公开(公告)号：US4546382A

公开(公告)日：1985-10-08

申请号：US559459

申请日：1983-12-08

申请人： William J. McKenna ,  Kenneth W. Silvers ,  Rand B. Nickerson ,  Russell J. Welsh ,  Harold R. Walker ,  Joseph A. Cullity ,  Bohdan Stryzak

发明人： William J. McKenna ,  Kenneth W. Silvers ,  Rand B. Nickerson ,  Russell J. Welsh ,  Harold R. Walker ,  Joseph A. Cullity ,  Bohdan Stryzak

IPC分类号： G06Q30/02 ,  H04H1/00 ,  H04H60/32 ,  H04H60/43 ,  H04H60/94 ,  H04M11/00 ,  H04M11/08 ,  H04N7/173 ,  H04N17/00 ,  H04N21/258 ,  H04N21/442 ,  H04N21/81 ,  H04N7/02

CPC分类号： H04N7/17327 ,  G06Q30/02 ,  H04H60/32 ,  H04H60/33 ,  H04H60/40 ,  H04H60/43 ,  H04H60/94 ,  H04M11/002 ,  H04M11/085 ,  H04N21/25891 ,  H04N21/44222 ,  H04N21/812 ,  H04N2007/17381 ,  H04N2007/1739 ,  Y10S379/902 ,  Y10S379/91

摘要： A data gathering system includes a plurality of remote units which are controlled from a central location. Each of the remote units is attached to a television receiver which is generally but not necessarily attached to a cable system. Each of the remote units functions to determine which of several TV modes is in use as well as to store TV channel selector data and data from an optical input device. All this data is stored for later transmission by each of the remote units to a central data collecting point. A video message for a TV viewer, such as a survey, may be transmitted from the central location and stored at the remote units, for later display on the TV receiver associated with the remote units. Substitution of alternate programming information may also be achieved by the central control point on selected of the remote units.

摘要翻译： 数据采集​​系统包括从中心位置控制的多个远程单元。 每个远程单元附接到电视接收机，电视接收机通常但不一定附接到电缆系统。 每个远程单元用于确定几种TV模式中的哪一种正在使用以及从光输入设备存储TV频道选择器数据和数据。 所有这些数据被存储以供稍后由每个远程单元传输到中央数据收集点。 用于诸如调查的电视观看者的视频消息可以从中央位置发送并存储在远程单元处，以便稍后在与远程单元相关联的电视接收机上显示。 替代节目信息的替代也可以通过所选择的远程单元上的中央控制点来实现。

公开(公告)号：US4536792A

公开(公告)日：1985-08-20

申请号：US554843

申请日：1983-11-23

申请人： John H. Harshbarger

发明人： John H. Harshbarger

IPC分类号： H04N17/04 ,  H04N7/02

CPC分类号： H04N17/04

摘要： A method and apparatus for testing the geometry of a cathode ray tube raster scan under beam duty cycle variation. Alternate polarities of white on black and black on white images of a test pattern are displayed on the CRT screen, and the displacement of a reference point from one polarity to the other is measured to determine quantitatively the amount of displacement. Preferably, the pattern comprises a plurality of regularly arranged and spaced graphic elements, such as a bar, dot or dot grating pattern, wherein the pattern occupies a low percentage of the screen area. By alternately switching the polarity, the electron beam of the CRT undergoes wide swings in the amount of current it draws from the high voltage supply, and the amount of image displacement and size deviation can be readily measured.

摘要翻译： 一种用于在波束占空比变化下测试阴极射线管光栅扫描的几何形状的方法和装置。 在CRT屏幕上显示测试图案上的白色黑色和白色图像上的白色的交替极性，并且测量参考点从一种极性到另一种极性的位移以定量地确定位移量。 优选地，图案包括多个规则排列和间隔的图形元素，例如条形，点状或点状光栅图案，其中图案占据屏幕区域的低百分比。 通过交替切换极性，CRT的电子束以高电压供给的电流量发生大的波动，并且可以容易地测量图像位移量和尺寸偏差。

公开(公告)号：US4533944A

公开(公告)日：1985-08-06

申请号：US548112

申请日：1983-11-02

申请人： John E. Eby ,  Charles M. Kingston

发明人： John E. Eby ,  Charles M. Kingston

IPC分类号： G06F3/00 ,  H04N5/14 ,  H04N5/44 ,  H04N7/02 ,  H04N9/62

CPC分类号： H04N5/4448 ,  G06F3/002 ,  H04N5/14

摘要： A video processing system especially for use with microprocessors or microcomputers characterized by limited memory storage capacity and processing capability. The video processing system includes a TRANSITION DETECTOR for detecting BLACK-TO-WHITE and WHITE-TO-BLACK transitions in a video signal, from whatever source. The output of the TRANSITION DETECTOR is coupled to a FEATURE COUNTER so that the FEATURE COUNTER provides at a computer buss an output indicative of the number of such transitions occurring during a particular horizontal scanning period. An output of the FEATURE COUNTER drives a DECODER that selectively enables a plurality of FEATURE TIMERS, each of which has an input coupled to a CLOCK so that the FEATURE TIMERS provide an output indicative of the time duration between successive transitions in the video signal. The video processing system thereby makes available to the microcomputer the number and respective durations of transitions during a horizontal scanning period. At the end of each horizontal line, this data is transferred via the computer buss into memory and the FEATURE COUNTER and FEATURE TIMERS are reset in preparation for the subsequent line. This cycle is repeated until an entire video frame has been encoded and transferred to the microcomputer for processing as desired.

摘要翻译： 特别是与微处理器或微型计算机一起使用的视频处理系统，其特征在于存储器容量和处理能力有限。 视频处理系统包括用于从视频信号中检测BLACK-TO-WHITE和WHITE-TO-BLACK转换的TRANSITION DETECTOR，从任何来源。 TRANSITION DETECTOR的输出耦合到FEATURE COUNTER（特征计数器），使FEATURE COUNTER在计算机总线上提供指示在特定水平扫描周期内发生的这种转换次数的输出。 特征计数器的输出驱动解码器，其选择性地启用多个特征定时器，每个特征定时器具有耦合到时钟的输入，使得特征定时器提供指示视频信号中连续转换之间的持续时间的输出。 因此，视频处理系统使得在水平扫描周期期间可以向微型计算机提供数量和相应的转换持续时间。 在每条水平线的末端，该数据通过计算机总线传送到存储器中，并且特征计数器和特征定时器被复位以准备随后的行。 重复该循环，直到整个视频帧被编码并传送到微计算机以进行处理。

公开(公告)号：US4491868A

公开(公告)日：1985-01-01

申请号：US261280

申请日：1981-05-06

申请人： Lawrence F. Berridge, Jr. ,  Amir R. Novini

发明人： Lawrence F. Berridge, Jr. ,  Amir R. Novini

IPC分类号： G01B11/24 ,  G01M11/00 ,  H04N7/02 ,  H04N7/18

CPC分类号： G01M11/00

摘要： A video image compensator for inspection apparatus is presented for utilization in a system of the type in which an image of a workpiece is digitized and compared against stored data representing a workpiece of known acceptable quality. The invention compensates for instability, drift, and distortion inherently present in vidicons by providing a test pattern for periodic viewing by the vidicon, and providing therefrom data from which scale factors and image shift data can be generated. Subsequent live images of workpieces can then be scaled and shifted prior to correlation with the stored reference to compensate for instability, drift, and distortion of the vidicon. A mirror is used to alternately direct the field of view of the vidicon to either the test pattern or the workpiece target. In one embodiment, the mirror is made selectively transparent to allow the workpiece to be viewed, while in an alternate embodiment, the mirror is physically deflected from the vidicon's field of view.

摘要翻译： 提供了一种用于检查装置的视频图像补偿器，用于将工件的图像数字化并与存储的表示已知可接受质量的工件的数据进行比较的系统中。 本发明通过提供用于由视频体定期观看的测试图案来提供维度中固有地存在的不稳定性，漂移和失真，并从其中提供能够产生比例因子和图像偏移数据的数据。 然后可以在与所存储的参考相关之前缩放和移位工件的随后的实时图像，以补偿摄像机的不稳定性，漂移和失真。 反射镜用于交替地将视频的视场指向测试图案或工件目标。 在一个实施例中，反射镜被选择性地透明以允许观察工件，而在替代实施例中，反射镜在物理上偏离视频体的视场。

公开(公告)号：US4488648A

公开(公告)日：1984-12-18

申请号：US375644

申请日：1982-05-06

申请人： Mark P. Claypool

发明人： Mark P. Claypool

IPC分类号： G01B11/00 ,  G01B11/30 ,  G01N21/90 ,  G06T7/00 ,  B07C5/34 ,  H04N7/02

CPC分类号： G01N21/8851 ,  G01N21/9054 ,  G06T7/0006 ,  G06T2207/30164

摘要： Container flaws are detected by repetitively sampling the output of a photosensor at a controlled rate dependent on the speed of inspection. Samples are digitized and stored in memory on a first in, first out basis. First in (oldest) and last in (newest) samples are used to provide a sliding computation of the slope or rate of change of the photosensor output. The computed slope is compared to an empirically determined preselected number. Containers are rejected or accepted based on the results of the comparison.

摘要翻译： 通过根据检查速度以受控的速率重复地对光电传感器的输出进行采样来检测容器缺陷。 样品被数字化并以先进先出的方式存储在存储器中。 首先在（最旧的）和最后的（最新）样本中用于提供光电传感器输出的斜率或变化率的滑动计算。 将计算出的斜率与经验确定的预选数字进行比较。 根据比较结果，容器被拒绝或接受。

公开(公告)号：US4408337A

公开(公告)日：1983-10-04

申请号：US236631

申请日：1981-02-20

申请人： Luc Pham Van Cang

发明人： Luc Pham Van Cang

IPC分类号： H04N17/00 ,  H04N5/067 ,  H04N7/02

CPC分类号： H04N5/067

摘要： A television base signal and test signal generator comprises a first memory for storing n eight-bit words (n being a positive whole number) located by a pair of indices (i, j) and a second memory for storing t four-bit words (t being a positive whole number) located by an index k. A first counter and a second counter supply respectively the index i associated with the word to be read in the first memory and the index k associated with the word to be read in the second memory. The index j associated with the word to be read in the first memory corresponds to the value of the four-bit word supplied by the second memory. The two memories are programmed so that at all times the eight bits of the word read in the first memory define entirely the desired base signals and test signals.

摘要翻译： 电视基站信号和测试信号发生器包括用于存储由一对索引（i，j）定位的n个八位字（n为正整数）的第一存储器和用于存储t个四位字的第二存储器 t是一个正整数），由索引k定位。 第一计数器和第二计数器分别提供与要在第一存储器中读取的单词相关联的索引i和与在第二存储器中要读取的单词相关联的索引k。 与要在第一存储器中读取的字相关联的索引j对应于由第二存储器提供的四位字的值。 两个存储器被编程，使得在任何时候，在第一存储器中读取的字的八位完全限定了所需的基本信号和测试信号。

公开(公告)号：US4353091A

公开(公告)日：1982-10-05

申请号：US216862

申请日：1980-12-16

申请人： Karl-Heinz Hoppe

发明人： Karl-Heinz Hoppe

IPC分类号： H03K5/00 ,  H03K5/1252 ,  H04B1/10 ,  H04N5/08 ,  H04N5/213 ,  H04N7/02 ,  H03K5/18 ,  H04N5/04 ,  H04N7/04

CPC分类号： H03K5/00 ,  H03K5/1252 ,  H04B1/10 ,  H04N5/08 ,  H04N5/213

摘要： To obtain a switching signal whenever a fault occurs in the synchronization signals of a video signal, a fault detection circuit has a counter which receives the signals to be tested at its clock input and reference signals at its control input. The reference signals have the same pulse frequency as the signals to be tested and are obtained from the signals to be tested by a change in keying ratio. The output of the counter is connected in its "clear" input and also, via a monostable flip-flop, to an input from an OR-gate. The other input of the OR-gate receives the reference signals via a diode and an RC-link. The desired switching signal is obtained at the output of the OR-gate.

摘要翻译： 为了在视频信号的同步信号中发生故障时获得切换信号，故障检测电路具有在其时钟输入端接收要测试的信号的计数器和其控制输入端的参考信号。 参考信号具有与要测试的信号相同的脉冲频率，并且通过键控比的变化从要测试的信号获得。 计数器的输出连接在其“清零”输入端，并通过单稳态触发器连接到或门的输入。 OR门的另一个输入端通过二极管和RC链路接收参考信号。 在OR门的输出端获得所需的开关信号。

公开(公告)号：US4249197A

公开(公告)日：1981-02-03

申请号：US27555

申请日：1979-04-06

申请人： Jacobus A. A. J. van Spaandonk ,  Filippus L. Stok

发明人： Jacobus A. A. J. van Spaandonk ,  Filippus L. Stok

IPC分类号： H04N9/64 ,  H04N9/04 ,  H04N9/73 ,  H04N9/62 ,  H04N7/02

CPC分类号： H04N9/735

摘要： A television camera adjustment by means of a monitor picture is effected by forming a window area therein by means of which the camera operator directs the camera to a scene, the window area lines being used as an indication that an optimal adjustment has been achieved or as an indication for the operator that he must perform an adjustment procedure into one or into the other direction because it is not possible to obtain the optimal situation by means of surpassing a control range. With a color television camera the procedure can be used for a white balance adjustment combined in an advantageous manner with a black level adjustment.

摘要翻译： 借助于监视器图像进行的电视摄像机调整是通过在其中形成窗口区域来实现的，借助于该窗口区域，照相机操作者将相机操作者引导到场景，窗口区域线被用作已经实现最佳调节的指示或者 由于不可能通过超越控制范围获得最佳状态，操作人员必须执行调整程序为一个或另一个方向的指示。 使用彩色电视摄像机，该程序可以用于以有利的方式与黑色电平调整组合的白平衡调整。

公开(公告)号：US4170026A

公开(公告)日：1979-10-02

申请号：US906563

申请日：1978-05-16

申请人： Yoshitomi Nagaoka ,  Tetsuo Tomimoto ,  Reiichi Sasaki

发明人： Yoshitomi Nagaoka ,  Tetsuo Tomimoto ,  Reiichi Sasaki

IPC分类号： H04N5/10 ,  H04N7/087 ,  H04N7/02 ,  H04N5/48 ,  H04N9/535 ,  H04N9/62

CPC分类号： H04N7/087 ,  H04N5/10

摘要： Circuitry for line recognition of a television signal comprises a serration detector which receives the sync pulse and separates the portion of the serration of the vertical sync pulse; a first counter which is coupled to the serration detector and produces output pulse at specific time interval between two successive output pulses of the serration detector; a circuit which is triggered by the output pulse of the first counter and produces a pulse; a second counter which receives said pulse and the horizontal retrace pulse, counts said horizontal retrace pulse when said pulse has a specific level, becomes quiescent when said pulse has another specific level, and then produces the line identification pulse on the desired horizontal line; a first decoder which is connected to said second counter and produces the reset pulse for resetting said first counter after said first counter completes its desired counting action; and a second decorder which produces the reset pulse for resetting said circuit after said second counter produces desired line identification pulse.

公开(公告)号：US4135209A

公开(公告)日：1979-01-16

申请号：US774617

申请日：1977-03-04

申请人： Robert P. Logan

发明人： Robert P. Logan

IPC分类号： H04N5/44 ,  H04N7/02 ,  H04N9/62

CPC分类号： H04N5/44

摘要： Circuitry implementing at least two amplitude level detectors and a method for monitoring their ability to track rapid changes in signal level is shown. The monitoring circuit uses a delay network to provide an indication that the detectors have not been driven into conduction during a specific interval of time. If this operation persists, a resetting circuit discharges the detector output filter network, thereby allowing the detectors to re-establish an output indicative of the present input signal level. A commutating circuit is shown which allows a single delay network to be used in conjunction with at least two level detectors.

摘要翻译： 示出了实现至少两个幅度电平检测器的电路和用于监测其跟踪信号电平的快速变化的能力的方法。 监控电路使用延迟网络来提供在特定时间间隔期间检测器未被驱动进入导通的指示。 如果该操作仍然存在，则复位电路将检测器输出滤波器网络放电，从而允许检测器重新建立指示当前输入信号电平的输出。 示出了整流电路，其允许单个延迟网络与至少两个电平检测器结合使用。