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21. 发明授权

US4910598A Solid state television camera with circuit for cancelling noise due to crystal defects 失效
标题翻译：具有消除由于晶体缺陷引起的噪声的电路的固态电视摄像机
公开(公告)号：US4910598A
公开(公告)日：1990-03-20
申请号：US255329
申请日：1988-10-11
申请人： Hiroyuki Itakura , Takashi Asaida
发明人： Hiroyuki Itakura , Takashi Asaida
IPC分类号： H04N5/217 , H04N5/335 , H04N5/349 , H04N5/353 , H04N5/367 , H04N5/3728 , H04N5/378
CPC分类号： H04N5/367 , H04N5/23245
摘要： In a solid state television camera for producing output signals corresponding to an object image detected by a solid state image sensor, positions of picture elements having crystal defects and the output signal levels of such defective components are previously stored as the defective picture element data in a memory device. Defect compensating signals corresponding to the actual image pickup operating states are formed on the basis of the defect picture element data read out from the memory device to correct the output signals of such defective picture elements in a manner to provide the image pickup output signals with superior picture quality.
摘要翻译：在用于产生与由固体图像传感器检测到的对象图像相对应的输出信号的固态电视摄像机中，具有晶体缺陷的图像元素的位置和这些缺陷分量的输出信号电平预先作为缺陷图像元素数据存储在存储设备。基于从存储装置读出的缺陷像素数据形成与实际摄像操作状态相对应的缺陷补偿信号，以便以提供具有优越性的图像拾取输出信号的方式校正这些缺陷像素的输出信号图像质量。

22. 发明授权

US4816917A Clamp circuit for a solid-state image device 失效
标题翻译：用于固态图像器件的钳位电路
公开(公告)号：US4816917A
公开(公告)日：1989-03-28
申请号：US163720
申请日：1988-03-03
申请人： Isamu Yamamoto , Takashi Asaida
发明人： Isamu Yamamoto , Takashi Asaida
IPC分类号： H04N5/18 , H04N5/335 , H04N5/341 , H04N5/359 , H04N5/369 , H04N5/3728 , H04N5/378 , H04N3/14
CPC分类号： H04N5/361
摘要： A clamp circuit for a solid-state imaging device which includes a clamp circuit for clamping at a black reference voltage level a video signal at a signal level which is obtained when an optical black portion formed on the solid-state imaging device is read, a detection circuit for detecting the increase in voltage of the optical black portion, a circuit for interrupting vertical transfer clock signals of the solid-state imaging device during at least one horizontal line interval during a vertical blanking period, and a switching circuit which when the detection means detects an abnormal voltage of the optical black portion, supplies a clamp pulse which is generated with a timing associated with the interruption of the transfer clock signals instead of the clamp pulse of the optical black portion.A circuit for detecting a voltage abnormality of the optical black portion provided to an imaging surface, and a circuit for interrupting the vertical transfer clock signals during at least one horizontal line period in the vertical blanking period are connected in the clamp circuit of the solid-state imaging device and when an abnormally high voltage is generated at the optical black portion, a video signal portion which is cleared upon interruption of the transfer clock signals is overincidence state, is prevented.

23. 发明授权

US4581651A Smear reduction in solid state image pickup device camera 失效
标题翻译：固态摄像装置相机中的削减图像
公开(公告)号：US4581651A
公开(公告)日：1986-04-08
申请号：US474814
申请日：1983-03-10
申请人： Katsuro Miyata , Takashi Asaida
发明人： Katsuro Miyata , Takashi Asaida
IPC分类号： H01F1/153 , C22C19/07 , C22C45/04 , G03B7/081 , H01F1/14 , H04N5/217 , H04N5/335 , H04N5/359 , H04N5/3725 , H04N5/3728
CPC分类号： H04N5/2175
摘要： A charge-coupled device (CCD) camera with a smear reducer circuit is disclosed, which includes a CCD for generating a pickup signal, a memory for storing an extracted smear signal from the pickup signal and, a level selector circuit for cutting off a noise contained in the smear signal with level less than a predetermined level in the smear signals from the memory. The output of this level selector circuit is subtracted from the pickup signal to thereby obtain a pickup signal with the smear reduced as well as a noise component suppressed.
摘要翻译：公开了一种具有涂片减速电路的电荷耦合器件（CCD）照相机，其包括用于产生拾取信号的CCD，用于存储来自拾取信号的提取的拖尾信号的存储器，以及用于切断噪声的电平选择器电路包含在来自存储器的拖尾信号中的水平小于预定水平的拖尾信号中。从拾取信号中减去该电平选择器电路的输出，从而获得减少了拖尾以及抑制噪声成分的拾取信号。

24. 发明授权

US4520386A Color video signal processing apparatus 失效
标题翻译：彩色视频信号处理装置
公开(公告)号：US4520386A
公开(公告)日：1985-05-28
申请号：US391992
申请日：1982-06-25
申请人： Takashi Asaida
发明人： Takashi Asaida
IPC分类号： H04N9/64 , H04N9/65 , H04N9/67 , H04N11/04 , H04N11/10 , H04N9/32
CPC分类号： H04N9/64 , H04N11/04
摘要： A color video signal processing apparatus which utilizes a digital luminance data and first and second color difference signals which are digitized at a first sampling frequency and formed by matrix operation wherein at least one of the first or second color difference data is sampled at a second sampling frequency which comprises the first sampling frequency divided by an integer with the band width of the sample output being limited to a predetermined band width with a digital filter and the luminance and first and second color difference signals which have had their band width limited comprising the color video signal which is to be transmitted.
摘要翻译：一种彩色视频信号处理装置，其利用数字亮度数据和以第一采样频率被数字化并通过矩阵运算形成的第一和第二色差信号，其中第一或第二色差数据中的至少一个在第二采样频率，其包括用数字滤波器将采样输出的带宽限制为预定带宽的整数除以第一采样频率，并且具有其带宽限制的亮度和第一和第二色差信号包括颜色要发送的视频信号。

25. 发明授权

US4516172A Solid state television camera with iris control 失效
标题翻译：具有虹膜控制的固态电视摄像机
公开(公告)号：US4516172A
公开(公告)日：1985-05-07
申请号：US405571
申请日：1982-08-05
申请人： Katsuro Miyata , Takashi Asaida , Fumio Nagumo
发明人： Katsuro Miyata , Takashi Asaida , Fumio Nagumo
IPC分类号： H04N5/238 , H04N5/335 , H04N5/359 , H04N5/3725 , H04N5/378 , H04N5/16
CPC分类号： H04N5/238
摘要： A solid state television camera having a solid state image sensing device, such as CCD image sensing device and an iris for controlling the amount of light from an image irradiated on the image sensing device. The iris is controlled by the peak level of a smear signal of a horizontal scanning line during a vertical blanking interval so that the smear signal contained in a video signal from the image sensing device is reduced. Further, the iris can be controlled by the average level of the smear signal instead of the average level of the video signal of one field as the smear signal has the whole information of the image of one field, that causes the construction of detecting circuit to be very simple and the fidelity of the iris control to be high.
摘要翻译：具有固态摄像装置的固态电视摄像机，例如CCD摄像装置和用于控制从图像摄影装置上照射的图像的光量的光圈。在垂直消隐间隔期间，虹膜由水平扫描线的拖尾信号的峰值电平控制，使得包含在来自图像感测装置的视频信号中的拖影信号减小。此外，由于拖尾信号具有一个场的图像的整个信息，所以可以通过拖尾信号的平均电平而不是一个场的视频信号的平均电平来控制光圈，这导致检测电路的构造非常简单，虹膜控制的保真度很高。

26. 发明授权

US6043853A Apparatus and method for emphasizing an outline of a video signal 失效
标题翻译：用于强调视频信号的轮廓的装置和方法
公开(公告)号：US6043853A
公开(公告)日：2000-03-28
申请号：US838316
申请日：1997-04-08
申请人： Shingo Shimazaki , Takashi Asaida , Takashi Kameyama , Yoshiaki Satou
发明人： Shingo Shimazaki , Takashi Asaida , Takashi Kameyama , Yoshiaki Satou
IPC分类号： H04N5/208 , H04N9/68
CPC分类号： H04N5/208
摘要： Video camera which emphasizes an outline of a video signal produced thereby. A detail signal of a video image represented by the video signal is generated and which represents a vertical outline emphasis signal. Edges of the video image and burst-like portions of the video signal are detected, and an edge detection signal is generated that corresponds in one manner to the detected edges and that corresponds in another manner to the detected burst portions. The detail signal is adjusted by the edge detection signal or by a cross color suppression signal generated from the vertical outline emphasis signal. The video signal then is modified by the adjusted detail signal so as to produce the outline emphasized video signal. The detail signal may also be adjusted by a gain setting signal that corresponds to the vertical outline emphasis signal and which is compressed in level when the vertical outline emphasis signal is relatively low.
摘要翻译：视频摄像机，其强调由此产生的视频信号的轮廓。产生由视频信号表示的视频图像的细节信号，其表示垂直轮廓加重信号。检测视频信号的视频图像和脉冲串部分的边缘，并且生成与检测到的边缘相对应的边缘检测信号，并且以与检测到的突发部分相对应的边缘检测信号。细节信号由边缘检测信号或由垂直轮廓强调信号产生的交叉色抑制信号进行调整。然后，通过调整的细节信号修改视频信号，以产生轮廓强调的视频信号。细节信号也可以通过对应于垂直轮廓加重信号的增益设置信号来调节，并且当垂直轮廓加重信号相对较低时被加压。

27. 发明授权

US5638134A Digital filter for picture data and digital filter system 失效
标题翻译：数字滤波器用于图像数据和数字滤波系统
公开(公告)号：US5638134A
公开(公告)日：1997-06-10
申请号：US494551
申请日：1995-06-26
申请人： Takashi Kameyama , Takashi Asaida
发明人： Takashi Kameyama , Takashi Asaida
IPC分类号： H04N5/14 , H04N5/21 , H04N9/64
CPC分类号： H04N9/646 , H04N5/21 , H04N5/14
摘要： A digital filter for picture data is disclosed which has a first low-pass filter having relatively steep cut-off characteristics for filtering input digital picture data, a second low-pass filter having relatively moderate cut-off characteristics for filtering input digital picture data, a mixing unit for mixing digital picture data filtered by the first and second low-pass filters, a step detecting unit for detecting changes in step-like values of the input picture data, and a control unit for controlling the mixing ratio of the digital picture data from the first and second low-pass filters by the mixing unit based on step detection outputs of the step detection unit. There is also provided a digital filter system for color picture data having the digital filter for each color.
摘要翻译：公开了一种用于图像数据的数字滤波器，其具有用于滤波输入数字图像数据的具有相对陡峭截止特性的第一低通滤波器，具有用于滤波输入数字图像数据的相对适度的截止特性的第二低通滤波器，用于混合由第一和第二低通滤波器滤波的数字图像数据的混合单元，用于检测输入图像数据的阶梯状值的变化的步长检测单元，以及用于控制数字图像的混合比的控制单元基于步进检测单元的步骤检测输出，通过混合单元来自第一和第二低通滤波器的数据。还提供了一种用于彩色图像数据的数字滤波器系统，其具有用于每种颜色的数字滤波器。

28. 发明授权

US5299022A Portable video camera and recording apparatus 失效
公开(公告)号：US5299022A
公开(公告)日：1994-03-29
申请号：US603325
申请日：1990-10-25
申请人： Fumio Nagumo , Takashi Asaida , Kenji Nakamura , Yoshio Chiba
发明人： Fumio Nagumo , Takashi Asaida , Kenji Nakamura , Yoshio Chiba
IPC分类号： H04N9/79 , H04N5/77 , H04N9/797 , H04N9/804 , H04N9/808 , H04N9/825 , H04N9/86 , H04N9/80
CPC分类号： H04N9/825 , H04N9/797 , H04N9/86 , H04N5/772 , Y10S358/906
摘要： A portable video camera and recording apparatus is comprised of a video camera section and a recording section. The video camera section is comprised of a CCD, analogue-to-digital converters for converting signals from the CCD into digital form. The digital signals are then processed, converted into analogue form, processed in analog form, and then output as the composite video signal. A digital luminance signal and either a digital composite color signal or a plurality of digital color difference signals are received as inputs into the recording section. If the digital composite color signal is received, then the signals are time-base-compressed, converted into analogue form, the composite color signal is frequency converted and filtered and the luminance signal is frequency modulated and filtered. Next, the signals are added together and recorded onto a recording medium. If the digital color difference signals are received, the digital color difference signals are multiplexed together, converted into analogue form, frequency modulated, filtered and then recorded onto one track on the recording medium. The digital luminance signal is time-base-compressed, converted into analogue form, frequency modulated, filtered, and then recorded onto a second track on the recording medium.

29. 发明授权

US5255081A Color television camera apparatus and method for producing an analog video signal for use with a plurality of video standard system 失效
标题翻译：彩色电视摄像机装置和用于产生用于多个视频标准系统的模拟视频信号的方法
公开(公告)号：US5255081A
公开(公告)日：1993-10-19
申请号：US839164
申请日：1992-02-21
申请人： Kazuyoshi Miyamoto , Takashi Asaida
发明人： Kazuyoshi Miyamoto , Takashi Asaida
IPC分类号： H04N9/04 , H04N9/09 , H04N9/64 , H04N9/65 , H04N11/14
CPC分类号： H04N9/045 , H04N2209/046
摘要： In a color television camera apparatus, a 2fs-rate luminance signal and fs-rate chrominance signals are selectively generated by a matrix circuit 8, in conformity with a plurality of standard systems, from 2fs-rate three-color image pick-up signals generated by an image signal pick-up unit. The fs-rate chrominance signals are modulated by a modulating circuit 12 into fs-rate modulated chrominance signals which are converted by a rate converter 13 into 2fs-rate modulated chrominance signals. The 2fs-rate luminance signals and the 2fs-rate modulated chrominance signals are combined by an adder 14 into 2fs-rate digital composite video signals which are converted by a D/A converter 15 into analog composite video signals. In this manner, analog composite video signals, in which the bandwidth of the luminance signals has been enhanced up to the sampling frequency fs, may be selectively outputted in conformity with a plurality of standard systems.

30. 发明授权

US5103299A Signal processing circuit for solid state imaging apparatus including digital enhancement circuit 失效
标题翻译：用于固态成像装置的信号处理电路，包括数字增强电路
公开(公告)号：US5103299A
公开(公告)日：1992-04-07
申请号：US592289
申请日：1990-10-03
申请人： Takashi Asaida
发明人： Takashi Asaida
IPC分类号： H04N9/04 , H04N9/64
CPC分类号： H04N9/646 , H04N9/045
摘要： A signal processing apparatus for a solid-state imaging device in which an imaging output signal from a solid-state image sensor of an imaging section in the imaging device having a spatial offset is digitized and formed into a detail signal utilized for image enhancement by digital signal processing. More specifically, a first delay circuit having at least one delay unit which imposes a dealy time of approximately one horizontal scanning period receives a digitized green color imaging signal having the spatial offset. Signal synthesis is then performed in a first synthesis circuit so as to limit the bandwidth of the green color imaging signal in a perpendicular direction. A second delay circuit having at least one digital delay unit which imposes a delay time of approximately one horizontal scanning period receives one of a digitized red or blue color imaging signal or a combined red and blue digitized color imaging signal. Signal synthesis is then performed by a second synthesis unit so as to limit the bandwidth of the red or blue digitized color imaging signal or the combined red and blue digitized color imaging signal in the perpendicular direction. Equal amounts of selected outputs from the first and second synthesis units are summed together in a summation unit and outputted through a digital filter so as to form the horizontal detail signal.

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