Image Signal Processor and Deficient Pixel Detection Method

    公开(公告)号:US20060232691A1

    公开(公告)日:2006-10-19

    申请号:US11426759

    申请日:2006-06-27

    申请人: Tohru Watanabe

    发明人: Tohru Watanabe

    IPC分类号: H04N9/64

    摘要: A deficiency candidate detection circuit detects a deficient pixel candidate by comparing the image signal of a target pixel with the image signals of peripheral pixels, and address information of the deficient pixel candidate is stored in a position memory circuit. A deficiency determining circuit repeats the determination of a deficient pixel a number of times based on the address information stored in the position memory circuit, and determines address information of a deficient pixel from the continuity of the determination results. A deficiency registering circuit registers the determined address information in the position memory circuit. A deficiency correction circuit corrects the image signal of the deficient pixel according to the registered address information of the deficient pixel.

    Image signal processor and deficient pixel detection method
    52.
    发明授权
    Image signal processor and deficient pixel detection method 有权
    图像信号处理器和缺陷像素检测方法

    公开(公告)号:US07092018B1

    公开(公告)日:2006-08-15

    申请号:US09696393

    申请日:2000-10-25

    申请人: Tohru Watanabe

    发明人: Tohru Watanabe

    IPC分类号: H04N9/64 G06K9/38 H04N1/04

    摘要: A deficiency candidate detection circuit detects a deficient pixel candidate by comparing the image signal of a target pixel with the image signals of peripheral pixels, and address information of the deficient pixel candidate is stored in a position memory circuit. A deficiency determining circuit repeats the determination of a deficient pixel a number of times based on the address information stored in the position memory circuit, and determines address information of a deficient pixel from the continuity of the determination results. A deficiency registering circuit registers the determined address information in the position memory circuit. A deficiency correction circuit corrects the image signal of the deficient pixel according to the registered address information of the deficient pixel.

    摘要翻译: 不足候选检测电路通过将目标像素的图像信号与周边像素的图像信号进行比较来检测缺陷像素候选,并且将不良像素候选的地址信息存储在位置存储电路中。 缺陷判定电路基于存储在位置存储电路中的地址信息重复不良像素的判定次数,根据判定结果的连续性来判定缺陷像素的地址信息。 缺陷登记电路将确定的地址信息登记在位置存储电路中。 缺陷校正电路根据缺陷像素的注册地址信息校正缺陷像素的图像信号。

    Image data processing apparatus
    53.
    发明申请
    Image data processing apparatus 有权
    图像数据处理装置

    公开(公告)号:US20060012686A1

    公开(公告)日:2006-01-19

    申请号:US10531768

    申请日:2003-12-10

    申请人: Tohru Watanabe

    发明人: Tohru Watanabe

    IPC分类号: H04N5/228

    CPC分类号: G06T1/00

    摘要: A first processing circuit subjects image data output from an A/D converter circuit to a first signal process to produce first image data. A second processing circuit subjects image data to a second signal process, which is independent of the first signal process, to produce second image data. The first and second processing circuits execute the first and second signal processes in a parallel manner to output the first and second image data to a display device and a system microcomputer.

    摘要翻译: 第一处理电路将从A / D转换器电路输出的图像数据作为第一信号处理,以产生第一图像数据。 第二处理电路使图像数据进入与第一信号处理无关的第二信号处理,以产生第二图像数据。 第一和第二处理电路以并行方式执行第一和第二信号处理,以将第一和第二图像数据输出到显示装置和系统微计算机。

    Method and apparatus for driving solid state image sensor
    54.
    发明授权
    Method and apparatus for driving solid state image sensor 失效
    用于驱动固态图像传感器的方法和装置

    公开(公告)号:US06351284B1

    公开(公告)日:2002-02-26

    申请号:US08719439

    申请日:1996-09-25

    IPC分类号: H04N5335

    摘要: A method and apparatus for driving a solid state image sensor are disclosed. The method and apparatus operate such that the amount of information charges remaining in channel regions at the time of transferring the information charge packets from the channel regions is significantly reduced. The solid state image sensor being driven has a semiconductor substrate, at least one layer of which is located over the semiconductor substrate and where channel regions are formed, and gate electrodes are formed over the semiconductor substrate to respectively cover the channel regions. Drain regions are also defined in the semiconductor substrate respectively adjacent to the channel regions in either a lateral direction or a vertical direction. Each channel region is capable of storing information charges. The driving device for the described solid state image sensor includes: a first control voltage generator for applying a first control voltage to one of the gate electrodes in a predetermined period to form a potential well in at least one of the channel regions; and a second control voltage generator for applying a second control voltage to the semiconductor substrate defining the drain regions in the predetermined period so as to set the potential barrier lower than the preset height in order to temporarily restrict an amount of the information charges to be stored in the potential well.

    摘要翻译: 公开了一种用于驱动固态图像传感器的方法和装置。 所述方法和装置的操作使得在从信道区域传送信息计费数据包时剩余在信道区域中的信息量的量显着减少。 被驱动的固态图像传感器具有半导体衬底,其至少一层位于半导体衬底上并且形成沟道区,并且在半导体衬底上形成栅电极以分别覆盖沟道区。 在半导体衬底中也限定了在横向或垂直方向上分别与沟道区相邻的漏极区。 每个通道区域都能够存储信息费用。 用于所述固态图像传感器的驱动装置包括:第一控制电压发生器,用于以预定周期向一个栅电极施加第一控制电压,以在至少一个沟道区中形成势阱; 以及第二控制电压发生器,用于在预定时间段内向限定漏区的半导体衬底施加第二控制电压,以将势垒设置为低于预设高度,以暂时限制要存储的信息电荷量 在潜力很好。

    Solid-state image pickup device with a shared shift register and method of driving the same
    55.
    发明授权
    Solid-state image pickup device with a shared shift register and method of driving the same 失效
    具有共享移位寄存器的固态图像拾取装置及其驱动方法

    公开(公告)号:US06288744B1

    公开(公告)日:2001-09-11

    申请号:US08555118

    申请日:1995-11-08

    IPC分类号: H04N314

    CPC分类号: H04N5/3452 H04N5/37213

    摘要: The invention is intended to provide a highly integrated solid-state image pickup device, in which the number of transfer electrodes of a horizontal shift register is reduced, and a plurality of vertical shifter registers are arranged with a reduced pitch therebetween. Output-control gate electrodes are disposed at an output end of the vertical shift registers. These output-control gate electrodes are operated independently from vertical transfer gate electrodes, and temporarily reserve information charges. Horizontal transfer gate electrodes corresponding to the vertical shift registers on odd-numbered columns are turned on, so signals charges in these vertical shift registers are read into a horizontal shift register. During horizontal transfer of these information charges, information charges of vertical shift registers on even-numbered columns are reserved, for half of a horizontal scanning period, in output ends of the vertical shift registers by the output-control gate electrodes. Thereafter, the information charges in the vertical shift registers on the even-numbered columns are read into the horizontal shift register, and are horizontally transferred. Since one horizontal transfer operation requires half of the pixels per row, the horizontal shift regiter includes two transfer electrodes for each vertical shift register.

    摘要翻译: 本发明旨在提供一种高度集成的固态图像拾取装置,其中水平移位寄存器的转移电极的数量减少,并且多个垂直移位寄存器之间以缩小的间距排列。 输出控制栅电极设置在垂直移位寄存器的输出端。 这些输出控制栅电极独立于垂直传输栅极电极工作,并暂时保留信息电荷。 对应于奇数列上的垂直移位寄存器的水平传输门电极导通,因此这些垂直移位寄存器中的信号电荷被读入水平移位寄存器。 在这些信息电荷的水平传送期间,通过输出控制栅电极在垂直移位寄存器的输出端保留偶数列上的垂直移位寄存器的信息电荷,占水平扫描周期的一半。 此后,偶数列上的垂直移位寄存器中的信息电荷被读入水平移位寄存器,并被水平传送。 由于一个水平传送操作需要每行的一半像素,所以水平移位调节器包括用于每个垂直移位寄存器的两个传送电极。

    Solid-state color image pickup device for reproducing a color image
    56.
    发明授权
    Solid-state color image pickup device for reproducing a color image 失效
    用于再现彩色图像的固态彩色图像拾取装置

    公开(公告)号:US5703641A

    公开(公告)日:1997-12-30

    申请号:US414756

    申请日:1995-03-31

    申请人: Tohru Watanabe

    发明人: Tohru Watanabe

    摘要: A solid-state color image pickup device which is capable of simplifying signal processing with respect to picture signals. A color filter mounted on the solid-state image pickup device is composed of first to fourth filter elements E1 to E4. The sum E1+E2 of the signals of color components obtained by adding the color components of the first filter element E1 and the second filter element E2 which are disposed in an odd-numbered row is equal to the sum E3+E4 of the signal of color components obtained by adding the color components of the third filter element E3 and the fourth filter element E4 which are disposed in an even-numbered row. A brightness signal having color components in a predetermined ratio is obtained for each of E1+E2, and E3+E4. A color component signal representing one of the three primary colors (R, G, B) of light is represented by the difference between the color component signals of the first filter element E1 and the second filter element E2, and the difference between the color component signals of the third filter element E3 and the fourth filter element E4. Thus, signals necessary for producing a color image are obtained for each row of light-receiving picture elements.

    摘要翻译: 一种固态彩色图像拾取装置,其能够简化关于图像信号的信号处理。 安装在固态图像拾取装置上的滤色器由第一至第四滤色器元件E1至E4组成。 通过将配置在奇数行中的第一滤波器元件E1和第二滤波器元件E2的颜色分量相加而获得的颜色分量的信号的和E1 + E2与信号的信号的和+ E3 + E4的和 通过添加配置在偶数行中的第三滤波器元件E3和第四滤波器元件E4的颜色分量而获得的颜色分量。 对于E1 + E2和E3 + E4中的每一个,获得具有预定比率的颜色分量的亮度信号。 表示光的三原色(R,G,B)中的一种的颜色分量信号由第一滤光器元件E1和第二滤光器元件E2的颜色分量信号之间的差异以及颜色分量 第三滤波器元件E3和第四滤波器元件E4的信号。 因此,对于每行受光图像元素获得产生彩色图像所需的信号。

    Circuit scale reduction for bit-serial digital signal processing
    57.
    发明授权
    Circuit scale reduction for bit-serial digital signal processing 失效
    位串行数字信号处理的电路规模缩小

    公开(公告)号:US5544091A

    公开(公告)日:1996-08-06

    申请号:US205844

    申请日:1994-03-02

    申请人: Tohru Watanabe

    发明人: Tohru Watanabe

    IPC分类号: G06F17/10 H04N7/14 G06F7/38

    CPC分类号: H04N7/147 G06F17/10

    摘要: For input signals f0-f7, by the implementing of signal processing in several stages with bit-serial form, output signals f0-f7 are obtained. For input signals f0-f7, non-two's power approximation proportions of ideal values of fixed coefficient, i.e., cos[.pi.l(2K+1)/2N] are applied. This results in asymmetrical hardware to implement a forward transform mode and an inverse transform mode. Therefore, by adding a circuit element which is employed for a forward transform mode, and by adding a circuit element which is employed for an inverse transform mode, hardware which can deal with both of forward transform and inverse transform is realized.

    摘要翻译: 对于输入信号f0-f7,通过以位串行形式实现数个级的信号处理,获得输出信号f0-f7。 对于输入信号f0-f7,施加固定系数的理想值的非二次方的功率近似比例,即cosπ(2K + 1)/ 2N]。 这导致不对称硬件实现正向变换模式和逆变换模式。 因此,通过添加用于正向变换模式的电路元件,并且通过添加用于逆变换模式的电路元件,实现了可以处理正向变换和逆变换两者的硬件。

    Driving method for discharging overflow charges in a solid state imaging
device
    58.
    发明授权
    Driving method for discharging overflow charges in a solid state imaging device 失效
    用于在固态成像装置中放电过流充电的驱动方法

    公开(公告)号:US5057926A

    公开(公告)日:1991-10-15

    申请号:US534236

    申请日:1990-06-07

    申请人: Tohru Watanabe

    发明人: Tohru Watanabe

    CPC分类号: H01L27/14887 H04N3/1556

    摘要: A method of driving a solid-state imaging device for discharging optical charge stored in a channel area of a solid-state imaging device so as to adjust exposure. In a solid-state imaging device having a horizontal-type overflow drain structure in which an overflow drain is formed at a channel stop for dividing a channel area, optical charge stored in the channel area is transferred in an opposite direction to a reading direction during a vertical scanning period and a potential barrier between the channel area and the overflow drain is extinguished during the period of transfer of optical charge, thereby discharging the charge. The optical charge stored again in the channel area is transferred in the reading direction within a blanking period during the vertical scanning period. In driving a device having a vertical-type overflow drain structure in which a channel area is formed by being divided in a diffusion area formed on a semiconductor substrate, optical charge stored in the channel area is transferred in an opposite direction to a reading direction during a vertical scanning period and a potential barrier between the channel area and the semiconductor substrate is extinguished during the period of transfer of the optical charge, thereby discharging the optical charge. The optical charge stored again in the channel area is transferred in the reading direction within a blanking period during the vertical scanning period. Exposure of the solid-state imaging device is adjusted by means of a discharge timing.

    Method of aligning and assembling disk-shaped works having projections
on outer peripheries thereof
    60.
    发明授权
    Method of aligning and assembling disk-shaped works having projections on outer peripheries thereof 失效
    对准和组装具有在其外周上具有突起的盘形工件的方法

    公开(公告)号:US4910856A

    公开(公告)日:1990-03-27

    申请号:US305013

    申请日:1989-02-02

    申请人: Tohru Watanabe

    发明人: Tohru Watanabe

    IPC分类号: B23P19/00 B23P19/04

    摘要: There is disclosed a method and apparatus for aligning and assembling disk-shaped works having projections on outer peripheries thereof. A vessel-shaped work is positioned and a plurality of disk-shaped works in a stacked condition are guided to a position on the opening edge of the vessel-shaped work by the work guide means, and then the pin provided for up and down movement on the rotary head is either inserted between adjacent ones of the projections of the disk-shaped works or contacted with and stopped by an upper face of one of the projections of the disk-shaped works. Also when the pin is stopped by the upper face of the one projection, as the rotary head is rotated, the pin is moved in the circumferential direction of the disk-shaped works so that it is disengaged from the upper face of the one projection and the engaged with an adjacent one of the projections of the disk-shaped work. Thus, the disk-shaped works are finally rotated in an integral relationship by the pin. Accordingly, the projections of the disk-shaped works are successively aligned with and fitted into the recessed grooves of the vessel-shaped work beginning with the lowermost one of the disk-shaped works. In this manner, the plurality of disk-shaped works are finally assembled in an aligned condition to the inside of the vessel-shaped work.

    摘要翻译: 公开了一种用于对准和组装具有在其外周上具有突起的盘形工件的方法和装置。 将容器状的工件定位,并且将堆叠状态的多个圆盘状工件通过工作引导装置引导到容器状工件的开口边缘上的位置,然后设置用于上下运动的销 在旋转头上插入盘形工件的相邻的突起之间,或者与盘形工件的一个突起的上表面接触并停止。 此外,当销被一个突起的上表面停止时,当旋转头旋转时,销沿圆盘状工件的圆周方向移动,使其从一个突起的上表面脱离,并且 与盘状工件的相邻的一个突起接合。 因此,盘形工件最终以销的整体关系旋转。 因此,圆盘状工件的凸起与盘形工件的最下面的一起形成连续对齐并嵌合在容器状工件的凹槽中。 以这种方式,多个盘状工件最终以对准的状态组装到容器状工件的内部。