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1. 发明授权

US4084186A Detection system for detecting synchronism between television video signals emanating from different sources 失效
标题翻译：用于检测来自不同来源的电视视频信号之间的同步检测系统
公开(公告)号：US4084186A
公开(公告)日：1978-04-11
申请号：US683244
申请日：1976-05-04
申请人： Georges Labb
发明人： Georges Labb
IPC分类号： H04N5/275 , H04N7/02 , H04N5/04
CPC分类号： H04N5/275
摘要： In one of the channels, a trigger circuit 4 supplies for each synchronization pulse a pulse I.sub.0 of which the trailing edge F.sub.0 is staggered by T.sub.0 in relation to said synchronization pulse; in the other channel trigger circuits supply for each synchronization pulse a pulse I of which the beginning is staggered by T.sub.1 in relation to said synchronization pulse and of which the duration is 2.DELTA.t, .DELTA.t defining the permitted tolerance for synchronism. A further circuit detects the noncoincidences of an edge F.sub.0 with the presence of a pulse I.sub.1 and, in the absence of another detection, memorizes the last noncoincidence detected for a given time (at least equal to the image period for the 625 line CCIR standards).

2. 发明授权

US4553164A Spatial correction device for an image analyzer 失效
标题翻译：图像分析仪的空间校正装置
公开(公告)号：US4553164A
公开(公告)日：1985-11-12
申请号：US417592
申请日：1982-09-13
申请人： Georges Labb
发明人： Georges Labb
IPC分类号： H04N1/40 , G01B11/24 , G01B11/30 , H04N5/217 , H04N9/093 , H04N5/14
CPC分类号： H04N9/093 , H04N5/217
摘要： A spatial correction device for an image analyzer having an image restitution support medium and a device for scanning the support medium. A memory is provided for storing, for each of the MN rectangles resulting from dividing the image restitution support medium of the analyzer into a grid of M groups of L lines each and N columns, a predetermined correction signal. Also included is a sequencer for ensuring that the correction signals are properly applied as well as an interpolation device for calculating the intermediate values of the correction signals corresponding to each of the L lines of a given rectangle. This interpolation device also avoids the derivative ruptures of the correction signals during their transition between adjacent rectangles which are situated in the same column.
摘要翻译：一种用于具有图像恢复支持介质的图像分析器的空间校正装置和用于扫描支撑介质的装置。提供存储器，用于存储由将分析器的图像恢复支持介质划分成M组的L组每列和N列的网格中的每一个矩形，预定的校正信号。还包括用于确保正确应用校正信号的定序器以及用于计算与给定矩形的每个L行对应的校正信号的中间值的内插装置。该插值装置还避免了在它们位于同一列中的相邻矩形之间的过渡期间校正信号的导数破裂。

3. 发明授权

US4635117A Method and device for level correction for a television image 失效
标题翻译：用于电视图像的电平校正的方法和装置
公开(公告)号：US4635117A
公开(公告)日：1987-01-06
申请号：US608197
申请日：1984-05-08
申请人： Georges Labb
发明人： Georges Labb
IPC分类号： H04N5/21 , H04N9/093 , H04N9/28 , H04N5/14
CPC分类号： H04N9/28 , H04N9/093
摘要： The system performs a correction on the video frequency signal of a television image, for the purpose of avoiding level defects in the image. The method principally consists in defining a particular number of correction points in the image by division into a grid or lattice of horizontal and vertical strips or bands, in imparting to the divisions of this grid a smaller value towards the edges of the image than close to the center, in storing correction signals for each correction point during an acquisition procedure, and in correcting the video frequency signals relating to a correction point by using the correction signal stored for this point.
摘要翻译：为了避免图像中的电平缺陷，系统对电视图像的视频信号进行校正。该方法主要包括通过划分为水平和垂直条带或带的网格或格子来定义图像中的特定数量的校正点，以使该网格的分割赋予图像边缘更小的值，而不是接近于该中心在采集过程期间存储每个校正点的校正信号，并且通过使用为该点存储的校正信号来校正与校正点相关的视频信号。

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