会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 111. 发明授权
    • Speed and direction indicator for video systems
    • 视频系统的速度和方向指示器
    • US3890462A
    • 1975-06-17
    • US46158674
    • 1974-04-17
    • BELL TELEPHONE LABOR INC
    • LIMB JOHN ORMONDMURPHY JOHN ARTHUR
    • G01S3/786G01S11/12H04N7/26H04N7/36H04N7/02
    • G01S11/12G01S3/7864H04N19/503H04N19/51H04N19/523
    • Apparatus is disclosed for measuring the speed and direction of subject movement between two video frames using only the video signal. Two selected differential signals are derived from the video signal. One of the differential signals is compared to a threshold to determine the presence of movement and the signs of the differential signals are compared to each other to find the direction of movement. Sums of each differential signal, in an area designated as moving, are accumulated over each video frame in accordance with the sign comparison between the two differential signals. At the end of each video frame, the sums are evaluated to ascertain the speed and to verify the direction of lateral movement. An embodiment of the invention uses this technique to measure only lateral subject movement. In another particularly advantageous embodiment, the same basic technique is extended to measure both horizontal and vertical movement. Individual signals indicative of horizontal and vertical movement are then combined to provide a resultant vectorial signal indicative of the complete subject movement that occurred.
    • 公开了用于仅使用视频信号来测量两个视频帧之间的被摄体移动的速度和方向的装置。 从视频信号导出两个选择的差分信号。 将差分信号中的一个与阈值进行比较以确定移动的存在,并且将差分信号的符号彼此进行比较以找到移动的方向。 根据两个差分信号之间的符号比较,在每个视频帧上累积在指定为移动的区域中的每个差分信号的和。 在每个视频帧结束时,评估总和以确定速度并验证横向运动的方向。 本发明的一个实施例使用这种技术来仅测量横向对象运动。 在另一个特别有利的实施例中,扩展了相同的基本技术以测量水平和垂直运动。 然后组合指示水平和垂直移动的各个信号以提供指示发生的完整的被摄体移动的合成矢量信号。
    • 113. 发明授权
    • Scanning system for yielding a three-dimensional display
    • 用于三维显示的扫描系统
    • US3705261A
    • 1972-12-05
    • US3705261D
    • 1970-04-09
    • SYMBIONICS INC
    • LANGLEY LAWRENCE W
    • A61B8/00G01N29/06G01S7/20H04N7/02
    • G01S7/20A61B8/00G01N29/0609G01N29/0618
    • A system for scanning an object and obtaining a threedimensional display of the features of the object is described. Internal discontinuities within the scanned object can be detected and visually displayed. The system includes a transmitting element which transmits energy to the object under investigation. The energy transmitted to the object can be of a form which will pass through the object, for example, ultrasonic waves to obtain a view of internal features. Energy passing through the object is reflected back to the surface through which it entered the object by discontinuities within the object. The reflected waves are received by the scanning device where they are divided into separate channels. The two channels individually process the received signals which are then used to actuate a read-out device such as an oscilloscope. The visual read-out from the oscilloscope is then photographed by use of a stereo camera and a three-dimensional picture is obtained.
    • 描述用于扫描对象并获得对象的特征的三维显示的系统。 可以检测和可视地显示扫描对象内的内部不连续性。 该系统包括向被调查物体传输能量的发射元件。 传递到物体的能量可以是通过物体的形式,例如超声波,以获得内部特征的视图。 穿过物体的能量被反射回到通过物体内的不连续进入物体的表面。 反射波被扫描装置接收,它们被分成独立的通道。 两个通道单独处理接收到的信号,然后用这些信号来驱动诸如示波器的读出装置。 然后通过使用立体相机拍摄来自示波器的视觉读出,并获得三维图像。
    • 115. 发明授权
    • Video multiplexer-switcher with sequence recycling upon loss of video
    • 视频多路复用器切换器,带有序列的视频回放
    • US3580998A
    • 1971-05-25
    • US3580998D
    • 1968-12-18
    • DIEBOLD INC
    • HAMMOND ROBERT APRESTA EUGENE A
    • H04N5/268H04N7/18H04N7/02H04N7/08
    • H04N7/181H04N5/268
    • A plurality of television cameras such as in a closed circuit television system for industrial plant security are provided with a monitoring system including a control module and a plurality of switching modules, one for each camera, and also a single monitoring means such as a television receiver or a video tape recorder or both, at which signals or pictures from the cameras appear sequentially. The monitoring system includes means for enabling the picture from the cameras to be displayed at the monitor successively each for a selected desired length of time; or for enabling any camera to be removed in effect from the system by pressing a button; or for enabling any selected camera to remain connected to the monitor continuously or for any desired period of time merely by the operation of pushbuttons. Flexibility is provided in the system by utilizing monostable regenerative circuits in each video switching module to determine the length of time the corresponding camera remains operatively connected to the monitor and by successively triggering successive switching modules so that a system may be assembled with any desired number of cameras and switching modules. A bistable regenerative circuit is employed in the control module as a clock. Loss of synchronization between the cameras by the monitor is avoided by switching at electronic speeds.