公开(公告)号：US06768520B1

公开(公告)日：2004-07-27

申请号：US09529922

申请日：2000-04-20

申请人： Gérard Rilly ,  Hossein Ahmari ,  Hans Guenter Bicheler ,  Stefan Kimmelmann

发明人： Gérard Rilly ,  Hossein Ahmari ,  Hans Guenter Bicheler ,  Stefan Kimmelmann

IPC分类号： H04N563

CPC分类号： H04N5/57

摘要： In computer monitors having a picture tube, it may be seen that a small white picture area is displayed with the same white value as a large white picture area. If it were intended to achieve the same result for a television receiver with a picture tube, a voltage supply is necessary in which the power is permitted to fluctuate between 60 and 300 watts given a stable output voltage. On account of the lower luminous efficiency, this effect would have considerably intensified repercussions on the power consumption of plasma screens. The invention is based on the object of providing a simplified method for regulating the picture power in a television receiver. The method according to the invention is distinguished by the following steps. The power consumption of the picture power is obtained by the video voltage R, G, B. The video voltage is converted into an information item which is then a measure of the picture power. This information item is subsequently fed to two regulating loops. In the fast loop, the value of the picture power in a short period of time is averaged. The fast loop, that is to say the fast regulation, ensures fast falling of the amplitude of the picture power for the case where a large number of lines are displayed completely white. This serves to ensure that the power consumption, which is defined beforehand, is not exceeded.

摘要翻译： 在具有显像管的计算机监视器中，可以看出，与白色图像区域相同的白色值显示小的白色图像区域。 如果要对具有显像管的电视接收机实现相同的结果，则在给定稳定的输出电压的情况下，需要允许功率在60至300瓦之间波动的电压源。由于较低的发光效率， 这种效应将对等离子体屏幕的功耗产生相当大的影响。本发明的目的是提供一种用于调节电视接收机中的图像功率的简化方法。根据本发明的方法通过以下步骤来区分。 图像功率的功耗由视频电压R，G，B获得。视频电压被转换为信息项，然后是图像功率的度量。 该信息项随后被馈送到两个调节回路。 在快速循环中，在短时间内对图像功率的值进行平均。 快速循环，即快速调节，确保了大量行显示完全白色的情况下图像功率的幅度的快速下降。 这用于确保不超过预先定义的功耗。

公开(公告)号：US06188435B1

公开(公告)日：2001-02-13

申请号：US09034698

申请日：1998-03-04

申请人： Hossein Ahmari ,  Gerard Rilly

发明人： Hossein Ahmari ,  Gerard Rilly

IPC分类号： H04N568

CPC分类号： H04N9/645

摘要： A circuit for controlling beam current in a picture tube, which circuit calculates current pictures for the R, G, B beam currents in the picture tube, which largely correspond to real beam currents in the color picture tube. The circuit comprises a comparator/integrator which compares a sum of these current pictures with a beam current information item for the purpose of controlling the R, G, B beam currents and/or the picture sharpness. Gamma correction is carried out in the circuit. The circuit may be of analog or digital construction and may advantageously be integrated in a video processor IC. The present circuit is particularly applicable for television sets or computer monitors.

摘要翻译： 用于控制显像管中的光束电流的电路，该电路计算显像管中的R，G，B束电流的当前图像，其大体上对应于彩色显像管中的实际光束电流。 该电路包括比较器/积分器，用于将这些当前图像的和与波束电流信息项进行比较，以便控制R，G，B波束电流和/或图像清晰度。 伽马校正在电路中进行。 电路可以是模拟或数字结构，并且可以有利地集成在视频处理器IC中。 本电路特别适用于电视机或电脑显示器。

公开(公告)号：US4706115A

公开(公告)日：1987-11-10

申请号：US840163

申请日：1986-03-17

申请人： Joseph Colineau ,  Hossein Ahmari

发明人： Joseph Colineau ,  Hossein Ahmari

IPC分类号： H04N3/22 ,  H04N9/28 ,  H04N9/31 ,  H04N17/04 ,  H01J29/70 ,  H04N3/233 ,  H04N9/18

CPC分类号： H04N3/22 ,  H04N9/28 ,  H04N9/31

摘要： A geometry adjustment device for a color video projector having three monochrome tubes each projecting an image of a given color on a screen, comprising a geometry correction circuit adjustable by the user for providing, by acting on a single signal, vertical amplitude, vertical linearity and horizontal trapezoid corrections of the images projected on the screen by the tubes.

摘要翻译： 一种用于彩色投影仪的几何调整装置，具有三个单色管，每个单色管在屏幕上投射给定颜色的图像，包括可由用户调节的几何校正电路，通过作用在单个信号上提供垂直幅度垂直线性度， 通过管子投影在屏幕上的图像的水平梯形校正。

公开(公告)号：US4816908A

公开(公告)日：1989-03-28

申请号：US840275

申请日：1986-03-17

申请人： Joseph Colineau ,  Hossein Ahmari

发明人： Joseph Colineau ,  Hossein Ahmari

IPC分类号： H04N3/22 ,  H04N9/28 ,  H04N9/31 ,  H04N17/04

CPC分类号： H04N3/22 ,  H04N9/28 ,  H04N9/31

摘要： A convergence adjustment device for color video-projectors having three monochrome tubes, each projecting an image of a give color on a screen. This device acts on the scanning of the second and third tubes for superimposing, on the screen, their images on that of the first tube. This device is of the digital type. It comprises a RAM in which correction values are stored corresponding to correction of the scanning currents for the different zones into which the image is divided. These values are restored in synchronism with the scanning of the zones during normal operation. The device also comprises a microprocessor for modifying, during the adjustment phase, the stored values as a function of the ordes issued by the user who makes this adjustment by observing the image. The user's actions in a manual mode affect only a single one of the zones. In an automatic mode, adjustments are effective on groups of zones.

摘要翻译： 一种用于具有三个单色管的彩色视频投影仪的会聚调节装置，每个投影机在屏幕上投射一种给予颜色的图像。 该装置作用于第二和第三管的扫描，用于将其图像叠加在第一管的屏幕上。 该设备是数字式的。 它包括RAM，其中对应于针对图像被划分的不同区域的扫描电流的校正来存储校正值。 这些值在正常操作期间与区域的扫描同步地恢复。 该装置还包括微处理器，用于在调整阶段期间根据通过观察该图像进行该调整的用户发出的ordes的函数来修改所存储的值。 用户在手动模式下的操作仅影响一个区域。 在自动模式下，调整对区域组有效。