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公开(公告)号：US4467347A
公开(公告)日：1984-08-21
申请号：US346195
申请日：1982-02-05
申请人： Naoki Ozawa , Shusaku Nagahara , Kenji Takahashi , Masuo Umemoto , Kazuhiro Sato , Morishi Izumita , Toshiyuki Akiyama , Masanori Sato , Koji Kudo
发明人： Naoki Ozawa , Shusaku Nagahara , Kenji Takahashi , Masuo Umemoto , Kazuhiro Sato , Morishi Izumita , Toshiyuki Akiyama , Masanori Sato , Koji Kudo
摘要： 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.
摘要翻译： 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。
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2.发明授权Automatic beam control circuit responsive to ambient light level having utility in color television camera 失效响应于在彩色电视摄像机中实用的环境光级的自动光束控制电路
公开(公告)号：US4151552A
公开(公告)日：1979-04-24
申请号：US923193
申请日：1978-07-10
申请人： Kazuhiro Sato , Naoki Ozawa , Shusaku Nagahara
发明人： Kazuhiro Sato , Naoki Ozawa , Shusaku Nagahara
CPC分类号： H04N9/09
摘要： An image pickup apparatus provided with a circuit for taking the maximum one of the three signal currents out of three photoconductive pickup tubes and a circuit for obtaining the difference of the maximum signal current from a current proportional to one of the cathode currents of the three pickup tubes, wherein the voltages at the beam control electrodes of the three pickup tubes are controlled together by the voltage signal corresponding to the difference current so that the resolutions of the pickup tubes are improved and that the scanning beam control circuit is simplified.
摘要翻译： 一种图像拾取装置，其具有用于从三个光电导拾取管中获取三个信号电流中的最大一个的电路和用于从与三个拾取器中的一个阴极电流成比例的电流获得最大信号电流的差的电路 管，其中三个拾取管的光束控制电极处的电压通过对应于差电流的电压信号一起控制，使得拾取管的分辨率得到改善，并且扫描光束控制电路被简化。
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公开(公告)号：US4455569A
公开(公告)日：1984-06-19
申请号：US337409
申请日：1982-01-06
申请人： Kenji Takahashi , Shusaku Nagahara , Morishi Izumita , Kazuhiro Sato , Toshiyuki Akiyama , Naoki Ozawa
发明人： Kenji Takahashi , Shusaku Nagahara , Morishi Izumita , Kazuhiro Sato , Toshiyuki Akiyama , Naoki Ozawa
CPC分类号： H04N9/093
摘要： A color imaging apparatus having a plurality of image pickup tubes which pick up respective optical images of primary colors separated from one optical image includes a registration control circuit which operates to hold a picture of high quality at all times by controlling the registration of the images of the respective image pickup tubes on a real time basis during the operation of the camera. To this end a circuit detects those local image signals which satisfy predetermined requisites which are most favorable for use as reference signals to control the registration and these detected image signals are temporarily stored so as to be used for the registration operation. The most favorable requisites of the local image areas selected for registration control are (1) those having no movement, (2) those having a contour which is sharp and (3) those having a chroma which is low.
摘要翻译： 具有拾取与一个光学图像分离的原色的各个光学图像的多个图像拾取管的彩色成像装置包括登记控制电路，其通过控制图像的登记来始终保持高质量的图像 在相机的操作期间实时地分别对应的图像拾取管。 为此，电路检测满足预定要求的那些本地图像信号，其最有利于用作参考信号以控制注册，并且这些检测到的图像信号被暂时存储以便用于注册操作。 选择用于对照控制的局部图像区域的最有利条件是（1）没有移动的图像区域，（2）具有锐利轮廓的轮廓和（3）具有低色度的轮廓的那些。
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4.发明授权
公开(公告)号：US4543610A
公开(公告)日：1985-09-24
申请号：US518699
申请日：1983-07-29
申请人： Naoki Ozawa , Shusaku Nagahara , Kenji Takahashi , Iwao Takemoto , Shigeki Nishizawa , Masanori Sato , Satoshi Suzuki
发明人： Naoki Ozawa , Shusaku Nagahara , Kenji Takahashi , Iwao Takemoto , Shigeki Nishizawa , Masanori Sato , Satoshi Suzuki
CPC分类号： H04N5/2175
摘要： A solid-state imaging device comprises a number of photodiodes arrayed in horizontal rows and vertical columns, a first output circuit for sequentially reading out signal charges from those photodiodes which are arrayed on odd-numbered horizontal rows, a second output circuit for sequentially reading out signal charges from the photodiodes arrayed on the even-numbered horizontal rows, a synchronizing pulse generator for synchronizing operation of the first and second output circuits, a first subtracting circuit for determining the difference between the output signals of the first and second output circuits in odd-numbered field, and a second subtracting circuit for determining the difference between the output signals of the first and second output circuits in even-numbered field. The outputs of the first and second subtracting circuit are alternately extracted in synchronism with the synchronizing pulse produced by the synchronizing pulse generator. The solid-state imaging device is made immune to the smear phenomenon. The invention can be advantageously applied to the solid-state imaging device of CCD type as well as MOS type.
摘要翻译： 固态成像装置包括以水平行和垂直列排列的多个光电二极管，第一输出电路，用于顺序地从排列在奇数水平行上的那些光电二极管读出信号电荷;第二输出电路，用于依次读出 来自布置在偶数水平行上的光电二极管的信号电荷，用于同步第一和第二输出电路的操作的同步脉冲发生器，用于确定奇数的第一和第二输出电路的输出信号之间的差异的第一减法电路 以及用于确定偶数场中的第一和第二输出电路的输出信号之间的差的第二减法电路。 与同步脉冲发生器产生的同步脉冲同步地交替地提取第一和第二减法电路的输出。 使固态成像装置免受涂片现象的影响。 本发明可以有利地应用于CCD型的固态成像装置以及MOS型。
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公开(公告)号：US4527200A
公开(公告)日：1985-07-02
申请号：US462764
申请日：1983-02-01
申请人： Kenji Takahashi , Shusaku Nagahara , Naoki Ozawa , Koji Kudo , Chikafusa Hirano
发明人： Kenji Takahashi , Shusaku Nagahara , Naoki Ozawa , Koji Kudo , Chikafusa Hirano
CPC分类号： H04N5/335
摘要： In a solid state imaging device in which two signals on two horizontal scanning lines are read out simultaneously for easy image enhancement, the two signals read from the two horizontal scanning lines are subtracted from each other while they are added together, and the difference signal is added to the sum signal so as to produce a video signal subject to the image enhancement. As a solid state image sensor, a MOS type image sensor as well as a CCD, CID or CC type image sensor may be used.
摘要翻译： 在固态成像装置中，两个水平扫描线上的两个信号被同时读出以便于图像增强，从两个水平扫描线读取的两个信号在它们相加在一起被相减时，差分信号是 加到和信号以产生受图像增强的视频信号。 作为固态图像传感器，可以使用MOS型图像传感器以及CCD，CID或CC型图像传感器。
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公开(公告)号：US4516154A
公开(公告)日：1985-05-07
申请号：US407484
申请日：1982-08-12
申请人： Shigeki Nishizawa , Shusaku Nagahara , Naoki Ozawa
发明人： Shigeki Nishizawa , Shusaku Nagahara , Naoki Ozawa
CPC分类号： H04N9/045
摘要： In a solid state color imaging system comprising a two-dimensional array of photoelectric devices, the photoelectric device in one of two adjacent rows are displaced with respect to those in the other row in the horizontal direction by half a horizontal pitch of the photoelectric devices, and the respective color filter elements associated with three photoelectric devices adjacent to one another in the two rows have such spectrum characteristics that the sum of outputs from the three photoelectric devices substantially corresponds to a luminance signal, whereby Moire is suppressed and high quality color pictures are obtained.
摘要翻译： 在包括光电器件的二维阵列的固态彩色成像系统中，两个相邻行之一中的光电器件相对于另一行在水平方向上的光电器件相对于光电器件的水平间距的一半位移， 并且与两行相邻的三个光电装置相关联的各个滤色器元件具有这样的频谱特性，即三个光电装置的输出之和基本上对应于亮度信号，由此抑制莫尔并且高质量的彩色图像是 获得。
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公开(公告)号：US4413284A
公开(公告)日：1983-11-01
申请号：US336322
申请日：1981-12-31
CPC分类号： H04N5/2173
摘要： This invention relates to a solid-state imaging apparatus wherein photo signals are read out through MOS type FETs from photosensors such as photodiodes arrayed in two dimensions in large numbers, and consists in remarkably enhancing the signal-to-noise ratio of an output signal by reducing or eliminating noise components to mix into the photo signals.The analysis of the noise components has revealed the correlation in which the noise component in a certain polarity develops in the opposite polarity again after a period that is shorter than one horizontal scanning period by the duration of one horizontal scanning pulse. With note taken of the correlation, a solid-state imaging apparatus comprising a processing circuit which includes a delay circuit and an adder circuit and which cancels the noise is provided.
摘要翻译： 本发明涉及一种固态成像装置，其中通过MOS型FET从诸如二维排列的光电传感器中大量地读出光信号，并且其显着地增强了输出信号的信噪比 降低或消除噪声分量，以混合到照片信号中。 噪声分量的分析揭示了在一个水平扫描脉冲的持续时间之后，在比一个水平扫描周期短的周期之后，相反极性中的噪声分量发展的相关性。 考虑到相关性，提供了包括具有延迟电路和加法器电路并且消除噪声的处理电路的固态成像装置。
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公开(公告)号：US4677621A
公开(公告)日：1987-06-30
申请号：US697761
申请日：1985-02-04
申请人： Kazuhiro Sato , Masahiro Achiha , Shusaku Nagahara
发明人： Kazuhiro Sato , Masahiro Achiha , Shusaku Nagahara
CPC分类号： G11B20/10
摘要： An analog signal is stored in an analog memory device, while lower bits of a digital signal obtained by digitizing the analog signal is stored in a digital memory device. An analog signal reproduced from the analog memory device is corrected on the basis of a digital signal reproduced from the digital memory device. The corrected reproduced signal is stored in the memory device again, whereby a recursive storage system is constructed. A signal component degraded by noise in the analog storage is corrected with the digital signal, with the result that storage and reproduction of favorable signal-to-noise ratio are realized.
摘要翻译： 模拟信号存储在模拟存储器件中，而通过数字化模拟信号获得的数字信号的低位存储在数字存储器件中。 基于从数字存储装置再现的数字信号，校正从模拟存储装置再现的模拟信号。 校正后的再生信号再次存储在存储装置中，构成了递归存储系统。 由模拟存储器中的噪声劣化的信号分量用数字信号进行校正，从而实现有利的信噪比的存储和再现。
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9.发明授权Pulse generating circuit for a television camera using solid state image sensor 失效用于使用固态图像传感器的电视摄像机的脉冲发生电路
公开(公告)号：US4484224A
公开(公告)日：1984-11-20
申请号：US374871
申请日：1982-05-04
申请人： Kazuhiro Sato , Nobuo Murata , Kenji Takahashi , Shusaku Nagahara
发明人： Kazuhiro Sato , Nobuo Murata , Kenji Takahashi , Shusaku Nagahara
CPC分类号： H04N5/335
摘要： Disclosed is a solid state television camera with solid state image sensor for converting an optical image into electrical signals, which is comprised of a pulse generator for generating a train of pulses with a frequency equal to the horizontal scanning frequency of a television system, a frequency divider for frequency-dividing the pulse train into a signal with a frequency substantially equal to the vertical scanning frequency alternately in two modes of l/n and l/n+l (where n is a positive integer), and a selective circuitry for forming a train of pulses with a desired vertical scanning frequency on the basis of the pulse trains derived from the pulse generator and the frequency divider.
摘要翻译： 公开了一种具有用于将光学图像转换为电信号的固态图像传感器的固态电视摄像机，其包括用于产生频率等于电视系统的水平扫描频率的脉冲串的脉冲发生器，频率 分频器，用于以l / n和l / n + 1的两种模式（其中n为正整数）交替地将脉冲串分频成具有基本上等于垂直扫描频率的频率的信号，以及用于形成的选择电路 基于从脉冲发生器和分频器导出的脉冲串，具有期望的垂直扫描频率的脉冲串。
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公开(公告)号：US4281338A
公开(公告)日：1981-07-28
申请号：US070816
申请日：1979-08-29
申请人： Kenji Takahashi , Shusaku Nagahara , Kazuhiro Sato , Masuo Umemoto , Toshiyuki Akiyama , Morishi Izumita
发明人： Kenji Takahashi , Shusaku Nagahara , Kazuhiro Sato , Masuo Umemoto , Toshiyuki Akiyama , Morishi Izumita
CPC分类号： H04N9/045
摘要： In a solid state color imaging apparatus comprising photo sensitive element arrays arranged horizontally and vertically, means for reading out parallel photo signals of the photo sensitive element arrays on two horizontal lines and delivering the read out photo signals to first and second output circuits, and a mosaic color filter disposed in front of the photo sensitive elements and having luminance filtering counterparts arranged horizontally and vertically one after the other and two types of color filtering counterparts arranged at the remaining positions and on alternate horizontal lines, the horizontal clock from the reading out means has a frequency of 7.16 MHz so that color difference signals having the chrominance subcarrier component of 3.58 MHz are directly obtained in the first and second output circuits.
摘要翻译： 在包括水平和垂直布置的光敏元件阵列的固态彩色成像装置中，用于在两条水平线上读出光敏元件阵列的平行光信号并将读出的光信号传送到第一和第二输出电路的装置，以及 布置在感光元件前方的镶嵌彩色滤光片，并且具有排列在其余位置和交替水平线上的水平和垂直布置的两个类型的滤色对应物的亮度滤波对应物，来自读出装置的水平时钟 具有7.16MHz的频率，使得在第一和第二输出电路中直接获得具有3.58MHz的色度副载波分量的色差信号。
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