公开(公告)号：US4314277A

公开(公告)日：1982-02-02

申请号：US147629

申请日：1980-05-07

申请人： Dalton H. Pritchard ,  Alfred C. Schroeder

发明人： Dalton H. Pritchard ,  Alfred C. Schroeder

IPC分类号： H03H15/00 ,  H04B1/10 ,  H04N5/14 ,  H04N5/21

CPC分类号： H04N5/211

摘要： A television signal ghost eliminator is described, including a transversal filter having an input terminal, an output terminal at which a processed video signal is produced, a plurality of signal processing stages serially coupled between the input and output terminals, and a plurality of input taps coupled to the signal processing stages. A detected video signal is applied to the input terminal of the transversal filter and is transferred through the serially coupled stages. A circuit is responsive to the processed video signal for developing a plurality of weighting function signals which are applied to the input taps. The weighting function signals applied to the taps are combined with the detected video signal as it appears at the tapped stages, resulting in reduction in ghost signal components in the processed video signal which is produced at the output terminal of the transversal filter.

摘要翻译： 描述了一种电视信号重影消除器，包括具有输入端的横向滤波器，产生经处理的视频信号的输出端，串联耦合在输入和输出端之间的多个信号处理级，以及多个输入抽头 耦合到信号处理阶段。 检测到的视频信号被施加到横向滤波器的输入端，并通过串联耦合的级传送。 电路响应于经处理的视频信号，用于开发施加到输入抽头的多个加权函数信号。 施加到抽头上的加权函数信号与检测到的视频信号组合在一起，这是因为它们出现在抽头级，导致在横向滤波器的输出端产生的经处理的视频信号中的重影信号分量减少。

公开(公告)号：US4290671A

公开(公告)日：1981-09-22

申请号：US122722

申请日：1980-02-19

申请人： Roland N. Rhodes ,  Alfred C. Schroeder ,  Warren H. Moles

发明人： Roland N. Rhodes ,  Alfred C. Schroeder ,  Warren H. Moles

IPC分类号： G02B5/20 ,  H04N9/04 ,  H04N9/07

CPC分类号： H04N9/045

摘要： A filter for use with a CCD imager has vertical color stripes that have a non-integral relationship to the CCD sensors. A means for controlling the amount of a particular color that falls on a particular photosensor suppresses undesired signals.

摘要翻译： 与CCD成像器一起使用的滤光片具有与CCD传感器非积分关系的垂直色条。 用于控制落在特定光传感器上的特定颜色的量的装置抑制不期望的信号。

公开(公告)号：US4458269A

公开(公告)日：1984-07-03

申请号：US252817

申请日：1981-04-10

申请人： Alfred C. Schroeder

发明人： Alfred C. Schroeder

IPC分类号： H04N5/21

CPC分类号： H04N5/211

摘要： A ghost signal sampling arrangement is provided which includes a gate coupled to receive a ghost contaminated video signal. The gate passes a portion of the video signal including a main signal component available for use as a training signal and its corresponding ghost signal components. The gated signal portion is applied to a differentiator, which passes a first signal corresponding to the training signal, and subsequent signals corresponding to the ghost signal components when present. A clipping limiter is coupled to receive the signals produced by the differentiator, and produces a sampling signal corresponding to the first, training signal component, to the exclusion of the ghost signal components. A serial shift register is coupled to receive the sampling signal, which passes through the shift register and appears at sequential ones of its parallel outputs. A plurality of sampling circuits each have a control input coupled to respectively different outputs of the shift register, and a signal input coupled to the output of the differentiator. The sampling circuits sample the signal at the output of the differentiator in response to the application of a sampling signal at their respective inputs, thereby developing a time sequence of samples of the differentiator output signal. These samples may be applied to weighting function circuits for the development of weighting function signals for a ghost eliminator.

摘要翻译： 提供了一种重影信号采样装置，其包括耦合以接收重影污染视频信号的栅极。 门通过视频信号的一部分，包括可用作训练信号的主信号分量及其对应的重影信号分量。 门控信号部分被施加到微分器，该微分器通过对应于训练信号的第一信号，以及当存在时与重影信号分量相对应的后续信号。 耦合限幅器以接收由微分器产生的信号，并产生对应于第一训练信号分量的采样信号以排除重影信号分量。 串行移位寄存器被耦合以接收采样信号，该采样信号通过移位寄存器并出现在其并行输出的顺序的一个上。 多个采样电路各自具有耦合到移位寄存器的不同输出的控制输入和耦合到微分器的输出的信号输入。 采样电路响应于在其各自输入处施加采样信号，在微分器的输出处对信号进行采样，从而开发微分器输出信号的样本的时间序列。 这些样本可以应用于权重函数电路，用于开发用于重影消除器的加权函数信号。