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    • 2. 发明授权
    • Color imaging device
    • 彩色成像装置
    • US4467347A
    • 1984-08-21
    • US346195
    • 1982-02-05
    • Naoki OzawaShusaku NagaharaKenji TakahashiMasuo UmemotoKazuhiro SatoMorishi IzumitaToshiyuki AkiyamaMasanori SatoKoji Kudo
    • Naoki OzawaShusaku NagaharaKenji TakahashiMasuo UmemotoKazuhiro SatoMorishi IzumitaToshiyuki AkiyamaMasanori SatoKoji Kudo
    • H04N9/07H04N9/04
    • H04N9/04H04N9/045
    • The present invention relates to a color imaging device which suppresses false color signals appearing in an area where the difference of brightnesses is great in the horizontal or vertical direction.When the correlation between picture elements adjacent in the vertical direction is little and the false signal appears in a boundary part in the vertical direction, the false signal is detected, whereupon a color signal is demodulated by utilizing the correlation between the signals of picture elements in the horizontal direction. On the other hand, when the correlation between picture elements adjacent in the horizontal direction is little and the false signal appears in a boundary part in the horizontal direction, the false signal is detected, whereupon a color signal is demodulated by utilizing the correlation between the signals of picture elements in the vertical direction.As a result, the moire phenomenon attributed to the false color signals can be conspicuously reduced.While embodiments of the present invention refer to color imaging devices which employ MOS type solid-state imaging devices, the invention is also applicable to an imaging device which employs CCDs and a color image pickup tube which separates colors by means of a mosaic color filter.
    • 本发明涉及一种彩色成像装置,其抑制在水平或垂直方向上亮度差大的区域中出现的伪色信号。 当在垂直方向相邻的图像元素之间的相关性较小并且在垂直方向上的边界部分中出现假信号时,检测到伪信号,由此利用彩色信号中的图像元素的信号之间的相关性来解调彩色信号 水平方向。 另一方面,当在水平方向上相邻的图像元素之间的相关性较小并且在水平方向上出现边界部分的假信号时,检测到伪信号,从而通过利用 图像元素在垂直方向上的信号。 结果,归结于虚假颜色信号的莫尔色现象可以明显减少。 虽然本发明的实施例涉及使用MOS型固态成像装置的彩色成像装置,但是本发明也可应用于采用CCD的成像装置和通过马赛克滤色器分离颜色的彩色图像拾取管。
    • 7. 发明授权
    • Circuit for generating signal for correcting deflection of electron beam
    • 用于产生用于校正电子束偏转的信号的电路
    • US4549117A
    • 1985-10-22
    • US578208
    • 1984-02-08
    • Kenji TakahashiShizuka IshibashiKoji KudoYukihiro MasudaTakuma Kodama
    • Kenji TakahashiShizuka IshibashiKoji KudoYukihiro MasudaTakuma Kodama
    • H04N9/09H04N3/233H04N9/093H01J29/56
    • H04N3/2335H04N9/093
    • A circuit for generating a signal for correcting deflection of electron beam, which circuit is advantageously used as, for example, a circuit for correcting registration in a multi-tube type color television camera. In the correction signal generating circuit, quantities of corrections at intersections defined by a plurality of lines extending in horizontal and vertical directions so as to divide a surface scanned by the electron beam into a plurality of areas are stored in terms of digital values. The digital signal read out from the memory is converted into an analog signal. The analog signal is then supplied to low-pass filter means. From the output signal of the low-pass filter means, quantities of correction are prepared for the scanning lines present between the two intersections located adjacent to each other in the vertical direction. In the circuit, the shading is positively prevented from occurring.
    • 用于产生用于校正电子束偏转的信号的电路,该电路有利地用作例如用于在多管式彩色电视摄像机中校正配准的电路。 在校正信号发生电路中,以数字值存储由在水平和垂直方向上延伸的多个线限定的交叉点处的量,以便将由电子束扫描的表面划分成多个区域。 从存储器读出的数字信号被转换为模拟信号。 然后将模拟信号提供给低通滤波器装置。 从低通滤波器装置的输出信号,为在垂直方向上彼此相邻的两个交点之间存在的扫描线准备校正量。 在电路中,可以有效防止阴影的发生。