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1. 发明申请

WO9826378A3 MAGNETIC DETECTOR FOR SECURITY DOCUMENT 审中-公开
标题翻译：用于安全文件的磁性探测器
公开(公告)号：WO9826378A3
公开(公告)日：1998-07-30
申请号：PCT/EP9706970
申请日：1997-12-08
申请人： BEKAERT SA NV , PA CONSULTING SERVICES , ROBERTSON PAUL , FISHER JOHN , BURRELL JOHN
发明人： ROBERTSON PAUL , FISHER JOHN , BURRELL JOHN
IPC分类号： G06K7/08 , G07D7/00 , G07D7/04 , G07F7/08
CPC分类号： G07F7/086 , G06K7/084 , G07D7/04
摘要： An apparatus for detecting the presence of magnetic elongated particles in a substrate the base material of which has magnetic properties substantially differing from the corresponding magnetic properties of the elongated particles. The elongated particles have such a long and thin form that their demagnetisation factor N is smaller than 1/250, they have a diameter smaller than 30 micrometer and a magnetic saturation field greater than 100 A/m. The apparatus comprising: (a) means for emitting an electromagnetic source signal of one or more particular base frequencies to said substrate so that any present magnetic elongated particles go into a non-linear part of their B-H curve for at least part of a cycle of the source signal; (b) means for detecting an electromagnetic detection signal emanating from said substrate; (c) means for testing the detection signal for the presence of particular higher harmonics of said base frequencies or of any linear combination of said base frequencies or of said harmonics, said particular highher harmonics being indicative of the presence of said magnetic elongated particles. 00000
摘要翻译：一种用于检测基材中的磁性细长颗粒的存在的装置，其基材具有与细长颗粒的相应磁性能基本上不同的磁性能。细长的颗粒具有这样的长而薄的形式，使其去磁因子N小于1/250，它们的直径小于30微米，磁饱和场大于100A / m。该装置包括：（a）用于向所述衬底发射一个或多个特定基本频率的电磁源信号的装置，使得任何存在的磁性细长颗粒进入它们的BH曲线的非线性部分中至少部分循环源信号; （b）用于检测从所述衬底发出的电磁检测信号的装置; （c）用于测试所述检测信号以存在所述基频或所述基频或所述谐波的任何线性组合的特定高次谐波的存在，所述特定高次谐波指示所述磁细长颗粒的存在。 00000

2. 发明申请

WO9826377A3 ARTICLE RECOGNITION AND VERIFICATION 审中-公开
标题翻译：文章识别和验证
公开(公告)号：WO9826377A3
公开(公告)日：1998-07-23
申请号：PCT/EP9706969
申请日：1997-12-08
申请人： BEKAERT SA NV , PA CONSULTING SERVICES , FISHER JOHN , ROBERTSON PAUL , BURRELL JON , CROSS DAVID
发明人： FISHER JOHN , ROBERTSON PAUL , BURRELL JON , CROSS DAVID
IPC分类号： G06K7/08 , G07D7/00 , G07D7/04 , G07F7/08
CPC分类号： G07F7/086 , G06K7/084 , G07D7/04
摘要： A method for checking the authenticity of a security article (158) wherein the security article contains magnetic particles having a magnetic saturation field Hs being greater than 100 A/m. The method comprises the following steps: (a) generating an alternating field of one or more fundamental frequencies; (b) subjecting an article (158) to be detected to said field; (c) detecting a detection signal emanating from said article to be detected; (d) examining the detection signal for the presence of any particular higher harmonics of said fundamental frequencies or of any linear combination of said fundamental frequencies and of said harmonics, said particular harmonics or said linear combination being indicative of the presence of said magnetic particles. The method is applied at point of transaction locations, where the article to be detected is brought into close proximity with a sensor. 00000
摘要翻译：一种用于检查安全物品（158）的真实性的方法，其中所述安全物品包含磁饱和场Hs大于100A / m的磁性颗粒。该方法包括以下步骤：（a）产生一个或多个基本频率的交变场; （b）使物品（158）被检测到所述场; （c）检测从所述待检测物品发出的检测信号; （d）检查所述检测信号是否存在所述基频的任何特定高次谐波或所述基频和所述谐波的任何线性组合，所述特定谐波或所述线性组合指示所述磁性颗粒的存在。该方法应用于交易位置处，其中要检测的物品与传感器紧密接近。 00000

3. 发明专利

TR9901293T2 未知
公开(公告)号：TR9901293T2
公开(公告)日：2000-02-21
申请号：TR9901293
申请日：1997-12-08
申请人： BEKAERT SA NV , PA CONSULTING SERVICES
发明人： FISHER JOHN , ROBERTSON PAUL , BURRELL JOHN , CROSS DAVID
IPC分类号： G06K7/08 , G07D7/00 , G07D7/04 , G07F7/08
CPC分类号： G07F7/086 , G06K7/084 , G07D7/04

4. 发明专利

TR199901293T2 未知
公开(公告)号：TR199901293T2
公开(公告)日：2000-02-21
申请号：TR9901293
申请日：1997-12-08
申请人： BEKAERT SA NV , PA CONSULTING SERVICES
发明人： FISHER JOHN , ROBERTSON PAUL , BURRELL JOHN , CROSS DAVID
IPC分类号： G06K7/08 , G07D7/00 , G07D7/04 , G07F7/08
摘要： A method for checking the authenticity of a security article of the type containing magnetic particles having a magnetic saturation field Hs being greater than 100 A/m. The method includes the following steps: (a) generating an alternating field of one or more fundamental frequencies; (b) subjecting an article to be detected to the field; (c) detecting a detection signal emanating from the article to be detected; and (d) examining the detection signal for the presence of any particular higher harmonics of the fundamental frequencies or of any linear combination of the fundamental frequencies and of the harmonics, the particular harmonics or the linear combination being indicative of the presence of the magnetic particles. The method is applied at point of transaction locations, where the article to be detected is brought into close proximity with a sensor.

5. 发明专利

TR9901292T2 未知
公开(公告)号：TR9901292T2
公开(公告)日：1999-10-21
申请号：TR9901292
申请日：1997-12-08
申请人： BEKAERT SA NV , PA CONSULTING SERVICES
发明人： ROBERTSON PAUL , FISHER JOHN , BURRELL JOHN
IPC分类号： G06K7/08 , G07D7/00 , G07D7/04 , G07F7/08
CPC分类号： G07F7/086 , G06K7/084 , G07D7/04

6. 发明专利

TR199901292T2 未知
公开(公告)号：TR199901292T2
公开(公告)日：1999-10-21
申请号：TR9901292
申请日：1997-12-08
申请人： BEKAERT SA NV , PA CONSULTING SERVICES
发明人： ROBERTSON PAUL , FISHER JOHN , BURRELL JOHN
IPC分类号： G06K7/08 , G07D7/00 , G07D7/04 , G07F7/08
摘要： A method for checking the authenticity of a security article of the type containing magnetic particles having a magnetic saturation field Hs being greater than 100 A/m. The method includes the following steps: (a) generating an alternating field of one or more fundamental frequencies; (b) subjecting an article to be detected to the field; (c) detecting a detection signal emanating from the article to be detected; and (d) examining the detection signal for the presence of any particular higher harmonics of the fundamental frequencies or of any linear combination of the fundamental frequencies and of the harmonics, the particular harmonics or the linear combination being indicative of the presence of the magnetic particles. The method is applied at point of transaction locations, where the article to be detected is brought into close proximity with a sensor.

7. 发明专利

NO992868D0 未知
公开(公告)号：NO992868D0
公开(公告)日：1999-06-11
申请号：NO992868
申请日：1999-06-11
申请人： BEKAERT SA NV , PA CONSULTING SERVICES
发明人： ROBERTSON PAUL , FISHER JOHN , BURRELL JON
IPC分类号： G06K7/08 , G07D7/00 , G07D7/04 , G07F7/08
摘要： A method for checking the authenticity of a security article of the type containing magnetic particles having a magnetic saturation field Hs being greater than 100 A/m. The method includes the following steps: (a) generating an alternating field of one or more fundamental frequencies; (b) subjecting an article to be detected to the field; (c) detecting a detection signal emanating from the article to be detected; and (d) examining the detection signal for the presence of any particular higher harmonics of the fundamental frequencies or of any linear combination of the fundamental frequencies and of the harmonics, the particular harmonics or the linear combination being indicative of the presence of the magnetic particles. The method is applied at point of transaction locations, where the article to be detected is brought into close proximity with a sensor.

8. 发明专利

AU5856298A Magnetic detector for security document 未知
公开(公告)号：AU5856298A
公开(公告)日：1998-07-03
申请号：AU5856298
申请日：1997-12-08
申请人： BEKAERT SA NV , PA CONSULTING SERVICES
发明人： ROBERTSON PAUL , FISHER JOHN , BURRELL JOHN
IPC分类号： G06K7/08 , G07D7/00 , G07D7/04 , G07F7/08
摘要： A method for checking the authenticity of a security article of the type containing magnetic particles having a magnetic saturation field Hs being greater than 100 A/m. The method includes the following steps: (a) generating an alternating field of one or more fundamental frequencies; (b) subjecting an article to be detected to the field; (c) detecting a detection signal emanating from the article to be detected; and (d) examining the detection signal for the presence of any particular higher harmonics of the fundamental frequencies or of any linear combination of the fundamental frequencies and of the harmonics, the particular harmonics or the linear combination being indicative of the presence of the magnetic particles. The method is applied at point of transaction locations, where the article to be detected is brought into close proximity with a sensor.

9. 发明专利

CA2269939A1 MAGNETIC DETECTOR FOR SECURITY DOCUMENT 未知
公开(公告)号：CA2269939A1
公开(公告)日：1998-06-18
申请号：CA2269939
申请日：1997-12-08
申请人： BEKAERT SA NV , PA CONSULTING SERVICES
发明人： FISHER JOHN , BURRELL JON , ROBERTSON PAUL
IPC分类号： G06K7/08 , G07D7/00 , G07D7/04 , G07F7/08
摘要： An apparatus for detecting the presence of magnetic elongated particles in a substrate the base material of which has magnetic properties substantially differing from the corresponding magnetic properties of the elongated particles. The elongated particles have such a long and thin form that their demagnetisation factor N is smaller than 1/250, they have a diameter smaller than 30 micrometer and a magnetic saturation field greater than 100 A/m. The apparatus comprising: (a) means for emitting an electromagnetic source signal of one or more particular base frequencies to said substrate so that any present magnetic elongated particles go into a non-linear part of their B-H curve for at least part of a cycle of the source signal; (b) means for detecting an electromagnetic detection signal emanating from said substrate; (c) means for testing the detection signal for the presence of particular higher harmonics of said base frequencies or of any linear combination of said base frequencies or of said harmonics, said particular highher harmonics being indicative of the presence of said magnetic elongated particles.

10. 发明专利

AU5984598A Article recognition and verification 未知
公开(公告)号：AU5984598A
公开(公告)日：1998-07-03
申请号：AU5984598
申请日：1997-12-08
申请人： BEKAERT SA NV , PA CONSULTING SERVICES
发明人： FISHER JOHN , ROBERTSON PAUL , BURRELL JON , CROSS DAVID
IPC分类号： G06K7/08 , G07D7/00 , G07D7/04 , G07F7/08
摘要： A method for checking the authenticity of a security article of the type containing magnetic particles having a magnetic saturation field Hs being greater than 100 A/m. The method includes the following steps: (a) generating an alternating field of one or more fundamental frequencies; (b) subjecting an article to be detected to the field; (c) detecting a detection signal emanating from the article to be detected; and (d) examining the detection signal for the presence of any particular higher harmonics of the fundamental frequencies or of any linear combination of the fundamental frequencies and of the harmonics, the particular harmonics or the linear combination being indicative of the presence of the magnetic particles. The method is applied at point of transaction locations, where the article to be detected is brought into close proximity with a sensor.

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