公开(公告)号：US3869714A

公开(公告)日：1975-03-04

申请号：US44986474

申请日：1974-03-11

Applicant: IBM

Inventor： SCHNEIDER RICHARD C ,  VIELE JR LAWRENCE

IPC: G11B5/09

CPC classification number: G11B5/09

Abstract: Discrete magnetization areas on a magnetizable medium are switched by a magnetic field formed by current pulses through a magnetic head winding having relatively slow leading edge risetimes. The current risetime may be derived from conventional voltage pulses by alternately gating positive and negative timing circuits which control current flow. Passive circuit elements may also control the leading and trailing edge timing.

Abstract translation: 可磁化介质上的离散磁化区域由电流脉冲形成的磁场切换通过具有相对较慢前沿时间的磁头绕组。 通过交替选通控制电流流动的正和负定时电路，可以从常规电压脉冲导出当前上升时间。 无源电路元件还可以控制前沿和后沿时序。