公开(公告)号：US3719889A

公开(公告)日：1973-03-06

申请号：US3719889D

申请日：1971-12-14

Applicant: US AIR FORCE

Inventor： BELZ R ,  KALB H ,  TROLINGER J

IPC: G01J11/00 ,  G04F10/04 ,  G04G9/10 ,  H01S3/00 ,  G04F9/00 ,  G04F11/06 ,  H01J39/12

CPC classification number: H01S3/0014 ,  G01J11/00 ,  G04F10/04 ,  G04G9/10

Abstract: Pulses from a laser pulse train are detected and square wave shaped to trigger a first flip-flop in which one complementary output activating one input of a display comprising an array of light emitting diodes while the other output triggers a NOR gate and a second flip-flop, one complementary output thereof feeding a second input of the display with the other complementary output feeding the NOR gate which then feeds back to inhibit the first flip-flop. The square wave also activates a third flip-flop with one cpmplementary output thereof enabling a NOR gate for passing clock pulses which are decade divided and displayed on light emitting diode arrays. The other output of the third flip-flop feeds a pair of cross coupled NOR gates acting as a flip-flop, the output thereof being fed back to inhibit the third flipflop.

Abstract translation: 来自激光脉冲串的脉冲被检测和方波形以触发第一触发器，其中一个互补输出激活包括发光二极管阵列的显示器的一个输入，而另一个输出触发NOR门和第二触发器， 触发器，其一个互补输出端将显示器的第二输入端与馈送NOR门的另一个互补输出端进行反馈，该门极反馈以禁止第一触发器。 方波还激活具有一个互补输出的第三触发器，其使得NOR门能够传递在发光二极管阵列上被十分分割和显示的时钟脉冲。 第三触发器的另一输出端提供一对用作触发器的交叉耦合的或非门，其输出被反馈以禁止第三触发器。