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1. 发明授权

US5796430A Video camera with a function to correct defective pixels of solid state image pickup device and method of correcting defective pixels of solid state image pickup device 失效
标题翻译：具有校正固态图像拾取装置的有缺陷像素的功能的摄像机以及校正固态图像拾取装置的有缺陷像素的方法
公开(公告)号：US5796430A
公开(公告)日：1998-08-18
申请号：US786733
申请日：1997-01-27
申请人： Minoru Katoh , Kenji Itoh , Hiroyasu Ohtsubo
发明人： Minoru Katoh , Kenji Itoh , Hiroyasu Ohtsubo
IPC分类号： H04N5/232 , H04N5/228 , H04N5/335 , H04N5/361 , H04N5/365 , H04N5/367 , H04N5/369 , H04N5/372 , H04N5/378 , H04N9/64
CPC分类号： H04N5/367 , H04N5/3656 , H04N5/372
摘要： When defective pixels of a solid state image pickup device of a video camera are corrected by signal processes, a white spot noise is detected by closing an iris and by comparing the signal level and a level of only a dark current. Further, in this case, a gain of an AGC circuit for controlling a gain of a video signal is raised and a precise detection is executed. By executing such a detecting operation at the time of turn-on or turn-off of a power source, the user is not annoying. In the ordinary photographing, a reference level in detection of a white spot noise is set to an optimum value in accordance with a temperature of the solid state image pickup device or its peripheral temperature or the gain of the AGC circuit so that the white spot noise detection is not influenced by the temperature of the solid state image pickup device or the operating state of the AGC circuit.
摘要翻译：当通过信号处理校正摄像机的固态图像拾取装置的缺陷像素时，通过闭合光圈并通过比较信号电平和仅暗电流的电平来检测白点噪声。此外，在这种情况下，提高用于控制视频信号的增益的AGC电路的增益，并且执行精确的检测。通过在电源的接通或断开时执行这种检测操作，用户不烦人。在普通拍摄中，根据固体摄像装置的温度或其周围温度或AGC电路的增益，将白点噪声检测的基准电平设定为最佳值，使得白点噪声检测不受固态图像拾取装置的温度或AGC电路的操作状态的影响。

2. 发明授权

US5625413A Video camera with a function to correct defective pixels of solid state image pickup device and method of correcting defective pixels of solid state image 失效
标题翻译：具有校正固态图像拾取装置的有缺陷像素的功能的摄像机以及校正固态图像的有缺陷像素的方法
公开(公告)号：US5625413A
公开(公告)日：1997-04-29
申请号：US470010
申请日：1995-06-06
申请人： Minoru Katoh , Kenji Itoh , Hiroyasu Ohtsubo
发明人： Minoru Katoh , Kenji Itoh , Hiroyasu Ohtsubo
IPC分类号： H04N5/232 , H04N5/228 , H04N5/335 , H04N5/361 , H04N5/365 , H04N5/367 , H04N5/369 , H04N5/372 , H04N5/378 , H04N9/64
CPC分类号： H04N5/367 , H04N5/3656 , H04N5/372
摘要： When defective pixels of a solid state image pickup device of a video camera are corrected by signal processes, a white spot noise is detected by closing an iris and by comparing the signal level and a level of only a dark current. Further, in this case, a gain of an AGC circuit for controlling a gain of a video signal is raised and a precise detection is executed. By executing such a detecting operation at the time of turn-on or turn-off of a power source, the user is not annoying. In the ordinary photographing, a reference level in detection of a white spot noise is set to an optimum value in accordance with a temperature of the solid state image pickup device or its peripheral temperature or the gain of the AGC circuit so that the white spot noise detection is not influenced by the temperature of the solid state image pickup device or the operating state of the AGC circuit.
摘要翻译：当通过信号处理校正摄像机的固态图像拾取装置的缺陷像素时，通过闭合光圈并通过比较信号电平和仅暗电流的电平来检测白点噪声。此外，在这种情况下，提高用于控制视频信号的增益的AGC电路的增益，并且执行精确的检测。通过在电源的接通或断开时执行这种检测操作，用户不烦人。在普通拍摄中，根据固体摄像装置的温度或其周围温度或AGC电路的增益，将白点噪声检测的基准电平设定为最佳值，使得白点噪声检测不受固态图像拾取装置的温度或AGC电路的操作状态的影响。

3. 发明授权

US5483290A Video camera apparatus including programmable timing generation circuit 失效
标题翻译：包括可编程时序产生电路的摄像机装置
公开(公告)号：US5483290A
公开(公告)日：1996-01-09
申请号：US132309
申请日：1993-10-06
申请人： Hiroyasu Ohtsubo , Kazuhiro Koshio
发明人： Hiroyasu Ohtsubo , Kazuhiro Koshio
IPC分类号： H04N5/06 , H04N5/225 , H04N5/335 , H04N5/372 , H04N9/04 , H04N9/475
CPC分类号： H04N5/06 , H04N5/335 , H04N9/04 , H04N9/045 , H04N2209/046
摘要： A video camera in which an output signal from a solid-state image sensor is converted into the corresponding digital signal at the horizontal reading cycle of the output signal, and the digital signal is digital-processed with a first predetermined clock (fs) synchronous with the reading cycle to provide a luminance signal and a color difference signal. This video camera comprises data clock converter for latching the color signals; control circuit for detecting the phase of the changing point of the color signal generated; phase correction circuit for receiving the color signal after data clock conversion from said data clock converter, and producing a phase-corrected color difference signal by selecting, in accordance with said phase detecting signal from the control circuit, either one of the color difference signal having an intermediate phase obtained by interpolating the signals before and after the changing point of the received color signal and said color difference signal after data clock conversion; and modulation circuit for quadrature-balanced-modulating the color difference signal supplied from said phase correction circuit to provide a modulated color signal.
摘要翻译：一种摄像机，其中来自固态图像传感器的输出信号在输出信号的水平读取周期被转换成相应的数字信号，数字信号以与第一预定时钟（fs）同步的数字处理提供亮度信号和色差信号的读取周期。该摄像机包括用于锁存彩色信号的数据时钟转换器; 控制电路，用于检测所生成的彩色信号的变化点的相位; 相位校正电路，用于在从所述数据时钟转换器进行数据时钟转换之后接收彩色信号，并且通过根据来自控制电路的所述相位检测信号选择色差信号中的任一个，产生相位校正的色差信号，所述色差信号具有通过在数据时钟转换之后内插所接收的彩色信号的变化点之前和之后的信号和所述色差信号而获得的中间相位; 以及用于对从所述相位校正电路提供的色差信号进行正交平衡调制以提供调制色信号的调制电路。

4. 发明授权

US5430499A Apparatus for correcting vertical aperture of an image 失效
标题翻译：用于校正图像的垂直孔径的装置
公开(公告)号：US5430499A
公开(公告)日：1995-07-04
申请号：US118647
申请日：1993-09-10
申请人： Kouji Asada , Hiroyasu Ohtsubo , Masaru Noda
发明人： Kouji Asada , Hiroyasu Ohtsubo , Masaru Noda
IPC分类号： H04N9/04 , H04N5/208 , H04N9/68
CPC分类号： H04N5/208
摘要： An apparatus for correcting a vertical aperture of an image generates a vertical aperture correction signal having no line pair component contained therein from a signal read out at every frame from an imaging apparatus using an imaging device of pixel mixing system, the circuit arrangement for realizing the vertical aperture correcting apparatus being such that an original signal, a 2H (H is a horizontal scanning period) delay signal and a 4H delay signal are generated from the imaging device and a sum of the original signal and the 4H delay signal is subtracted from the 2H delay signal to thereby generate a vertical aperture correction signal and also the circuit arrangement being such that luminance signal spectral characteristics are approximated at every horizontal scanning by adjusting a gain of a signal read out from the imaging device.
摘要翻译：用于校正图像的垂直孔径的装置从使用像素混合系统的成像装置的成像装置的每帧读出的信号中产生没有包含线对成分的垂直孔径校正信号，该电路装置用于实现垂直孔径校正装置使得从成像装置产生原始信号2H（H是水平扫描周期）延迟信号和4H延迟信号，并且从原始信号和4H延迟信号的和中减去原始信号 2H延迟信号，从而产生垂直孔径校正信号，并且电路装置使得通过调节从成像装置读出的信号的增益在每个水平扫描期间近似亮度信号光谱特性。

5. 发明授权

US4855812A Picture synthesizing apparatus with gain control system 失效
标题翻译：具有增益控制系统的图像合成装置
公开(公告)号：US4855812A
公开(公告)日：1989-08-08
申请号：US133360
申请日：1987-12-15
申请人： Morito Rokuda , Hiroyasu Ohtsubo , Michio Masuda , Hideo Nishijima , Kaneyuki Okamoto
发明人： Morito Rokuda , Hiroyasu Ohtsubo , Michio Masuda , Hideo Nishijima , Kaneyuki Okamoto
IPC分类号： H04N5/45
CPC分类号： H04N5/45
摘要： A picture synthesizing apparatus in which a main picture is displayed with a part inlaid with a subsidiary picture. The apparatus includes an AGC circuit for regulating the gain of the main video signal and an AGC circuit for regulating the gain of a subsidiary video signal. Alternatively, the chrominance signal level of the subsidiary video signal can be regulated in accordance with the chrominance signal level of the main video signal.
摘要翻译：一种图像合成装置，其中显示具有附属图像的部分的主图像。该装置包括用于调节主视频信号的增益的AGC电路和用于调节辅助视频信号的增益的AGC电路。或者，可以根据主视频信号的色度信号电平来调整辅助视频信号的色度信号电平。

6. 发明授权

US07110451B2 Bitstream transcoder 失效
公开(公告)号：US07110451B2
公开(公告)日：2006-09-19
申请号：US10279533
申请日：2002-10-23
申请人： Taku Nakamura , Naoki Yamamoto , Takuya Imaide , Hiroyasu Ohtsubo
发明人： Taku Nakamura , Naoki Yamamoto , Takuya Imaide , Hiroyasu Ohtsubo
IPC分类号： H04N7/12
CPC分类号： H04N19/59 , H04N19/40 , H04N19/48 , H04N19/90
摘要： In a bitstream transcoder, the computational cost and the memory area are suppressed so that stream transcoding is performed with a reduced number of times of computing and a reduced memory area. The transcoder includes a VLD portion 11 for performing VLD on a bitstream encoded in MPEG-2 to output quantized DCT coefficients; an IQ portion 12 for receiving the coefficients, and outputting inverse-quantized DCT coefficients; a coefficient table 132 for storing a transformation matrix obtained by multiplying transformation matrices for operating band-limiting filter, IDCT, down-sampling and DCT, respectively, together in advance; a DCT scaling portion 13 for performing down-sampling on the DCT coefficients by use of the transformation matrix; a Q portion 15 for outputting quantized DCT coefficients down-sampled horizontally and vertically; and a VLC portion 16 for encoding the quantized DCT coefficients in MPEG-4 to output a bitstream.

7. 发明授权

US5990946A Signal reading and processing arrangement of still picture recording apparatus 失效
标题翻译：静止图像记录装置的信号读取和处理装置
公开(公告)号：US5990946A
公开(公告)日：1999-11-23
申请号：US921569
申请日：1997-09-02
申请人： Hiroshi Sakurai , Hiroyasu Ohtsubo , Kouji Asada , Masaru Noda , Noriyuki Iura , Takuya Imaide , Junji Kamimura , Hiroyuki Komatsu , Toshiro Kinugasa
发明人： Hiroshi Sakurai , Hiroyasu Ohtsubo , Kouji Asada , Masaru Noda , Noriyuki Iura , Takuya Imaide , Junji Kamimura , Hiroyuki Komatsu , Toshiro Kinugasa
IPC分类号： H04N5/235 , H04N9/04 , H04N5/262 , H04N9/07
CPC分类号： H04N5/235 , H04N9/045 , H04N2209/046 , H04N2209/049
摘要： A still picture recording digital camera including a light quantity limiter for interrupting incident light to the camera; an image pickup unit including a pixel for converting the incident light to an electric pixel signal and outputting the pixel signal as a digital image signal; a signal processor for generating a digital image signal having a predetermined format; a recording unit for recording the digital image signal output from the image pickup unit or the signal processor; the light quantity limiter limiting the incident light quantity to a predetermined quantity and then interrupting the incident light; the image pickup unit outputting a dynamic picture digital image signal when the light quantity limiter is limiting the incident light quantity, and outputting a still picture image signal after the light quantity limiter has interrupted the incident light; and the signal processor performing different signal processing operations when the signal processor has received a digital image signal for a dynamic picture and a digital image signal for a still picture.
摘要翻译：一种静止图像记录数字照相机，包括用于中断入射到摄像机的光量限制器; 图像拾取单元，包括用于将入射光转换为电像素信号并将像素信号作为数字图像信号输出的像素; 用于产生具有预定格式的数字图像信号的信号处理器; 记录单元，用于记录从图像拾取单元或信号处理器输出的数字图像信号; 光量限制器将入射光量限制到预定量，然后中断入射光; 当光量限制器限制入射光量时，图像拾取单元输出动态图像数字图像信号，并且在光量限制器中断入射光之后输出静止图像信号; 并且当信号处理器已经接收到用于动态画面的数字图像信号和静止图像的数字图像信号时，信号处理器执行不同的信号处理操作。

8. 发明授权

US5512945A Still picture recording digital camera which outputs a dynamic picture when incident light is limited and outputs a still picture when incident light is interrupted 失效
标题翻译：静态图像记录数码相机，当入射光受到限制时输出动态图像，并在入射光中断时输出静态图像
公开(公告)号：US5512945A
公开(公告)日：1996-04-30
申请号：US164798
申请日：1993-12-10
申请人： Hiroshi Sakurai , Hiroyasu Ohtsubo , Kouji Asada , Masaru Noda , Noriyuki Iura , Takuya Imaide , Junji Kamimura , Hiroyuki Komatsu , Toshiro Kinugasa
发明人： Hiroshi Sakurai , Hiroyasu Ohtsubo , Kouji Asada , Masaru Noda , Noriyuki Iura , Takuya Imaide , Junji Kamimura , Hiroyuki Komatsu , Toshiro Kinugasa
IPC分类号： H04N5/235 , H04N9/04 , H04N5/225
CPC分类号： H04N5/235 , H04N9/045 , H04N2209/046 , H04N2209/049
摘要： A still picture recording digital camera including a light quantity limiter for interrupting incident light to the camera; an image pickup unit including a pixel for converting the incident light to an electric pixel signal and outputting the pixel signal as a digital image signal; a signal processor for generating a digital image signal having a predetermined format; a recording unit for recording the digital image signal output from the image pickup unit or the signal processor; the light quantity limiter limiting the incident light quantity to a predetermined quantity and then interrupting the incident light; the image pickup unit outputting a dynamic picture digital image signal when the light quantity limiter is limiting the incident light quantity, and outputting a still picture image signal after the light quantity limiter has interrupted the incident light; and the signal processor performing different signal processing operations when the signal processor has received a digital image signal for a dynamic picture and a digital image signal for a still picture.
摘要翻译：一种静止图像记录数字照相机，包括用于中断入射到摄像机的光量限制器; 图像拾取单元，包括用于将入射光转换为电像素信号并将像素信号作为数字图像信号输出的像素; 用于产生具有预定格式的数字图像信号的信号处理器; 记录单元，用于记录从图像拾取单元或信号处理器输出的数字图像信号; 光量限制器将入射光量限制到预定量，然后中断入射光; 当光量限制器限制入射光量时，图像拾取单元输出动态图像数字图像信号，并且在光量限制器中断入射光之后输出静止图像信号; 并且当信号处理器已经接收到用于动态画面的数字图像信号和用于静止图像的数字图像信号时，信号处理器执行不同的信号处理操作。

9. 发明授权

US5404165A Apparatus and method for processing signals of an imaging device 失效
标题翻译：用于处理成像装置的信号的装置和方法
公开(公告)号：US5404165A
公开(公告)日：1995-04-04
申请号：US58672
申请日：1993-05-10
申请人： Hiroyasu Ohtsubo , Masaru Noda , Michio Masuda
发明人： Hiroyasu Ohtsubo , Masaru Noda , Michio Masuda
IPC分类号： H04N9/69 , H04N9/73 , H04N5/202
CPC分类号： H04N9/69 , H04N9/735
摘要： An apparatus and method for processing signals of an imaging device comprising a detection circuit for detecting the color temperature of a light source for illuminating an object of which the image is picked up and a circuit for varying .gamma. correction characteristics for chrominance signals, whereby the .gamma. correction characteristics are changed to reduce the gains for low level regions of input signals to .gamma. correction circuits in accordance with the color temperature, thereby enabling the final quantize noise to be reduced.
摘要翻译：一种用于处理成像装置的信号的装置和方法，包括用于检测用于照亮被拍摄图像的物体的光源的色温的检测电路和用于改变色度信号的伽马校正特性的电路，校正特性被改变以根据色温将输入信号的低电平区域的增益减小到伽马校正电路，从而能够减少最终的量化噪声。

10. 发明授权

US4984083A Image processing system 失效
标题翻译：图像处理系统
公开(公告)号：US4984083A
公开(公告)日：1991-01-08
申请号：US373630
申请日：1989-06-28
申请人： Kaneyuki Okamoto , Hideo Nishijima , Michio Masuda , Hiroyasu Ohtsubo , Koichi Ono
发明人： Kaneyuki Okamoto , Hideo Nishijima , Michio Masuda , Hiroyasu Ohtsubo , Koichi Ono
IPC分类号： H04N5/45
CPC分类号： H04N5/45
摘要： An image processing system comprising a first and second video signal sources providing a main-field video signal and sub-field video signal, respectively, means for compressing the sub-field video signal on the time axis, and a signal merging unit which merges the compressed sub-field video signal into the main-field video signal and delivers the resulting signal to a television receiver set, wherein the signal compressing means comprising a dual-port memory having a first and second ports and operating to compress the sub-field video signal on the time axis and store the compressed signal, and control means for controlling the reading and writing of the memory for the sub-field video signal, the control means comprising a first control section for writing the sub-field video signal into the first port of said memory, a second control section for transferring a signal from the first port to the second port, and a third control section for reading out a signal from the second port, said memory implementing the reading operation and writing operation in asynchronous manner.
摘要翻译：一种图像处理系统，包括分别提供主视频信号和副场视频信号的第一和第二视频信号源，用于在时间轴上压缩子场视频信号的装置，以及合并该视场信号的信号合并单元将压缩的子场视频信号转换成主视频信号并将所得到的信号传送到电视接收机组，其中信号压缩装置包括具有第一和第二端口的双端口存储器，并且操作以压缩子场视频信号在时间轴上并存储压缩信号，以及控制装置，用于控制子场视频信号的存储器的读和写，该控制装置包括第一控制部分，用于将子视频信号写入第一所述存储器的端口，用于将信号从第一端口传送到第二端口的第二控制部分，以及用于从第二端口读出信号的第三控制部分， d存储器以异步方式实现读操作和写操作。

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