公开(公告)号：US4528605A

公开(公告)日：1985-07-09

申请号：US465466

申请日：1983-02-10

申请人： Seisuke Hiraguri

发明人： Seisuke Hiraguri

IPC分类号： G11B5/592 ,  G11B5/58

CPC分类号： G11B5/5922

摘要： A rotary magnetic head scanning control system in a magnetic recording and reproducing apparatus comprising a plurality of rotary magnetic heads and a head height position control mechanism, comprises a pilot signal generating circuit for generating a pilot signal during a recording mode, a circuit for controlling interruption of application of the pilot signal and a recording signal to each of the rotary magnetic heads, so that the pilot signal is supplied to one of the rotary magnetic heads together with the recording signal for a predetermined interval to record the pilot signal and the recording signal and thereafter interrupt application of the recording signal to the one rotary magnetic head to put the one rotary magnetic head into a reproducing state, and application of a recording signal to another rotary magnetic head is interrupted during a predetermined interval in which the other rotary magnetic head scans over a track part adjacent to a track part recorded with the pilot signal of a recorded track formed by the one rotary magnetic head to put the other rotary magnetic head in a reproducing state and thereafter supply the pilot signal to the other rotary magnetic head together with the recording signal for a predetermined interval to record the pilot signal and the recording signal, and a circuit for obtaining a control signal to be applied to the head height position control mechanism from the pilot signal reproduced as crosstalk from a track part adjacent to a scanning track, to apply the control signal thus obtained to the head height position control means and control the height positions of each of the rotary magnetic heads to become the same.

摘要翻译： 一种包括多个旋转磁头和磁头高度位置控制机构的磁记录和再现装置中的旋转磁头扫描控制系统，包括用于在记录模式期间产生导频信号的导频信号产生电路，用于控制中断的电路 将导频信号和记录信号施加到每个旋转磁头，使得导频信号与记录信号一起提供给一个旋转磁头一定的间隔，以记录导频信号和记录信号 然后将记录信号中断到一个旋转磁头，将一个旋转磁头放入再现状态，并且在另一个旋转磁头的预定间隔内将记录信号施加到另一旋转磁头被中断 扫描与跟飞行员记录的轨道部分相邻的轨道部分 点燃由一个旋转磁头形成的记录轨道，以将另一个旋转磁头放置在再现状态，然后将该导频信号与记录信号一起以预定间隔提供给另一个旋转磁头，以记录导频信号， 记录信号和用于从与扫描轨道相邻的轨道部分作为串扰再现的导频信号获得要施加到磁头高度位置控制机构的控制信号的电路，以将由此获得的控制信号应用于磁头高度 位置控制装置并且控制每个旋转磁头的高度位置变得相同。