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    Single-tube color tv camera using 120{20 {0 phase separation
    1.
    发明授权
    Single-tube color tv camera using 120{20 {0 phase separation 失效
    单管彩色电视摄像机使用120 {20 {0相分离

    公开(公告)号：US3647946A

    公开(公告)日：1972-03-07

    申请号：US3647946D

    申请日：1969-12-10

    Applicant: BELL TELEPHONE LABOR INC

    Inventor： ENLOE LOUIS H

    IPC: H04N9/07 ,  H04N9/077 ,  H04N9/06

    CPC classification number: H04N9/077

    Abstract: An optical system spatially modulates three individual primarycolor images onto a common spatial carrier frequency with 120* phase separation. Electron beam scanning of a single tube converts the spatially modulated image to an electrical output signal composed of an average value and a chrominance signal consisting of three modulated waves at a single electrical color carrier frequency separated in phase by 120*. Since the scan velocity varies, the frequency of the electrical color carrier is modulated by the velocity. A signal having the same modulation is used as a reference for phase demodulation of the chrominance signal to produce three individual components. The average value of the output signal, which represents the monochrome, is combined with each of the individual components to form three independent signals, each representative of one of the primary images. The phase demodulation technique requires substantially lower spatial resolution than time sequential or frequency separation schemes, and the specific 120* spatial phase separation of the image components insures against hue shift due to variations in the tube''s aperture response.

    Abstract translation: 光学系统将三个单独的原色图像空间调制到具有120°相位分离的公共空间载波频率上。 单管的电子束扫描将空间调制图像转换成由平均值和由三相调制波组成的色差信号组成的电输出信号，该三个调制波在相位为120°的单个电色载波频率处。 由于扫描速度变化，电色载体的频率由速度调制。 将具有相同调制的信号用作用于色度信号的相位解调的基准，以产生三个单独的分量。 表示单色的输出信号的平均值与每个单独的组件组合以形成三个独立的信号，每个信号代表主图像之一。 相位解调技术需要比时间顺序或频率分离方案显着更低的空间分辨率，并且图像部件的特定120°空间相位分离确保由于管的孔径响应的变化而导致的色相偏移。

    Holographic flying-spot scanner
    6.
    发明授权
    Holographic flying-spot scanner 失效
    全景飞行扫描仪

    公开(公告)号：US3644665A

    公开(公告)日：1972-02-22

    申请号：US3644665D

    申请日：1969-03-11

    Applicant: BELL TELEPHONE LABOR INC

    Inventor： ENLOE LOUIS H ,  LARSEN ARTHUR B

    IPC: H04N13/00 ,  H04N9/56

    CPC classification number: H04N13/00

    Abstract: This disclosure relates to a holographic flying-spot scanner wherein a stationary collimated beam illuminates the subject and is then optically relayed via a beamsplitter to a photodetector. A scanning spot is focused an appropriate distance in front of the beamsplitter such that the locus of the virtual image thereof lies in a plane which is in front of, at, or behind, the subject or subject plane, as desired. The detected interference between the rays of the scanning spot and the beam passing through the subject is used to reconstruct a hologram of the subject. The plane of the hologram is the locus of the virtual image of the scanning spot.

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