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    • 3. 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。
    • 6. 发明授权
    • Solid-state imaging device including noise subtraction with polarity
control
    • 固态成像装置包括具有极性控制的噪声减除
    • US4543610A
    • 1985-09-24
    • US518699
    • 1983-07-29
    • Naoki OzawaShusaku NagaharaKenji TakahashiIwao TakemotoShigeki NishizawaMasanori SatoSatoshi Suzuki
    • Naoki OzawaShusaku NagaharaKenji TakahashiIwao TakemotoShigeki NishizawaMasanori SatoSatoshi Suzuki
    • H04N5/335H04N5/341H04N5/359H04N5/374H04N3/14H04N5/21
    • H04N5/2175
    • 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.
    • 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。
    • 7. 发明授权
    • Solid-state imaging device with high quasi-signal sweep-out efficiency
and high signal charge transfer efficiency
    • 具有高准信号扫频效率和高信号电荷转移效率的固态成像装置
    • US4532549A
    • 1985-07-30
    • US473865
    • 1983-03-10
    • Toshifumi OzakiShinya OhbaIwao TakemotoMasaaki NakaiHaruhisa AndoShusaku NagaharaTakuya ImaideKenji TakahashiToshiyuki Akiyama
    • Toshifumi OzakiShinya OhbaIwao TakemotoMasaaki NakaiHaruhisa AndoShusaku NagaharaTakuya ImaideKenji TakahashiToshiyuki Akiyama
    • H01L27/146H04N5/335H04N5/341H04N5/359H04N5/365H04N5/369H04N5/372H04N5/374H04N5/378H04N5/30
    • H01L27/14643
    • Disclosed is a solid-state imaging device wherein optical information of a number of photo-electric conversion elements arranged in a matrix is read into vertical signal lines by a vertical shift register and then the optical information on the vertical signal lines is horizontally scanned by a horizontal register of a charge transfer device. Bias charge storage means and quasi-signal sweep-out drains are disposed between the horizontal register and the vertical signal lines, and a bias charge input means is arranged in the horizontal register. In order to ensure high efficiency in transferring signals between the vertical lines to the storage means, the sweep-out drains and the charge transfer device, it is arranged for bias charges to be provided at each stage of transfer. Thus, bias charges supplied from the storage means are used to transfer charges from the vertical lines to the storage means. Similarly bias charges directly injected from the quasi-signal sweep-out drains are used to sweep out quasi-signals from the storage means to the quasi-signal sweep-out drains. Finally bias charges supplied from the bias charge input means of the charge transfer device are used to read signals from the storage means into the charge transfer device. By virtue of this, the sweep-out efficiency of the quasi-signals from the capacitances which supply the bias charges and a read-out efficiency of the signal charges are enhanced and a high quality of video signal is produced.
    • 公开了一种固态成像装置,其中以矩阵形式布置的多个光电转换元件的光学信息被垂直移位寄存器读入垂直信号线,然后垂直信号线上的光信息被水平扫描 电荷转移装置的水平寄存器。 偏置电荷存储装置和准信号扫除漏极设置在水平寄存器和垂直信号线之间,偏置电荷输入装置布置在水平寄存器中。 为了确保在垂直线之间向存储装置,扫除漏极和电荷转移装置传输信号的高效率,布置为在每个转移阶段提供偏置电荷。 因此,使用从存储装置提供的偏置电荷将电荷从垂直线传送到存储装置。 类似地,从准信号扫除漏极直接注入的偏置电荷用于将准信号从存储装置扫除到准信号扫除漏极。 最后,从电荷转移装置的偏置电荷输入装置提供的偏置电荷用于从存储装置读取信号到电荷转移装置中。 由此,来自提供偏置电荷的电容的准信号的扫除效率和信号电荷的读出效率被增强,并且产生高质量的视频信号。
    • 10. 发明授权
    • Signal transfer system of charge transfer device with charge retaining
clocking providing fixed transfer time within variable trigger pulse
time period
    • 具有电荷保持时钟的电荷转移装置的信号传输系统在可变触发脉冲时间段内提供固定的传输时间
    • US3955100A
    • 1976-05-04
    • US506835
    • 1974-09-17
    • Kenji TakahashiShusaku Nagahara
    • Kenji TakahashiShusaku Nagahara
    • G06F1/10G11C19/28H01L29/768H03K4/94
    • H01L29/76883G06F1/10G11C19/285H01L29/76891
    • A charge transfer device is made up of a plurality of charge transfer stages, each stage being composed of a plurality of capacitors and corresponding transfer electrodes. Signal charges are transferred from one stage to another by impressing clock pulses from a pulse supplying circuit to respective transfer electrodes. The pulse supplying circuit sequentially applies clock pulses which are adapted to transfer a signal charge to the initial capacitor of a respective stage during a fixed transfer time period, for a predetermined period of time within a variable time period corresponding to a delay period of time, to the respective transfer electrodes. The pulse supplying circuit also applies a clock pulse which is adapted to cause charges which are transferred to the initial capacitor to be retained therein, for the remaining period of time of said variable time period, this clock pulse being applied to a corresponding electrode of the initial capacitor.
    • 电荷转移装置由多个电荷转移级组成,每级由多个电容器和相应的转移电极构成。 通过将来自脉冲供给电路的时钟脉冲施加到各个传送电极,信号电荷从一个级传送到另一级。 脉冲提供电路在与固定传送时间段内顺序地施加时钟脉冲,该时钟脉冲适合于将信号电荷传送到各级的初始电容器,该延迟时间在与延迟时间段对应的可变时间段内的预定时间段内, 到各个转移电极。 脉冲提供电路还施加时钟脉冲,该时钟脉冲适于在所述可变时间段的剩余时间段内引起传输到初始电容器的电荷以被保持在其中,该时钟脉冲被施加到相应的电极 初始电容。