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1. 发明授权

US07063257B2 Magnetic thread reader 失效
标题翻译：磁线阅读器
公开(公告)号：US07063257B2
公开(公告)日：2006-06-20
申请号：US10432222
申请日：2002-01-07
申请人： John Buttifant , John Alan Skinner , Peter Dilwyn Evans , Michael Potter , Peter Alan Pullan , Barry Clifford Scowen
发明人： John Buttifant , John Alan Skinner , Peter Dilwyn Evans , Michael Potter , Peter Alan Pullan , Barry Clifford Scowen
IPC分类号： G06K7/08
CPC分类号： G06K7/084 , G07D7/04
摘要： A method of detecting a magnetic thread comprises causing relative movement between the thread and an array of magnetic heads, each head generates a signal upon detecting a portion of the thread. The arrival of a thread at one of the heads is detected, that head being denoted a primary head, and the head on each side a secondary head. Output signals from the primary and secondary heads are monitored to generate a representation of the thread, and the magnitude of the signals from the primary and secondary heads are compared such that if the magnitude of the output signal from a secondary head exceeds that from the primary head, the primary and secondary heads are reallocated accordingly.
摘要翻译：一种检测磁线的方法包括引起线与磁头阵列之间的相对移动，每个头在检测线的一部分时产生信号。检测到螺纹在其中一个头部的到达，该头部被标记为主头部，并且每个侧面上的头部是次级头部。监视来自初级和次级磁头的输出信号以产生线程的表示，并且比较来自主磁头和次级磁头的信号的大小，使得如果来自次级磁头的输出信号的幅度超过从主磁头头，主要和次要的头被相应地重新分配。

2. 发明授权

US07516893B2 Apparatus for and method of detecting a coded magnetic thread 失效
标题翻译：用于检测编码磁线的装置和方法
公开(公告)号：US07516893B2
公开(公告)日：2009-04-14
申请号：US11410131
申请日：2006-04-25
申请人： John Buttifant , John Alan Skinner , Peter Dilwyn Evans , Michael Potter , Peter Alan Pullan , Barry Clifford Scowen
发明人： John Buttifant , John Alan Skinner , Peter Dilwyn Evans , Michael Potter , Peter Alan Pullan , Barry Clifford Scowen
IPC分类号： G06K7/08
CPC分类号： G06K7/084 , G07D7/04
摘要： A method of detecting a coded magnetic thread is provided that includes sensing the response of a magnetic field detector as a thread passes the detector, the response varying from an initial magnitude in first and second senses to exhibit a first peak, and then in the first sense to exhibit a second peak; comparing the response with first and second thresholds disposed about the initial magnitude in the first and second senses respectively; and indicating the passage of a code element of the thread when the response passes the second threshold and then the first threshold in a predetermined manner characterized in that the first threshold is adjusted in accordance with a first predetermined algorithm based on the magnitude of the first peak. The first predetermined algorithm adjusts the first threshold so that the magnitude of the first threshold is the average of a predetermined number of preceding first peaks.
摘要翻译：提供了一种检测编码磁线的方法，其包括当线程通过检测器时感测磁场检测器的响应，响应从第一和第二感测中的初始幅度变化以展现出第一峰值，然后在第一意义上表现出第二个高峰; 将响应与分别围绕第一和第二感测的初始幅度设置的第一和第二阈值进行比较; 并且当所述响应经过所述第二阈值然后以预定方式通过所述第一阈值时，指示所述线程的代码元素的通过，其特征在于，基于所述第一峰值的大小，根据第一预定算法来调整所述第一阈值。第一预定算法调整第一阈值，使得第一阈值的幅度是预定数量的先前第一峰值的平均值。

3. 发明授权

US07434732B2 Magnetic thread reader 失效
标题翻译：磁线阅读器
公开(公告)号：US07434732B2
公开(公告)日：2008-10-14
申请号：US11410130
申请日：2006-04-25
申请人： John Buttifant , John Alan Skinner , Peter Dilwyn Evans , Michael Potter , Peter Alan Pullan , Barry Clifford Scowen
发明人： John Buttifant , John Alan Skinner , Peter Dilwyn Evans , Michael Potter , Peter Alan Pullan , Barry Clifford Scowen
IPC分类号： G06K7/08
CPC分类号： G06K7/084 , G07D7/04
摘要： Systems and methods for identifying a coded magnetic thread comprise generating a digital representation of the thread and comparing the digital representation with one or more known digital representations; scanning the digital representation to locate a predetermined code sequence; and rotating the digital representation to locate the predetermined code sequence in a predetermined position corresponding to the position of the predetermined code sequence in a stored version of the or each known digital representation prior to carrying out the comparison.
摘要翻译：用于识别编码磁线的系统和方法包括生成线程的数字表示并将数字表示与一个或多个已知数字表示进行比较; 扫描数字表示以定位预定代码序列; 并且在执行比较之前，旋转数字表示以将预定代码序列定位在与预定代码序列的位置相对应的预定位置，以在所存储的版本的或每个已知的数字表示中。

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