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1. 发明授权

US08059205B2 Image signal processing apparatus and image signal processing method for controlling optical black level of image signal 有权
标题翻译：用于控制图像信号的光学黑色电平的图像信号处理装置和图像信号处理方法
公开(公告)号：US08059205B2
公开(公告)日：2011-11-15
申请号：US11843728
申请日：2007-08-23
申请人： Toshio Nakakuki
发明人： Toshio Nakakuki
IPC分类号： H04N5/18 , H04N5/16
CPC分类号： H04N5/185 , H03M1/1295
摘要： An image signal processing apparatus includes a clamp circuit that clamps an image signal having a horizontal synchronization signal, an optical black level period representing an optical black level, and an effective signal period representing an image signal for one horizontal line so as to clamp a value offset from the image signal on the basis of a first reference value during the optical black level period and to clamp the image signal on the basis of a second reference value different from the first reference value during the effective signal period, and a level computation circuit that determines the second reference value on the basis of a signal level clamped during the optical black level period.
摘要翻译：图像信号处理装置包括：钳位电路，其钳位具有水平同步信号的图像信号，表示光学黑色电平的光学黑电平周期，以及表示一条水平线的图像信号的有效信号周期，以钳位值基于光学黑电平期间中的第一基准值，从图像信号偏移，并且在有效信号周期内，基于与第一基准值不同的第二基准值来钳位图像信号，以及电平计算电路其基于在光学黑电平周期期间钳位的信号电平来确定第二参考值。

2. 发明申请

US20050157203A1 Flicker detecting device and image pickup apparatus 审中-公开
标题翻译：闪烁检测装置和图像拾取装置
公开(公告)号：US20050157203A1
公开(公告)日：2005-07-21
申请号：US11011447
申请日：2004-12-15
申请人： Toshio Nakakuki , Ritsuya Iida
发明人： Toshio Nakakuki , Ritsuya Iida
IPC分类号： G03B7/08 , G03B21/40 , H04N3/14 , H04N5/21 , H04N5/222 , H04N5/225 , H04N5/232 , H04N5/235 , H04N5/238 , H04N5/335 , H04N5/341 , H04N5/351 , H04N5/357 , H04N5/372 , G03B7/00
CPC分类号： H04N5/2357 , H04N5/2351 , H04N5/2352
摘要： Flicker, which occurs in photographing of a moving image under lighting by a fluorescent lamp, is detected accurately. A common multiple of a light-emitting period {fraction (1/100)} sec in a region where a frequency of a commercial AC power supply is 50 Hz, a light-emitting period {fraction (1/120)} sec in a region where the frequency is 60 Hz, and 1/fp according to a frame rate fp is defined as a synchronous period. An exposure condition determining unit decides an exposure condition on the basis of an image signal level at each synchronous period and feeds back the exposure condition to exposure control of a frame after the synchronous period. A synchronous level extracting unit extracts image signal levels for plural frames at each synchronous period and a synchronous judging unit judges a stability state of the levels. On the other hand, a flicker judging unit detects presence of a section where a fluctuation in an image signal level between adjacent frames is large in the synchronous period. When the synchronous level judging unit confirms that an exposure stable state is realized, the flicker judging unit makes a result of judgment on flicker based on the fluctuation of a signal level in the synchronous period effective.
摘要翻译：正确地检测在荧光灯照明下拍摄运动图像时发生的闪烁。发光周期的共同倍数（分数（商业交流电源的频率为50Hz的区域中的1/100秒，发光周期（分数（频率的区域的1/120秒） 60Hz，根据帧速率fp的1 / fp被定义为同步时段，曝光条件确定单元基于每个同步周期的图像信号电平来决定曝光条件，并将曝光条件反馈到曝光在同步时段之后的帧的控制，同步电平提取单元在每个同步周期提取多个帧的图像信号电平，同步判断单元判断电平的稳定状态，另一方面，闪烁判断单元检测是否存在在同步期间相邻帧之间的图像信号电平的波动大的部分，当同步电平判断部确认实现曝光稳定状态时，闪烁判断 g单元基于同步周期中的信号电平的波动有效而产生对闪烁的判断结果。

3. 发明授权

US06674465B1 Image processing apparatus which does not generate a false signal even if unevenness of spectral sensitivities of the color filter occurs 有权
标题翻译：即使滤色片的光谱灵敏度不均匀，也不产生假信号的图像处理装置
公开(公告)号：US06674465B1
公开(公告)日：2004-01-06
申请号：US09448028
申请日：1999-11-23
申请人： Toshio Nakakuki
发明人： Toshio Nakakuki
IPC分类号： H04N5228
CPC分类号： H04N9/646 , H04N9/045
摘要： An apparatus for processing image data including three complementary color components representing the three primary colors includes a distribution circuit for distributing the image data into first to third complementary color components. A multiplication circuit generates first to third products by multiplying the first and second complementary color components, the first and third complementary color components, and the second and third complementary color components. A square root circuit then calculates the square root of each of the three products. The calculated square roots represent the three primary colors.
摘要翻译：用于处理包括表示三原色的三个补色组分的图像数据的装置包括用于将图像数据分配到第一至第三互补色分量的分配电路。乘法电路通过将第一和第二补色分量，第一和第三补色分量以及第二和第三补色分量相乘来产生第一至第三乘积。然后，平方根电路计算三个产品中的每一个的平方根。计算出的平方根表示三原色。

4. 发明授权

US5712683A Level adjusting circuit of color image signal 失效
标题翻译：彩色图像信号电平调整电路
公开(公告)号：US5712683A
公开(公告)日：1998-01-27
申请号：US619896
申请日：1996-03-06
申请人： Tomomichi Nakai , Toshio Nakakuki
发明人： Tomomichi Nakai , Toshio Nakakuki
IPC分类号： H04N9/07 , H04N9/68 , H04N9/64 , H04N5/52
CPC分类号： H04N9/68
摘要： A signal level adjusting circuit for performing adjustment of signal levels in which the levels of individual image signals are made uniform so as to provide greater use of a dynamic range on an image sensor without deterioration to resolution.
摘要翻译：一种信号电平调整电路，用于执行信号电平的调节，其中使各个图像信号的电平均匀，以便在图像传感器上更大程度地使用动态范围，而不会降低分辨率。

5. 发明申请

US20080018747A1 Solid-state image pickup module 审中-公开
标题翻译：固态摄像模块
公开(公告)号：US20080018747A1
公开(公告)日：2008-01-24
申请号：US11880508
申请日：2007-07-23
申请人： Toshio Nakakuki
发明人： Toshio Nakakuki
IPC分类号： H04N5/225
CPC分类号： H04N5/3725 , H04N5/2353 , H04N5/353 , H04N5/3722 , H04N5/3765
摘要： There are included an image pickup device including a semiconductor-based photoelectric transducer, and a control unit that includes an arithmetic part to determine an image pickup condition and controls the image pickup device based on the image pickup condition, the control unit further includes a register in which a basic clock number of a basic clock per unit time is set and stored, and the arithmetic part performs an arithmetic operation on the image pickup condition based on the basic clock number.
摘要翻译：包括包括基于半导体的光电转换器的图像拾取装置和包括用于确定图像拾取条件的运算部分并且基于图像拾取条件控制图像拾取装置的控制单元，该控制单元还包括寄存器其中设置并存储每单位时间的基本时钟的基本时钟数，并且运算部基于基本时钟数对图像摄取条件进行算术运算。

6. 发明申请

US20070145427A1 SOLID-STATE IMAGE SENSOR 审中-公开
标题翻译：固态图像传感器
公开(公告)号：US20070145427A1
公开(公告)日：2007-06-28
申请号：US11614620
申请日：2006-12-21
申请人： Mamoru Arimoto , Hayato Nakashima , Toshio Nakakuki
发明人： Mamoru Arimoto , Hayato Nakashima , Toshio Nakakuki
IPC分类号： H01L29/768
CPC分类号： H01L27/14806 , H04N5/3597 , H04N5/361 , H04N5/37213
摘要： A solid-state image sensor capable of suppressing generation of cross talk or a dark current and improving transfer efficiency of electrons (signal charge) can be obtained. This solid-state image sensor includes a plurality of pixels and a transfer gate electrode arranged in each of the plurality of pixels. An OFF-state voltage of the transfer gate electrode located on a boundary part between the pixels during an imaging period is lower than an OFF-state voltage of the transfer gate electrode located on the boundary part between the pixels during a transfer period.
摘要翻译：可以获得能够抑制串扰或暗电流的产生并提高电子传递效率的固态图像传感器（信号电荷）。该固态图像传感器包括布置在多个像素中的多个像素和传输栅电极。在成像期间位于像素之间的边界部分上的传输栅电极的截止状态电压低于转印期间位于像素之间的边界部分上的转印栅极的截止电压。

7. 发明申请

US20050200760A1 Image-signal processing apparatus 有权
标题翻译：图像信号处理装置
公开(公告)号：US20050200760A1
公开(公告)日：2005-09-15
申请号：US11070264
申请日：2005-03-03
申请人： Toshio Nakakuki
发明人： Toshio Nakakuki
IPC分类号： H04N5/208 , H04N5/20 , H04N5/217
CPC分类号： H04N5/142 , H04N5/202 , H04N5/208
摘要： The structure of an image-signal processing apparatus for performing gamma correction and edge enhancement of a image signal is simplified. An edge-correction-gain generation circuit generates a gain signal according to the level of a image signal that has passed through an A-LPF on the basis of a preset transfer characteristic function. An edge-signal generation circuit generates an edge signal corresponding to the edge of the image according to the quadratic differential signal of the image signal. The edge signal is multiplied by the gain signal in a multiplying circuit. An edge-enhanced-signal generation circuit outputs it as an edge enhanced signal. The image signal is subjected to gamma correction by a gamma correction circuit in a different system from the edge-enhanced-signal generation circuit. A combining circuit combines the gamma-corrected image signal with the edge enhanced signal from the edge-enhanced-signal generation circuit.
摘要翻译：用于执行图像信号的伽马校正和边缘增强的图像信号处理装置的结构被简化。边缘校正增益生成电路根据预先设定的传送特性函数，通过A-LPF的图像信号的电平来生成增益信号。边缘信号生成电路根据图像信号的二次差分信号生成与图像的边缘对应的边缘信号。边沿信号乘以乘法电路中的增益信号。边缘增强信号发生电路将其作为边缘增强信号输出。图像信号通过与边缘增强信号发生电路不同的系统中的伽马校正电路进行伽马校正。组合电路将伽马校正图像信号与来自边缘增强信号发生电路的边缘增强信号组合。

8. 发明申请

US20050185071A1 Image signal processing apparatus 审中-公开
标题翻译：图像信号处理装置
公开(公告)号：US20050185071A1
公开(公告)日：2005-08-25
申请号：US11038529
申请日：2005-01-21
申请人： Tatsuya Takahashi , Tomomichi Nakai , Toshio Nakakuki
发明人： Tatsuya Takahashi , Tomomichi Nakai , Toshio Nakakuki
IPC分类号： G06T5/00 , H04N1/40 , H04N1/407 , H04N1/409 , H04N5/20 , H04N5/202 , H04N5/21 , H04N5/225 , H04N5/217
CPC分类号： H04N5/21 , H04N5/202
摘要： An image signal processing apparatus solves a problem of an increase in noise component contained in an image signal due to the gamma correction when a signal level is in a region where a slope of conversion characteristic is sharp, which problem has been detected in an image signal processing apparatus including gamma correction processing performed for achieving nonlinear conversion. The image signal is input to each of LPFs 40 and 42 which differ in transmission characteristic, and a selector 44 selects either one of outputs from the LPFs to send the selected output to the gamma correction circuit. The switching by the selector 44 is controlled by the filter control circuit 32. In the filter control circuit 32, a comparator 60 compares a signal level of an object pixel with a threshold value R. In the case where the signal level of the object pixel is in the region where the slope of conversion characteristic is sharp (less than R), the selector 44 is so controlled as to select the output from the LPF 42 which has a lower cutoff frequency and a larger noise component elimination effect as compared with the LPF 40.
摘要翻译：图像信号处理装置解决了当信号电平处于转换特性的斜率较大的区域中由于伽马校正而在图像信号中包含的噪声分量增加的问题，在图像信号中检测到该问题包括用于实现非线性转换的伽马校正处理的处理装置。图像信号被输入到传输特性不同的每个LPF 40和42，并且选择器44选择来自LPF的输出中的任一个将所选择的输出发送到伽马校正电路。由选择器44进行的切换由滤波器控制电路32控制。在滤波器控制电路32中，比较器60将目标像素的信号电平与阈值R进行比较。在目标像素的信号电平处于转换特性的斜率较大的区域（小于 R），与LPF 40相比，选择器44被控制为选择具有较低截止频率和较大噪声成分消除效果的LPF 42的输出。

9. 发明申请

US20050174438A1 Image signal processing apparatus 有权
标题翻译：图像信号处理装置
公开(公告)号：US20050174438A1
公开(公告)日：2005-08-11
申请号：US11018485
申请日：2004-12-22
申请人： Toshio Nakakuki
发明人： Toshio Nakakuki
IPC分类号： H04N5/232 , G09G5/00 , G09G5/39 , H04N7/01 , H04N9/07 , H04N9/64 , H04N11/04
CPC分类号： H04N7/0135 , G09G5/005 , G09G2340/0407
摘要： In an image signal processing apparatus, line memories conventionally provided at a latter stage of the apparatus in order to convert a VGA image signal into a CIF image signal are eliminated. Image data of the VGA held in a unit of one line in plural line memories 60 provided in a digital signal processing circuit are weighted and added in a VLPF 62. A factor setting part 76 of the VLPF 62 changes weighting factors according to a positional relation between a position of a generation object line of the CIF and a line of the VGA. The weighting factors are determined so that a characteristic of trapping ½ of a vertical sampling frequency fv is also obtained. The VLPF 62 uses the weighting factors to trap fv/2, and changes the position of the vertical sampling point to a position of each line of the CIF image.
摘要翻译：在图像信号处理装置中，为了将VGA图像信号转换为CIF图像信号，在设备的后一级通常提供的行存储器被消除。在数字信号处理电路中设置的多行存储器60中以一行为单位保持的VGA的图像数据被加权并附加在VLPF 62中。 VLPF 62的因子设定部76根据CIF的生成对象线的位置与VGA的线之间的位置关系来改变加权系数。确定加权因子，使得捕获垂直采样频率fv的1/2的特性也被获得。 VLPF 62使用加权因子来捕获fv / 2，并且将垂直采样点的位置改变为CIF图像的每一行的位置。

10. 发明申请

US20050169541A1 Image signal processing apparatus and image signal processing method 审中-公开
标题翻译：图像信号处理装置和图像信号处理方法
公开(公告)号：US20050169541A1
公开(公告)日：2005-08-04
申请号：US11028917
申请日：2005-01-04
申请人： Toshio Nakakuki
发明人： Toshio Nakakuki
IPC分类号： H04N19/423 , G06K9/36 , G06T1/00 , H04N1/21 , H04N1/40 , H04N1/41 , H04N1/56 , H04N7/24 , H04N19/00 , H04N19/426
CPC分类号： H04N19/426 , H04N19/60
摘要： To provide an image signal processing apparatus including an image signal receiving circuit 26 for receiving continuous image signals for every horizontal line, an image signal processing circuit 30 for reading image data from a memory block 28 and collectively applying processing to the image data for a predetermined number of at least two or more horizontal lines, the memory block 28 including a memory unit having a capacity capable of storing and holding the image data for horizontal lines obtained by adding at least 1 to the predetermined number, and a memory control circuit 24 for storing an image signal in the memory block 28 as image data. In the image signal processing circuit 30, each time the processing for the image data held in memory units for one horizontal line is completed, the memory control circuit 24 stores an image signal newly received in the image signal receiving circuit 26 in a memory unit in which the image data processed by the image signal processing circuit 30 is stored.
摘要翻译：为了提供一种图像信号处理装置，包括用于接收每条水平行的连续图像信号的图像信号接收电路26，用于从存储器块28读取图像数据的图像信号处理电路30，并对图像数据共同对预定的至少两条或多条水平线的数量，存储器块28包括具有能够存储并保持用于通过将至少加1预定数量而获得的水平线的图像数据的容量的存储器单元，以及存储器控制电路24，用于将图像信号存储在存储器块28中作为图像数据。在图像信号处理电路30中，每当对于一条水平行的存储单元中保持的图像数据的处理完成时，存储器控制电路24将新接收在图像信号接收电路26中的图像信号存储在存储单元中由图像信号处理电路30处理的图像数据被存储。

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