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公开(公告)号：US4673274A
公开(公告)日：1987-06-16
申请号：US776031
申请日：1985-09-13
摘要： An automatic focusing system for a camera includes a light emitter for emitting a distance measuring light beam and a condenser lens for condensing the light beam reflected by an object. A light spot detector produces output signals corresponding to the position of the focused spot of reflected light impinging thereon. Various circuitry, including adders and subtracters and amplifiers and rectifiers and integrators are provided for processing the output signals of the light spot detector. A lens encoder detects the existing focusing position of a picture taking lens and further circuitry is provided for comparing the existing focusing position of the picture taking lens with a desired optimum focusing position and for driving the lens by a lens driving unit so as to move the lens to its optimum focusing position.
摘要翻译： 用于照相机的自动对焦系统包括用于发射距离测量光束的光发射器和用于聚焦由物体反射的光束的聚光透镜。 光点检测器产生对应于其上照射的反射光的聚焦光点的位置的输出信号。 提供各种电路，包括加法器和减法器以及放大器和整流器和积分器，用于处理光点检测器的输出信号。 透镜编码器检测图像拍摄镜头的现有对焦位置，并且提供另外的电路用于将摄像镜头的现有聚焦位置与期望的最佳聚焦位置进行比较，并且用于通过透镜驱动单元驱动透镜， 透镜到其最佳聚焦位置。
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公开(公告)号：US4327374A
公开(公告)日：1982-04-27
申请号：US146118
申请日：1980-05-02
CPC分类号： H04N9/643
摘要： A flesh correction circuit for a color television receiver includes a reference flesh signal generator for generating a signal corresponding to flesh tone, a flesh signal detector for detecting a flesh signal of a carrier chrominance signal, a carrier chrominance signal corrector for correcting the carrier chrominance signal by mixing the carrier chrominance signal and an output signal of the reference flesh signal generator with a mixing ratio controlled by an output signal of the flesh signal detector.
摘要翻译： 一种用于彩色电视接收机的肉眼校正电路，包括用于产生对应于肉色调的信号的参考肉肉信号发生器，用于检测载波色度信号的肉体信号的肉质信号检测器，用于校正载波色度信号的载波色度信号校正器 通过将载体色度信号和参考肉眼信号发生器的输出信号与由肉肉信号检测器的输出信号控制的混合比混合。
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