公开(公告)号：US3665484A

公开(公告)日：1972-05-23

申请号：US3665484D

申请日：1970-07-30

Applicant: INT COMPUTERS LTD

Inventor： FOSTER ALAN

IPC: G03G19/00 ,  G06K19/00 ,  G06K19/06 ,  G11B5/80

CPC classification number: G03G19/00

Abstract: A magnetic recording apparatus in which fixed information, which may be an outline of a business form, is recorded as a predetermined pattern on a magnetizable member. A magnetic recording member is separated from the magnetizable member by a screening member which includes a plurality of magnetic elements thereon. The magnetic elements are positioned on a backing layer and selectively prevent the magnetic field produced by the recording means from changing the magnetic state of the magnetizable member so that the predetermined pattern is recorded on the magnetizable member. The screening member may also include further small magnetic materials to increase the number of magnetic fringe fields which will allow a more uniform change of state of areas of the magnetizable member.

Abstract translation: 一种磁性记录装置，其中可以是商业形式的轮廓的固定信息作为预定图案记录在可磁化部件上。 磁记录部件通过在其上包括多个磁性元件的屏蔽部件与可磁化部件分离。 磁性元件位于背衬层上，并且选择性地防止由记录装置产生的磁场改变可磁化部件的磁状态，使得预定图案被记录在可磁化部件上。 遮蔽构件还可以包括另外的小磁性材料，以增加允许可磁化构件的区域的状态更均匀地改变的磁性边缘场的数量。

公开(公告)号：US3924170A

公开(公告)日：1975-12-02

申请号：US38431173

申请日：1973-07-31

Applicant: INT COMPUTERS LTD

Inventor： FOSTER ALAN

IPC: G05B19/23 ,  G05B13/00

CPC classification number: G05B19/234 ,  G05B2219/43006

Abstract: A servo control apparatus for controlling a paper tractor drive motor is described in which the current supply to the motor is controlled digitally so that for short movements a braking current is applied for the second half of the movement and for larger movements the braking current is applied at a predetermined distance before the required stopping point.

Abstract translation: 描述了一种用于控制纸张拖拉机驱动电动机的伺服控制装置，其中数字地控制对电动机的电流供给，使得对于较短的运动，对于运动的后半部分施加制动电流，并且对于较大的运动，施加制动电流 在所需停止点之前的预定距离处。