公开(公告)号：US4705992A

公开(公告)日：1987-11-10

申请号：US800455

申请日：1985-11-21

Applicant: Dan N. Ciocan

Inventor： Dan N. Ciocan

IPC: H01J1/13 ,  H04N9/64 ,  H01J29/52

CPC classification number: H01J1/135 ,  H04N9/645

Abstract: A system for stabilizing the cathode emissions of an in-line gun cathode ray tube includes subsystems functionally identical to one another linked to each of the cathodes of an in-line gun cathode ray tube. During the time that the CRT beam is retracing vertically, each subsystem imposes a fixed, predetermined voltage on a cathode in the cathode ray tube, samples the current flowing to the cathode, compares the sampled current to a predetermined, desired reference current for the cathode, develops a differential signal representing the difference, if any, between the sampled current and the reference current, and then drives the current flowing to the cathode from its actual value to its predetermined, reference value so as to maintain a predetermined, desired ratio of the currents flowing to each of the cathodes.

Abstract translation: 用于稳定串联枪阴极射线管的阴极发射的系统包括在线枪式阴极射线管的每个阴极彼此功能相同的子系统。 在CRT光束垂直回溯的时间期间，每个子系统在阴极射线管的阴极上施加固定的预定电压，对流向阴极的电流进行采样，将采样的电流与预定的阴极参考电流进行比较 ，形成表示采样电流和参考电流之间的差值（如果有的话）的差分信号，然后将流过阴极的电流从其实际值驱动到其预定的参考值，以保持预定的期望比例 流向每个阴极的电流。

公开(公告)号：US4700218A

公开(公告)日：1987-10-13

申请号：US723032

申请日：1985-04-12

Applicant: Paul M. Thomsen ,  Dan N. Ciocan

Inventor： Paul M. Thomsen ,  Dan N. Ciocan

IPC: H04N17/04 ,  H04N9/73

CPC classification number: H04N17/04

Abstract: An automated system for adjustment of the white balance in a signal displayed on the screen of a color CRT includes a device attachable to the screen of a color CRT for detecting a first value for at least one of the following signal characteristics: Contrast, brightness, red/green/blue lowlights and red/green/blue highlights in a signal displayed on the screen; a mechanism for changing the first value to a second value within the control range of the CRT; a mechanism for detecting such a second value; a mechanism for storing at least one value within the control range of the CRT for at least one of the foregoing signal characteristics; a mechanism for recovering any such stored value; and a mechanism for conforming the value of one or more of such signal characteristics to a stored value.

Abstract translation: 用于调整显示在彩色CRT屏幕上的信号中的白平衡的自动化系统包括可连接到彩色CRT屏幕的装置，用于检测以下信号特征中的至少一个的第一值：对比度，亮度， 屏幕上显示的信号中的红/绿/蓝低光和红/绿/蓝亮点; 用于在CRT的控制范围内将第一值改变为第二值的机构; 用于检测这样的第二值的机构; 用于存储至少一个值在CRT的控制范围内用于上述信号特性中的至少一个的机构; 用于恢复任何这种存储值的机制; 以及用于使这些信号特性中的一个或多个的值与存储值一致的机构。