Processor for emphasizing edges of a video signal
    2.
    发明授权
    Processor for emphasizing edges of a video signal 失效
    用于强调视频信号边缘的处理器

    公开(公告)号:US4843472A

    公开(公告)日:1989-06-27

    申请号:US129773

    申请日:1987-12-07

    申请人: Toru Shinada

    发明人: Toru Shinada

    IPC分类号: H04N5/208 H04N5/14

    CPC分类号: H04N5/142

    摘要: A processing apparatus emphasizes edges of a video signal which is applied thereto and non-linear relative to density or luminance levels adapted for the reproduction of a video signal. The processing apparatus includes a linear converter for converting the non-linear video signal into a linear video signal. The linear video signal is applied to an edge emphasizing unit to produce a linear edge-emphasized video signal. A non-linear converter is provided for applying non-linear processing to the linear edge-emphasized video signal, whereby a non-linear edge-emphasized video signal is achieved.

    摘要翻译: 处理装置强调施加到其上的视频信号的边缘并且相对于适于再现视频信号的浓度或亮度级别是非线性的。 处理装置包括用于将非线性视频信号转换为线性视频信号的线性转换器。 线性视频信号被施加到边缘加强单元以产生线性边缘强调视频信号。 提供一种用于对线性边缘强调视频信号应用非线性处理的非线性转换器,由此实现非线性边缘强调视频信号。

    Device for interpolating missing color-difference signal by averaging
line-sequential color-difference signals
    3.
    发明授权
    Device for interpolating missing color-difference signal by averaging line-sequential color-difference signals 失效
    通过平均线序色差信号来内插缺失色差信号的装置

    公开(公告)号:US4796085A

    公开(公告)日:1989-01-03

    申请号:US15078

    申请日:1987-02-17

    申请人: Toru Shinada

    发明人: Toru Shinada

    CPC分类号: H04N9/646 H04N1/56 H04N9/045

    摘要: An apparatus interpolates color-difference line-sequential signals appearing alternately in a video signal together with a luminance signal. The video signal is received by an input circuit and then held temporarily and on a horizontal scanning line basis by a hold circuit. Each of the color-difference signals is interpolated by an interpolating circuit by producing an arithmetic mean of the color-difference data of the video signal being held by the hold circuit and color-difference data of the video signal being received by the input circuit, on the basis of the pixels corresponding to each other on horizontal scanning lines.

    摘要翻译: 一种装置将视频信号中交替显示的色差线序信号与亮度信号一起内插。 视频信号由输入电路接收,然后暂时保持在水平扫描线的基础上由保持电路保持。 通过产生由保持电路保持的视频信号的色差数据的算术平均值和由输入电路接收的视频信号的色差数据,通过内插电路对每个色差信号进行内插, 基于水平扫描线上彼此对应的像素。

    Video signal circuit having time base correction
    4.
    发明授权
    Video signal circuit having time base correction 失效
    具有时基校正的视频信号电路

    公开(公告)号:US4802025A

    公开(公告)日:1989-01-31

    申请号:US929509

    申请日:1986-11-12

    申请人: Toru Shinada

    发明人: Toru Shinada

    IPC分类号: G11B20/02 H04N5/956

    CPC分类号: H04N5/956

    摘要: A video signal circuit performing the function of time base correction has a pair of memories each adapted to store at least one field of video data and a pair of shift registers associated with both memories. The memories are set to the read state and write state alternately. A shift register associated with a memory in its write state receives one unit of video signal data in series in response to a first sync signal to write these data in the associated memory during a portion of the horizontal blanking period specified by the first sync signal. The other shift register associated with the memory in its read state reads another unit of video signal data from the associated memory during a portion of the horizontal blanking period specified by a second sync signal to sequentially produce the read data in synchronism with the second sync signal.

    摘要翻译: 执行时基校正功能的视频信号电路具有一对存储器,每个存储器适于存储视频数据的至少一个场和与两个存储器相关联的一对移位寄存器。 存储器被设置为读取状态并且交替地写入状态。 与其写入状态的存储器相关联的移位寄存器响应于第一同步信号串行接收一个单位的视频信号数据,以在由第一同步信号指定的水平消隐周期的一部分期间将这些数据写入相关的存储器。 在其读取状态下与存储器相关联的另一个移位寄存器在由第二同步信号指定的水平消隐周期的一部分期间从相关联的存储器读取另一单位的视频信号数据,以与第二同步信号同步地依次产生读取数据 。