公开(公告)号：US3506923A

公开(公告)日：1970-04-14

申请号：US3506923D

申请日：1967-01-12

Applicant: IBM

Inventor： AMBRICO LOUIS E ,  FIORINO BENJAMIN C

IPC: H03M5/12 ,  G11B20/14 ,  H03M7/04 ,  H04L7/00 ,  H04L7/033 ,  H04L25/49 ,  H03K13/00

CPC classification number: H04L25/4904 ,  G11B20/1419 ,  H04L7/0332

公开(公告)号：US3657716A

公开(公告)日：1972-04-18

申请号：US3657716D

申请日：1970-06-15

Applicant: IBM

Inventor： AMBRICO LOUIS E

IPC: G09G1/10 ,  G06F3/14

CPC classification number: G09G1/10

Abstract: A character generator for a cathode ray tube display device generates X and Y deflection potentials and intensity control signals for the cathode ray tube by utilizing a separate storage matrix for each character with the storage elements in each such matrix being disposed where, and only where, a change is required in the direction of the X deflection, a change in the direction of the Y deflection, or a change in the intensity control signal, thereby to reduce the number of storage elements required in the storage matrices for the characters. Control signals from a selected storage matrix operate bistable storage devices which in turn operate gates to supply timing pulses to an up-down X counter and an up-down Y counter which count in either direction and convert digital quantities to analogue quantities thereby to control the vertical and horizontal deflection of the electron beam of the cathode ray tube to generate a character.

Abstract translation: 用于阴极射线管显示装置的字符发生器通过为每个字符利用单独的存储矩阵来产生用于阴极射线管的X和Y偏转电位和强度控制信号，每个这样的矩阵中的存储元件被设置在哪里， 需要在X偏转的方向，Y偏转方向的变化或强度控制信号的变化方面发生变化，从而减少用于字符的存储矩阵中所需的存储元件的数量。 来自所选择的存储矩阵的控制信号操作双稳态存储器件，这两个存储器件进而操作门以向定时脉冲提供定时脉冲到上行X计数器和向上计数的Y计数器，该计数器在任一方向上计数，并将数字量转换为模拟量，从而控制 阴极射线管的电子束的垂直和水平偏转产生一个字符。

公开(公告)号：US3503059A

公开(公告)日：1970-03-24

申请号：US3503059D

申请日：1967-03-22

Applicant: IBM

Inventor： AMBRICO LOUIS E

IPC: G11B20/10 ,  G11B5/00

CPC classification number: G11B20/10194