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1. 发明授权

US4656420A Method and circuit arrangements for detecting and evaluating faults in recording media having digital signals recorded on one or more tracks 失效
标题翻译：用于检测和评估具有记录在一个或多个轨道上的数字信号的记录介质中的故障的方法和电路装置
公开(公告)号：US4656420A
公开(公告)日：1987-04-07
申请号：US540385
申请日：1983-10-11
申请人： Peter Felleisen , Aribert Krug , Peter Grosshans
发明人： Peter Felleisen , Aribert Krug , Peter Grosshans
IPC分类号： G01R33/12 , G11B5/00 , G11B5/09 , G11B5/84 , G11B20/10 , G11B20/18 , G11B27/36
CPC分类号： G11B20/10009 , G11B20/18
摘要： A method and circuit arrangements for detecting and evaluating dropouts or drop-ins on recording media, comprising reading and modifying the recorded digital signals, the size and type of fault being evaluated on the basis of fixed threshold levels. In the case of a dropout, for example, the fault is weighted by determining the differential of the envelope of the read signal. In the case of a drop-in, other noise signals are left out of consideration by nonlinear emphasis of the drop-in and appropriate choice of the threshold value. A circuit combination enables both dropouts and drop-ins to be detected and evaluated.
摘要翻译：一种用于检测和评估记录介质上的丢失或丢弃的方法和电路装置，包括基于固定的阈值水平读取和修改所记录的数字信号，所评估的故障的大小和类型。例如，在丢失的情况下，通过确定读取信号的包络的差分来对故障进行加权。在插入的情况下，通过非常强调插入和适当选择阈值来考虑其他噪声信号。电路组合使得能够检测和评估掉落和掉落。

2. 发明授权

US4557947A Process for polishing the surfaces of magnetic storage disks 失效
标题翻译：用于抛光磁存储盘表面的工艺
公开(公告)号：US4557947A
公开(公告)日：1985-12-10
申请号：US127085
申请日：1980-03-04
申请人： Karl Deimling , Roland Falk , Aribert Krug , Peter Nagel , Rudolf Sand
发明人： Karl Deimling , Roland Falk , Aribert Krug , Peter Nagel , Rudolf Sand
IPC分类号： C09G1/18 , C09G1/00
CPC分类号： C09G1/18
摘要： A process for polishing the ground surfaces of magnetic storage disks which consist of a rigid substrate provided on both sides with a firmly adhering magnetic coating consisting of a magnetic material finely dispersed in an organic polymer and conventional additives, by pressing felt rings or felt disks against the moving magnetic storage disk, to the surface of which an aqueous emulsion containing butyl acetate with or without butane-1,4-diol is applied.
摘要翻译：一种用于抛光磁性存储盘的接地表面的方法，其由设置在两侧的刚性基板和由紧密粘附的磁性涂层组成，所述磁性涂层由微细分散在有机聚合物中的磁性材料和常规添加剂组成，通过将毡环或毡盘压靠在其上移动的磁性存储盘，其表面涂覆含有或不含有丁烷-1,4-二醇的乙酸丁酯的水性乳液。

3. 发明授权

US4754222A Method for detecting and evaluating dropouts in recording media having digital signals recorded thereon 失效
标题翻译：用于检测和评估其上记录有数字信号的记录介质中的丢失的方法
公开(公告)号：US4754222A
公开(公告)日：1988-06-28
申请号：US947178
申请日：1986-12-29
申请人： Peter Felleisen , Aribert Krug , Peter Grosshans
发明人： Peter Felleisen , Aribert Krug , Peter Grosshans
IPC分类号： G01R33/12 , G11B5/00 , G11B5/09 , G11B5/84 , G11B20/10 , G11B20/18 , G11B27/36
CPC分类号： G11B20/10009 , G11B20/18
摘要： A method and circuit arrangements for detecting and evaluating dropouts or drop-ins on recording media, comprising reading and modifying the recorded digital signals, the size and type of fault being evaluated on the basis of fixed threshold levels. In the case of a dropout, for example, the fault is weighted by determining the differential of the envelope of the read signal. In the case of a drop-in, other noise signals are left out of consideration by nonlinear emphasis of the drop-in and appropriate choice of the threshold value. A circuit combination enables both dropouts and drop-ins to be detected and evaluated.
摘要翻译：一种用于检测和评估记录介质上的丢失或丢弃的方法和电路装置，包括基于固定的阈值水平读取和修改所记录的数字信号，所评估的故障的大小和类型。例如，在丢失的情况下，通过确定读取信号的包络的差分来对故障进行加权。在插入的情况下，通过非常强调插入和适当选择阈值来考虑其他噪声信号。电路组合使得能够检测和评估掉落和掉落。

4. 发明授权

US4043297A Device for the magnetic orientation of magnetic recording media 失效
标题翻译：磁记录介质的磁性定向装置
公开(公告)号：US4043297A
公开(公告)日：1977-08-23
申请号：US731140
申请日：1976-10-12
申请人： Job-Werner Hartmann , Roland Falk , Aribert Krug , Georg Huber , Werner Balz , Karl Mahler
发明人： Job-Werner Hartmann , Roland Falk , Aribert Krug , Georg Huber , Werner Balz , Karl Mahler
IPC分类号： G11B5/845 , B05C11/00
CPC分类号： G11B5/845
摘要： A process and apparatus for producing magnetic discs in which the preferred direction of orientation of the anisotropic magnetic particles, contained in an organic binder system, is tangential to the circumference of the disc. Orientation is effected, prior to solidification of the magnetic layer, by the action of a magnetic field which is formed in the plane of symmetry between at least two pairs of magnetic poles, the poles of each pair being of the same polarity and opposite each other. One pair of poles flares out in cross section toward the plane of symmetry between the pairs of poles, whereas the other pair or pairs of poles of opposite polarity, when viewed in cross section, taper toward the said plane of symmetry to a point, the distance between the poles of such pair(s) being greater than that between the flared poles, and the plane of symmetry of the pairs of poles being in the plane of the disc. Using this process and apparatus, magnetic discs with a non-magnetic metallic base are obtained, in which the anisotropic magnetic particles in the layer of fluid binder applied to the base are oriented tangentially to the circumference of the disc during spin-coating.
摘要翻译：用于制造磁盘的方法和装置，其中包含在有机粘合剂系统中的各向异性磁性颗粒的优选取向方向与盘的圆周相切。在磁性层凝固之前，通过在至少两对磁极之间的对称平面中形成的磁场的作用来实现取向，每对磁极具有相同的极性并且彼此相对。一对电极的横截面向着两对极之间的对称平面展开，而相反极性的另一对或两对磁极在横截面看时，朝向所述对称平面逐渐变细为一点。这些对的极之间的距离大于扩张的极之间的距离，并且磁极对的对称平面在盘的平面中。使用该方法和装置，获得具有非磁性金属基底的磁盘，其中施加到基底的流体粘合剂层中的各向异性磁性颗粒在旋转涂覆期间与盘的圆周相切地定向。

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