24). The output signals from the comparators (27, 28) are supplied to the judgment circuit (29) where the judgement of the printed matter is performed.
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7.发明公开
公开(公告)号：EP0092691A3
公开(公告)日：1986-10-08
申请号：EP83103206
申请日：1983-03-30
发明人： Ohtombe, Ko
IPC分类号： G07D07/00
CPC分类号： G07D7/12
摘要： An apparatus for optically detecting a security thread (2) embedded in a paper-like material (1), e.g., a paper currency (P). The paper-like material (1) is carried through a detection region defined by an infrared radiation source (3) and two infrared radiation detectors (6; 7). Two optical filters (4, 5) are mounted on the detectors (6; 7), respectively. Those filters (4; 5) have different infrared transmission characteristics. Therefore, one detector (6) can detect infrared rays having wavelengths only within a specific range determined by that one filter (4), and the other detector (7) can detect infrared rays having wavelengths only within another specific range determined by the other filter (5). When the infrared radiation source (3) projects infrared rays to the paper-like material (1), the detectors (6; 7) deliver the respective detection signals. A discriminator (10) processes these detection signals to discriminate wherether or not a security thread (2) is embedded in the paper-like material (1) and also what a detected security material (1) is made of.
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公开(公告)号：EP0069893B1
公开(公告)日：1986-06-04
申请号：EP82105585.2
申请日：1982-06-24
发明人： Ohtombe, Ko , Ishida, Tsuyoshi , Osawa, Hideo , Nagahashi, Kenji
IPC分类号： G07D7/00
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公开(公告)号：EP0067898A1
公开(公告)日：1982-12-29
申请号：EP81104817.2
申请日：1981-06-22
IPC分类号： G07D7/00
摘要： A currency note identification system comprises a line sensor (14) generating a scanning signal corresponding to the printed pattern on a currency note, an adder (42) for summing picture element signals in the scanning signal from the line sensor (14) for each scanning line, and a detecting circuit (45) for detecting the leading and trailing edges of a printed section of the currency note from the sum signal output of the adder (42). Printed pattern data for printed patterns at predetermined positions with respect to the leading and trailing edges detected by the detecting circuit are detected, and the similarity of the detected pattern data to standard pattern data is calculated by a calculator (51). The kind and/or genuineness of the currency note is determined from the similarity obtained from the calculator (51).
摘要翻译： 一种钞票识别系统，包括：线传感器（14），用于产生对应于纸币上印刷图案的扫描信号;加法器（42），用于对来自线传感器（14）的扫描信号中的像素信号进行求和， 以及检测电路（45），用于根据加法器（42）的和信号输出来检测钞票的打印部分的前后边缘。 通过计算器（51）计算检测电路检测出的相对于检测前后的预定位置的印刷图案的印刷图案数据。 根据从计算器（51）获得的相似度确定货币票据的种类和/或真实性。
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