公开(公告)号：US3694678A

公开(公告)日：1972-09-26

申请号：US3694678D

申请日：1970-12-30

Applicant: INT COMPUTERS LTD

Inventor： SCARROTT GORDON GEORGE

IPC: H02K41/035 ,  H02K41/02

CPC classification number: H02K41/0356

Abstract: A moving coil linear motor is described having an annular nonmagnetic gap defined by an annular permanent magnet and a pair of pole pieces on the magnet, one pole piece having a circular aperture therethrough, the center of which is coaxial with the annular magnet. A hollow tubular coil is movably situated in the annular gap and coaxial therewith. One or both pole pieces have attached thereto a layer of material positioned in the annular gap, the material having a high electrical conductivity in a circumferential direction to provide a closed electrical path coaxial with the coil and having a high magnetic permeability in a radial direction. Composite material may be used in the form of alternate annular laminations of copper and iron.

Abstract translation: 描述了一种动圈式线性电动机，其具有由环形永磁体和磁铁上的一对极片限定的环形非磁性间隙，一个极片具有穿过其的圆形孔，其中心与环形磁体同轴。 中空管状线圈可移动地位于环形间隙中并与其同轴。 一个或两个磁极片连接有定位在环形间隙中的材料层，该材料在圆周方向上具有高导电性，以提供与线圈同轴并且在径向方向上具有高磁导率的闭合电路径。 复合材料可以以铜和铁的交替环形叠片的形式使用。

公开(公告)号：US3629830A

公开(公告)日：1971-12-21

申请号：US3629830D

申请日：1969-11-25

Applicant: INT COMPUTERS LTD

Inventor： SCARROTT GORDON GEORGE ,  MCCORMICK THOMAS M

IPC: G06K9/60

CPC classification number: G06K9/60 ,  G06K9/20 ,  G06K9/44

Abstract: A character recognition apparatus with a plurality of sensing devices arranged in a line for scanning elemental character areas in a direction perpendicular to the line. Scan signals are applied through corresponding preprocessing networks each of which includes horizontal and vertical center line detectors. The output of the detectors are combined in a gate which in turn produces a pulse whenever center lines are detected. The gate output pulse is held in a shift register with the contents of the shift register being examined by a logic circuit and decoder to determine whether a vertical portion of a character is being sensed with the decoder output being an outline of the character. The outline is then applied to a character recognition circuit. A white level detection circuit is provided to inhibit operation of the gate when blank paper is being sensed.

公开(公告)号：US3548115A

公开(公告)日：1970-12-15

申请号：US3548115D

申请日：1968-10-18

Applicant: INT COMPUTERS LTD

Inventor： SCARROTT GORDON GEORGE ,  TRUMAN NORMAN NATHAN

IPC: G11B5/127 ,  G11B5/17 ,  G11B5/12 ,  G11B5/20

CPC classification number: G11B5/127 ,  G11B5/1272 ,  G11B5/17