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1. 发明授权

US3989888A Horizontal and vertical soft edge video transition system with edge compression 失效
标题翻译：水平和垂直软边缘视频转换系统，边缘压缩
公开(公告)号：US3989888A
公开(公告)日：1976-11-02
申请号：US604621
申请日：1975-08-14
申请人： Albert E. Busch , John R. Hotsenpiller , James V. Redding
发明人： Albert E. Busch , John R. Hotsenpiller , James V. Redding
IPC分类号： H04N5/262 , H04N5/22
CPC分类号： H04N5/2622
摘要： A digital soft edge transition system for use in conjunction with a video special effects generator utilizes digital circuitry responsive to a transition signal for switching either a first video input signal or a second video input signal into a composite video output signal. An analog video switch controlled by an analog ramp generator is utilized to provide a gradual transition between the video input signals. The gradient of the transition is determined by the time constant of the charging circuit in the ramp generator which is controlled by a digital border size control circuit. The digital border size control circuit includes circuitry responsive to the distance between the border and the edge of the viewing screen for gradually reducing the width of the border as the transition approaches the edge of the screen to prevent the abrupt disappearance of the border that usually occurs in digital soft edge generators when the transition approaches the edge of the screen.
摘要翻译：与视频特效发生器一起使用的数字软边缘转换系统利用响应于转换信号的数字电路将第一视频输入信号或第二视频输入信号切换为复合视频输出信号。由模拟斜坡发生器控制的模拟视频开关用于提供视频输入信号之间的逐渐转变。转换梯度由斜坡发生器中的充电电路的时间常数决定，其由数字边界尺寸控制电路控制。数字边框尺寸控制电路包括响应于边界与观看屏幕边缘之间的距离的电路，用于随着接近屏幕边缘逐渐减小边框的宽度，以防止通常发生的边界的突然消失在转换接近屏幕边缘的数字软边缘发生器中。

2. 发明授权

US3941925A Digital soft edge video transition system 失效
标题翻译：数字软边缘视频转换系统
公开(公告)号：US3941925A
公开(公告)日：1976-03-02
申请号：US557067
申请日：1975-03-10
申请人： Albert E. Busch , John R. Hotsenpiller
发明人： Albert E. Busch , John R. Hotsenpiller
IPC分类号： H03K3/027 , H04N5/262 , H04N5/275 , H04N5/22
CPC分类号： H03K3/027 , H04N5/262 , H04N5/2622 , H04N5/275
摘要： A digital soft edge transition system for use in a video special effects generator utilizes digital circuitry responsive to a transition signal for switching either a first video input signal or a second video input signal into a composite video output signal. An analog video switch is utilized to provide a gradual transition between the video input signals. The gradient of the transition is determined by a counter and a variable speed clock, driving a digital-to-analog converter, or by a data selector interposed between the counter and the digital-to-analog converter. A "mirror image" circuit is utilized to generate symmetrical effects such as circles, diamonds and other effects requiring more than one transition between the video input signals. The "mirror image" circuit serves to store the location of the completion of the first transition and to begin the second transition at a location on the displayed image determined by the value of the stored location. In the preferred embodiment, the locations of the completion of the first transition and the beginning of the second transition are symmetrically disposed about a center line of the displayed image so that the desired effect is symmetrically displayed on the viewing screen.
摘要翻译：用于视频特效发生器的数字软边缘转换系统利用响应于转换信号的数字电路，用于将第一视频输入信号或第二视频输入信号切换为复合视频输出信号。模拟视频开关用于提供视频输入信号之间的逐渐转换。转换的梯度由计数器和可变速度时钟，驱动数模转换器或插入在计数器和数模转换器之间的数据选择器确定。利用“镜像”电路来产生对称的效果，如圆形，菱形和其他影响，需要视频输入信号之间的多个转换。 “镜像”电路用于存储第一转换完成的位置，并且在由存储的位置的值确定的显示图像上的位置处开始第二转换。在优选实施例中，第一转变的完成位置和第二转换开始的位置围绕所显示的图像的中心线对称设置，使得期望的效果对称地显示在观看屏幕上。

3. 发明授权

US4004646A Weighing system 失效
标题翻译：称重系统
公开(公告)号：US4004646A
公开(公告)日：1977-01-25
申请号：US633634
申请日：1975-11-20
申请人： Albert E. Busch
发明人： Albert E. Busch
IPC分类号： G01G7/04 , G01G7/02 , G01G23/37
CPC分类号： G01G7/04
摘要： A weighing table is physically connected to the core of a solenoid. The time required for the current flow to build up to a value sufficient to move the core and raise the weight on the table is measured and serves as a measure of such weight. The solenoid is periodically energized through a constant voltage source and correspondingly an associated counter circuit is energized to initiate a time count and when the solenoid is de-energized the counter circuit is reset to zero. The time indicated by the counter circuit is a measure of the weight.
摘要翻译：称重台物理连接到螺线管的核心。测量当前流量建立到足以移动核心并提高重量的值所需的时间，并作为此类重量的度量。螺线管通过恒定电压源周期性地通电，相应的相关联的计数器电路被激励以启动时间计数，并且当螺线管断电时，计数器电路被复位到零。计数器电路指示的时间是衡量重量。

4. 发明授权

US3962536A Digital rotary special effects generator 失效
标题翻译：数字旋转特效发生器
公开(公告)号：US3962536A
公开(公告)日：1976-06-08
申请号：US344094
申请日：1973-03-23
申请人： Albert E. Busch
发明人： Albert E. Busch
IPC分类号： G06T3/60 , H04N5/265 , H04N5/22
CPC分类号： H04N5/265 , G06T3/60
摘要： An improved special effects generator for television uses digital logic to achieve "windshield wiper," "propeller," and other similar rotational special effects. The generator is supplied with a number whose magnitude is proportional to the angular rotation of the desired special effect. Digital logic circuitry is used to compute the co-tangent of this number, to compute the product of this co-tangent with the Y-coordinate of each image point, and to compare the resulting product with the X-coordinate of each image point. The result of this comparison then signals whether each image point is derived from a first incoming video signal or from a second incoming video signal. Additional digital logic permits "fan" and "clock-hand" wipe effects to be achieved.
摘要翻译：改进的电视特效发生器使用数字逻辑来实现“挡风玻璃刮水器”，“螺旋桨”等旋转特效。发电机的数量与所需的特殊效果的角度旋转成正比。数字逻辑电路用于计算该数字的共同切线，以计算该共切线与每个图像点的Y坐标的乘积，并将得到的乘积与每个图像点的X坐标进行比较。该比较的结果然后发信号通知每个图像点是从第一输入视频信号还是从第二输入视频信号导出。额外的数字逻辑允许实现“风扇”和“时钟”擦拭效果。

5. 发明授权

US3944731A Video special effects generator 失效
标题翻译：视频特效发生器
公开(公告)号：US3944731A
公开(公告)日：1976-03-16
申请号：US554715
申请日：1975-03-03
申请人： Albert E. Busch
发明人： Albert E. Busch
IPC分类号： H04N5/265 , H04N5/22
CPC分类号： H04N5/265
摘要： A digital special effects generator combines two or more video signals under the control of a control lever or programmable hardware. Forward and reverse horizontal, vertical and corner wipes as well as a QUAD effect where four video signals may be simultaneously displayed are among the effects obtainable. An improved analog-to-digital converter is utilized to generate a digital signal representative of the position of the control lever, and a digital quantizer is used in conjunction with the analog-to-digital converter to eliminate jitter in the digital signal. The transition between video signals is controlled by comparing the digital lever position representative signal with a digital signal representative of the scanning beam position, and providing a video transition signal when a predetermined relationship between the two digital signals is reached. Border video switching circuitry utilizing a digital counter to control border width is used to generate a variable width, variable pattern border between the video displays.
摘要翻译：数字特效发生器在控制杆或可编程硬件的控制下组合两个或更多个视频信号。可以同时显示四个视频信号的正向和反向水平，垂直和角落擦拭以及QUAD效果是可获得的效果。改进的模数转换器用于产生代表控制杆的位置的数字信号，数字量化器与模数转换器结合使用以消除数字信号中的抖动。视频信号之间的转换通过将数字控制杆位置代表信号与表示扫描光束位置的数字信号进行比较来控制，并且当达到两个数字信号之间的预定关系时提供视频转换信号。使用利用数字计数器来控制边界宽度的边界视频切换电路用于在视频显示器之间产生可变宽度，可变图案边界。

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