专利检索 ap:("Joachim Hack" OR "Udo Himmelmann" OR "Peter Rudolf" OR "Klaus Schulze-Berge" OR "Karl-Heinz Meyer") AND inv:"Udo Himmelmann" 第 1 页

1.

发明授权
Magnetic disc, especially a flexible magnetic disc, for track adjustment and amplitude control 失效
标题翻译：磁盘，特别是柔性磁盘，用于跟踪调整和振幅控制

公开(公告)号：US4084201A

公开(公告)日：1978-04-11

申请号：US671385

申请日：1976-03-29

申请人： Joachim Hack , Udo Himmelmann , Peter Rudolf , Klaus Schulze-Berge , Karl-Heinz Meyer

发明人： Joachim Hack , Udo Himmelmann , Peter Rudolf , Klaus Schulze-Berge , Karl-Heinz Meyer

IPC分类号： G11B5/016 , G11B5/455 , G11B5/55 , G11B5/56 , G11B5/596 , G11B20/18 , G11B23/36 , G11B33/10 , G11B21/10

CPC分类号： G11B5/016 , G11B20/182 , G11B23/36 , G11B33/10 , G11B5/455 , G11B5/5534 , G11B5/56 , G11B5/596

摘要： The invention relates to a magnetic disc for track adjustment and amplitude control having at least one control track with magnetic control signals, this track being arranged in the central region of the recording area, and the control signals consisting of two different signals. The invention also relates to the geometric arrangement of the control signals in the track, their number, their amplitude, their frequency and their duration.