公开(公告)号：US4525751A

公开(公告)日：1985-06-25

申请号：US412185

申请日：1982-08-27

申请人： Edward J. Freeman ,  John E. Economou ,  John G. Pecorari ,  Gunter John ,  Jerome B. Halter ,  Jack E. James ,  Richard M. Castle ,  Richard C. Palmer

发明人： Edward J. Freeman ,  John E. Economou ,  John G. Pecorari ,  Gunter John ,  Jerome B. Halter ,  Jack E. James ,  Richard M. Castle ,  Richard C. Palmer

IPC分类号： G11B20/06 ,  G11B23/00 ,  H04N5/76 ,  H04N5/92 ,  G11B3/00

CPC分类号： H04N5/7605 ,  G11B20/06 ,  G11B23/0057 ,  H04N5/903

摘要： A video disc record of the constant angular velocity type (CAV) includes a spiral groove of constant pitch formed in a band on a surface thereof. The groove has a substantially constant nominal vertical dimension and vertical displacements which taper monotonically from an outer radius of the band to an inner radius. One component of the vertical displacement of the groove conveys an FM carrier wave of constant amplitude and relatively high frequency representative of picture information. A second component of the vertical displacement conveys one or more lower frequency FM carrier waves representative of sound information. The amplitude of the second component varies monotonically as a function of the groove radius within the record band to provide a disc having an improved audio FM carrier-to-noise ratio with no substantial perceptible increase in undesirable sound beat effects in images displayed when the disc is played. A mastering system exemplary of the method of forming the grooved disc includes variable gain units in an audio FM carrier wave processing path of the system.

摘要翻译： 恒定角速度型（CAV）的视盘记录包括在其表面上的带中形成的具有恒定螺距的螺旋槽。 凹槽具有基本恒定的标称垂直尺寸和从带的外半径到内半径单调渐缩的垂直位移。 凹槽的垂直位移的一个组成部分传送代表图像信息的恒定幅度和相对高频率的FM载波。 垂直位移的第二分量传送代表声音信息的一个或多个较低频率的FM载波。 第二组件的幅度随记录频带内的凹槽半径的函数而单调变化，以提供具有改进的音频FM载波噪声比的盘，而在盘上显示的图像中不期望的声音效果不会显着增加 玩了 形成沟槽盘的方法的示例性的母盘系统包括系统的音频FM载波处理路径中的可变增益单元。

公开(公告)号：US07667769B2

公开(公告)日：2010-02-23

申请号：US10889651

申请日：2004-07-12

申请人： Robert S. Gao ,  Edward J. Freeman ,  Kenneth L. Addy ,  Robert E. Lee

发明人： Robert S. Gao ,  Edward J. Freeman ,  Kenneth L. Addy ,  Robert E. Lee

IPC分类号： H04N5/225 ,  G03B17/00

CPC分类号： H04N5/225 ,  H01F38/14 ,  H01F2038/143

摘要： A rotatable wireless electrical coupler is disclosed that presents a wireless alternative to mechanical slip rings, such as are used in rotatable mechanical assemblies such as dome cameras. The rotatable wireless electrical coupler is designed to provide for the wireless transfer therethrough of electrical power, video and data signals. A rotatable multi-function transformer of the electrical coupler is designed primarily for the transfer of electrical power therethrough, and can also be used for the transfer of data signals. A rotatable electrical capacitor of the electrical coupler is designed primarily for the transfer of video data signals therethrough, and can also be used for the transfer of control and feedback data signals. In a dome camera, the rotatable wireless electrical coupler transfers power and data signals to and from a rotatable platform/section on which is mounted a video camera, pan and tilt motors and other associated electrical components.

摘要翻译： 公开了一种可旋转的无线电耦合器，其呈现机械滑环的无线替代物，例如用于可旋转的机械组件，例如球型照相机。 可旋转无线电耦合器被设计为提供电力，视频和数据信号的无线传输。 电耦合器的可旋转多功能变压器主要用于通过其传输电力，并且还可以用于数据信号的传送。 电耦合器的可旋转电容器主要用于通过其传输视频数据信号，并且还可用于传送控制和反馈数据信号。 在圆顶照相机中，可旋转的无线电耦合器将功率和数据信号传送到安装有摄像机，摇摄和倾斜电机以及其它相关联的电气部件的可旋转平台/部分。

公开(公告)号：US5396284A

公开(公告)日：1995-03-07

申请号：US110050

申请日：1993-08-20

申请人： Edward J. Freeman

发明人： Edward J. Freeman

IPC分类号： G06T7/20 ,  H04N7/18

CPC分类号： G06T7/2033

摘要： A system for detecting motion in a video image is provided wherein the video image is processed into a statistical array in which the array elements are derived from overlapping portions of the image. The elements of the statistical array are compared with corresponding array elements derived from an earlier image. The overlapping nature of the statistical array elements allows any detected changes in the image to be correlated with a portion of the image that is smaller than the area from which the statistical quantities are derived. Such spatial correlation of detected image changes is accomplished by thresholding and/or Boolean comparisons among the elements of the statistical array. A motion detection system in accordance with this invention can be used with a video multiplexing system so that motion can be detected at a plurality of remote locations.

摘要翻译： 提供了一种用于检测视频图像中的运动的系统，其中将视频图像处理成其中阵列元素从图像的重叠部分导出的统计数组。 将统计数组的元素与从早期图像导出的相应数组元素进行比较。 统计数组元素的重叠性质允许图像中的任何检测到的变化与图像的一部分小于从其导出统计量的区域相关联。 检测到的图像变化的这种空间相关性通过统计数组的元素之间的阈值和/或布尔比较来实现。 根据本发明的运动检测系统可以与视频复用系统一起使用，使得可以在多个远程位置检测运动。