公开(公告)号：US4547709A

公开(公告)日：1985-10-15

申请号：US335365

申请日：1981-12-29

Applicant: Jack G. French

Inventor： Jack G. French

IPC: G01S7/06 ,  G01R13/22 ,  G01S7/12 ,  G09G1/04 ,  H01J29/76 ,  H01J29/78

CPC classification number: H01J29/76 ,  G01R13/22 ,  G01S7/12

Abstract: A cathode ray tube display device having beam deflection coils (8,10,12,14) and means (44 and 46) for applying to inductive means (58 plus the coils) which includes the beam deflection coils a voltage for causing a ramp current to flow in the coils to produce progressive beam deflection, comprising means (52,54,56) for selectively modifying interconnections between the coils to change the inductance presented to the voltage applying means and thus change the gradient of the ramp current and the rate of beam deflection, said interconnection modifying means being operable to change the number of deflection coils through which said current flows.

Abstract translation: 一种具有光束偏转线圈（8,10,12,14）和用于施加到电感装置（58加上线圈）的装置（44和46）的阴极射线管显示装置，其包括光束偏转线圈，用于产生斜坡电流 在线圈中流动以产生渐进的光束偏转，包括用于选择性地修改线圈之间的互连的装置（52,54,56），以改变呈现给电压施加装置的电感，并因此改变斜坡电流的梯度和 所述互连修改装置可操作以改变所述电流流过的偏转线圈的数量。