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公开(公告)号：US4605008A
公开(公告)日：1986-08-12
申请号：US667380
申请日：1984-11-01
申请人： Leonard A. Ferrari
发明人： Leonard A. Ferrari
CPC分类号： G01S15/8954 , A61B8/06
摘要： A method and apparatus is disclosed which improves the image quality obtained in a system for displaying frequency demodulated acoustic images of an object. A squelch signal is added to the input of a frequency demodulator. When the "echo signal" represents merely high frequency noise input to the demodulator, the squelch signal overrides the noise. A uniform level is thereby provided to the image display devices of the system which substantially improves output image quality.
摘要翻译： 公开了一种提高在用于显示对象的频率解调声学图像的系统中获得的图像质量的方法和装置。 一个静噪信号被加到频率解调器的输入端。 当“回波信号”仅代表输入到解调器的高频噪声时，该静噪信号将覆盖噪声。 由此，能够将系统的图像显示装置均匀化，从而大大提高输出图像质量。
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公开(公告)号：US4569353A
公开(公告)日：1986-02-11
申请号：US384554
申请日：1982-06-03
申请人： Leonard A. Ferrari
发明人： Leonard A. Ferrari
摘要： A system determines the attenuation of sound in a media supporting acoustic pulse propogation. The system includes a pulse circuit generating a reference pulse, which is then transformed into an ultrasonic acoustic pressure signal by a transducer. The transducer projects the pressure signal against the media and receives acoustic pressure signals reflected therefrom in response to the projected signal. A delay circuit, coupled to the pulse circuit generates a delayed pulse with an adjustable delay relative to the reference pulse. The duration of the delayed pulse defines a reference frame to examine reflected acoustic pressure signals reflected from a depth in the media defined by the delay of the pulse. A frequency circuit counts the number of zero crossings in the reflected acoustic pressure signal during the interval defined by the duration of the delayed pulse and determines the mean frequency of those reflections at the depth defined by the delay. The attenuation is proportional to the slope of a line fit to an arbitrary number of mean frequencies plotted against the depths corresponding thereto.
摘要翻译： 系统确定支持声脉冲传播的介质中声音的衰减。 该系统包括产生参考脉冲的脉冲电路，然后通过换能器转换成超声波声压信号。 换能器将压力信号投影到介质上并响应于投影信号接收从其反射的声压信号。 耦合到脉冲电路的延迟电路产生相对于参考脉冲具有可调延迟的延迟脉冲。 延迟脉冲的持续时间定义参考帧，以检查从由脉冲延迟定义的介质中的深度反射的反射声压信号。 在由延迟脉冲的持续时间限定的间隔期间，频率电路对反射声压信号中的过零点数进行计数，并确定由延迟限定的深度处的那些反射的平均频率。 衰减与拟合到任意数量的平均频率的线的斜率相对于与其对应的深度绘制成比例。
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公开(公告)号：US3967888A
公开(公告)日：1976-07-06
申请号：US89323
申请日：1970-11-13
IPC分类号： G03B41/10
CPC分类号： G03B41/10
摘要： Image display from a continuously moving image carrier with the aid of a repeatedly advanced and reset optical compensator is improved by omitting the traditional compensator bias spring and resetting the compensator with electric power pulse doublets. A substantially constant driving torque may be provided for the compensator in proportion to a damping term of the compensator equation of motion. An electric bias may alternatively or additionally be provided for biasing the compensator during image display against the direction of advance motion. Decelerating power may selectively be applied to the compensator to prevent or correct overshooting in the advance direction.
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公开(公告)号：US3977623A
公开(公告)日：1976-08-31
申请号：US542782
申请日：1975-01-21
摘要： A system for initiating operating mode change in a film handling apparatus in response to cessation of film movement incident to an end-of-film condition.
摘要翻译： 一种用于在胶片处理装置中启动操作模式改变的系统，其响应于胶片运动停止而进入到胶片末端状态。
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公开(公告)号：US3968506A
公开(公告)日：1976-07-06
申请号：US316604
申请日：1972-12-19
IPC分类号： G03B41/10
CPC分类号： G03B41/10
摘要： Image display from a continuously moving image carrier with the aid of a repeatedly advanced and reset optical compensator is improved by omitting the traditional compensator bias spring and resetting the compensator with electric power pulse doublets. A substantially constant driving torque may be provided for the compensator in proportion to a damping term of the compensator equation of motion. An electric bias may alternatively or additionally be provided for biasing the compensator during image display against the direction of advance motion. Decelerating power may selectively be applied to the compensator to prevent or correct overshooting in the advance direction.
摘要翻译： 借助于反复高级和复位的光学补偿器，连续运动的图像载体的图像显示通过省略传统的补偿偏置弹簧和用电力脉冲双重复位补偿器来改进。 与补偿器运动方程的阻尼项成比例，可以为补偿器提供基本恒定的驱动转矩。 可以替代地或另外地提供电偏压用于在针对前进运动的方向的图像显示期间偏置补偿器。 可以选择性地将减速功率施加到补偿器，以防止或改正在提前方向上的过冲。
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公开(公告)号：US3944728A
公开(公告)日：1976-03-16
申请号：US531408
申请日：1974-12-10
申请人： Leonard A. Ferrari
发明人： Leonard A. Ferrari
摘要： Methods and apparatus for recording and subsequently reproducing video information at a display scan rate record image fields or other video signal quanta on a recording medium at a first relative recording medium velocity and in accordance with a predetermined arithmetic progression. The recorded image fields or other video signal quanta are reproduced at a second relative velocity being higher than the first velocity so that the reproduced video signal quanta are synchronized at the display scan rate. The reproduction of recorded image field or video signal quanta is repeated in the same reproducing operation at the second relative velocity. The repeated reproduction of any recorded image field or other video signal quantum in the same reproducing operation is completed before commencement of the reproduction of any recorded image field or other video signal quantum whose number in the predetermined arithmetic progression occurs more than one term after the number of the particular image field or other video signal quantum. Each occurring image field or other video signal quantum may be recorded by this method or apparatus. On the other hand, skip field techniques may be realized by the methods and apparatus of the subject invention.
摘要翻译： 用于以显示扫描速率记录和随后再现以第一相对记录介质速度记录图像场或记录介质上的其他视频信号量子的方法和装置，并且根据预定的算术级数。 记录的图像场或其他视频信号量子以比第一速度高的第二相对速度再现，使得再现的视频信号量子以显示扫描速率同步。 在相同的再现操作中以第二相对速度重复记录的图像场或视频信号量子的再现。 任何记录图像场或其他视频信号量子在相同再现操作中的重复再现在开始再现任何记录图像场或其他视频信号量子之前完成，其中预定算术级数中的数字出现在数字之后多于一个项 的特定图像场或其他视频信号量子。 每个出现的图像场或其他视频信号量子可以由该方法或装置记录。 另一方面，可以通过本发明的方法和装置来实现跳过技术。
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公开(公告)号：US4543826A
公开(公告)日：1985-10-01
申请号：US384553
申请日：1982-06-03
申请人： Leonard A. Ferrari
发明人： Leonard A. Ferrari
CPC分类号： G01S15/8954 , G01S7/52036 , G01S7/52071
摘要： Acoustical images are generated by frequency demodulating an electrical signal having frequency deviations corresponding to the scattering properties of a media supporting acoustic pulse propagation against which the signal is projected. The system includes a transmitter which generates a signal at a defined frequency, which signal is then transformed into an acoustic pressure signal and projected against the media by a transducer. The transducer also receives acoustic pressure signals reflected from the media. A receiver coupled to the transducer transforms the reflected acoustic pressure signals into electrical signals which are then frequency demodulated. The demodulated signal contains instantaneous frequency deviations responsive to the scattering properties of the media. The frequency demodulated signal may be processed by circuitry to generate a video signal, which is then algorithmically processed by a scan converter and displayed on a video screen. The frequency demodulation may be done by a conventional frequency demodulator, by a V-demodulator, or any other frequency demodulation process. The frequency demodulated signal may also be combined with an amplitude demodulated signal to produce linear or nonlinear combinations of frequency demodulated and amplitude demodulated images. Frequency demodulated and amplitude demodulated signals may be used to provide color images of the media.
摘要翻译： 通过频率解调具有频率偏差的电信号来产生声学图像，所述频率偏差对应于支持信号被投影的声波脉冲传播的介质的散射特性。 该系统包括以规定的频率产生信号的发射机，然后将该信号转换成声压信号并通过换能器向媒体投影。 传感器还接收从介质反射的声压信号。 耦合到换能器的接收器将反射的声压信号转换成电信号，该信号然后被频率解调。 解调信号包含响应于介质散射特性的瞬时频率偏差。 频率解调信号可以由电路处理以产生视频信号，然后由扫描转换器进行算术处理并将其显示在视频屏幕上。 频率解调可以由常规频率解调器，V解调器或任何其他频率解调过程完成。 频率解调信号还可以与幅度解调信号组合以产生频率解调和幅度解调图像的线性或非线性组合。 频率解调和幅度解调信号可用于提供媒体的彩色图像。
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公开(公告)号：US4318121A
公开(公告)日：1982-03-02
申请号：US147406
申请日：1980-05-06
申请人： Jason Taite , Leonard A. Ferrari
发明人： Jason Taite , Leonard A. Ferrari
CPC分类号： H04N9/74
摘要： The subject display systems are of particular utility in assisting interior decorators and homemakers in selecting appropriate color and fabric combinations. In particular, the subject display systems provide a luminance image of an interior decor including components, such as furniture, drapes and carpets. The system picks up colors from different samples, each of which typically has an area smaller than the area of any displayed component. These picked-up colors are selectively filled in the displayed components when the image is displayed and color arrangements are changed by substituting other picked-up colors in the display of particular components.
摘要翻译： 主题显示系统在协助室内装饰家和家庭主妇选择合适的颜色和织物组合方面特别有用。 特别地，被摄体显示系统提供包括诸如家具，窗帘和地毯的部件的室内装饰的亮度图像。 该系统从不同的样品中拾取颜色，每个样品的颜色通常具有小于任何显示组分面积的面积。 当显示图像时，这些拾取的颜色被选择性地填充在显示的组件中，并且通过在特定组件的显示中替换其他拾取的颜色来改变颜色布置。
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公开(公告)号：USRE28784E
公开(公告)日：1976-04-20
申请号：US42609
申请日：1970-06-01
申请人： Leonard A. Ferrari
发明人： Leonard A. Ferrari
摘要： This specification discloses a color television system of the type in which a full color image is produced by superimposed red and white images corresponding to different color video signals representing different wavelength contents of the televised scene. The red and white images are produced by accelerating the electron beam to different velocities and the velocity of the electron beam is switched between these different velocities to produce the two superimposed images at the end of each line scan. The system incorporates a high voltage switching system to switch the voltage level applied to the screen of the picture tube in order to provide the necessary velocity switching of the electron beam. This switching comprises a transformer, the second winding of which is coupled with the relatively large capacitance provided by the screen of the picture tube. The primary side of the transformer is switched between open circuit and short circuit conditions. Energy is coupled into .[.and out of.]. the resonant circuit comprising the transformer inductance and the capacitance of the picture tube during a short circuit condition to cause the switching between high voltage levels on the picture tube.
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