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1. 发明授权

US5331411A Integrated circuit for processing digital signals in video camera having electronic zooming function 失效
标题翻译：用于处理具有电子变焦功能的摄像机中的数字信号的集成电路
公开(公告)号：US5331411A
公开(公告)日：1994-07-19
申请号：US784228
申请日：1991-10-29
申请人： Kiyotada Kawakami , Masao Takuma , Tooru Asaeda , Tooru Yamamoto , Haruhiko Murata , Hirotsugu Murashima , Tohru Watanabe , Masashi Honzawa , Keiichi Tanii
发明人： Kiyotada Kawakami , Masao Takuma , Tooru Asaeda , Tooru Yamamoto , Haruhiko Murata , Hirotsugu Murashima , Tohru Watanabe , Masashi Honzawa , Keiichi Tanii
IPC分类号： H04N5/225 , H04N5/262 , H04N9/07 , H04N9/64 , H04N9/74 , H04N3/223 , H04N5/232 , H04N9/04
CPC分类号： H04N9/74 , H04N5/2628 , H04N2209/046
摘要： An output from a solid state image sensing device spatially modulated by a color filter is A/D converted and stored in a field memory. Digital signals read from the field memory during electronic zooming are successively delayed by 1H period by means of first, second and third 1H delay elements connected in series. The output from the field memory and outputs from the first, second and third 1H delay elements are separated into luminance components and line sequential color components by first to fourth Y/C separating circuits, respectively. A first set of three primary color signals are calculated based on outputs from the first, second and third Y/C separating circuits, and a second set of three primary color signals are calculated based on outputs from the second, third and fourth Y/C separating circuits. Three primary color signals corresponding to a new display point formed along with the execution of the electronic zooming function are formed based on the calculated two sets of three primary color signals, and a luminance signal corresponding to the new display point is formed based on outputs from the second and third Y/C separating circuits.
摘要翻译：由滤色器空间调制的固态图像感测装置的输出被A / D转换并存储在场存储器中。在电子变焦期间从现场存储器读取的数字信号通过串联连接的第一，第二和第三1H延迟元件连续延迟1H周期。来自场存储器的输出和来自第一，第二和第三1H延迟元件的输出分别由第一至第四Y / C分离电路分离成亮度分量和行顺序颜色分量。基于来自第一，第二和第三Y / C分离电路的输出计算第一组三原色信号，并且基于来自第二，第三和第四Y / C分离电路的输出来计算第二组三原色信号分离电路。基于计算出的两组三原色信号形成与执行电子缩放功能一起形成的新显示点的三原色信号，并且基于来自第二和第三Y / C分离电路。

2. 发明授权

US5369436A Automatic focusing apparatus for automatically matching focus in response to video signal based on extracted high frequency component of non-linear processed luminance signal 失效
标题翻译：自动对焦装置，用于基于提取的非线性处理亮度信号的高频分量来自动匹配对视频信号的聚焦
公开(公告)号：US5369436A
公开(公告)日：1994-11-29
申请号：US11527
申请日：1993-01-29
申请人： Kiyotada Kawakami , Masao Takuma , Tooru Asaeda , Tooru Yamamoto , Haruhiko Murata
发明人： Kiyotada Kawakami , Masao Takuma , Tooru Asaeda , Tooru Yamamoto , Haruhiko Murata
IPC分类号： G02B7/28 , H04N5/232 , H04N5/202
CPC分类号： H04N5/23212
摘要： The present invention relates to an automatic focusing apparatus which permits an automatic focusing operation to occur with a high accuracy irrespective of the luminance of an object being sensed. The automatic focusing apparatus includes a focus lens, an image sensor, a focus motor for changing the position of the focus lens, a Y/C separating circuit for separating a luminance signal Y from the output of the image sensor, a non-linear circuit for subjecting the separated luminance signal Y to a non-linear processing, a high pass filter (HPE) extracting a high frequency component from the output of the non-linear circuit, an integrating circuit for integrating the extracted high frequency component and an in-focus detecting circuit for controlling the position of the focus lens based on the result of integration.
摘要翻译：本发明涉及一种自动对焦装置，其允许以高精度发生自动聚焦操作，而不管被感测物体的亮度如何。自动对焦装置包括聚焦透镜，图像传感器，用于改变聚焦透镜的位置的聚焦电机，用于将亮度信号Y与图像传感器的输出分离的Y / C分离电路，非线性电路为了将分离的亮度信号Y进行非线性处理，从非线性电路的输出提取高频分量的高通滤波器（HPE），用于对提取的高频分量进行积分的积分电路，聚焦检测电路，用于根据积分的结果控制聚焦透镜的位置。

3. 发明授权

US5337083A Digital video camera suppressing low-saturation chrominance 失效
标题翻译：数字摄像机抑制低饱和度色度
公开(公告)号：US5337083A
公开(公告)日：1994-08-09
申请号：US45738
申请日：1993-04-14
申请人： Haruhiko Murata , Yukio Mori , Akihiro Maenaka , Masao Takuma , Kiyotada Kawakami , Tooru Yamamoto , Tooru Asaeda
发明人： Haruhiko Murata , Yukio Mori , Akihiro Maenaka , Masao Takuma , Kiyotada Kawakami , Tooru Yamamoto , Tooru Asaeda
IPC分类号： H04N5/243 , H04N9/04 , H04N9/64 , H04N9/68 , H04N9/70
CPC分类号： H04N9/68 , H04N9/045
摘要： A digital video camera includes a pseudo-saturation calculating circuit by which a pseudo-saturation corresponding to an actual saturation is calculated on the basis of two color difference signals, and a suppression coefficient is calculated by a suppression coefficient calculating circuit on the basis of the pseudo-saturation. Each of the color difference signals are outputted by a selecting circuit in a dot sequential manner, and multiplied by the suppression coefficient in a multiplying circuit. Therefore, a signal in which a low-saturation chrominance signal is outputted from the multiplying circuit, whereby the low-saturation chrominance signal can be suppressed even though a sampling frequency is not increased.
摘要翻译：数字摄像机包括伪饱和度计算电路，通过该伪饱和度计算电路基于两个色差信号计算与实际饱和度相对应的伪饱和度，并且抑制系数由抑制系数计算电路基于伪饱和度。每个色差信号以点顺序方式由选择电路输出，并乘以乘法电路中的抑制系数。因此，从乘法电路输出低饱和度色度信号的信号，即使采样频率没有增加，也可以抑制低饱和度色度信号。

4. 发明授权

US5325182A Video signal processing circuit incorporated in a integrated circuit 失效
标题翻译：视频信号处理电路并入集成电路中
公开(公告)号：US5325182A
公开(公告)日：1994-06-28
申请号：US903075
申请日：1992-06-22
申请人： Haruhiko Murata , Yukio Mori , Akihiro Maenaka , Masao Takuma , Kiyotada Kawakami , Tooru Yamamoto , Tooru Asaeda
发明人： Haruhiko Murata , Yukio Mori , Akihiro Maenaka , Masao Takuma , Kiyotada Kawakami , Tooru Yamamoto , Tooru Asaeda
IPC分类号： H04N5/228 , H04N9/07 , H04N9/64 , H04N9/77 , H04N5/20 , H04N5/202 , H04N9/78
CPC分类号： H04N9/64
摘要： A video signal processing circuit is incorporated in an IC for camcorder in which a camera signal outputted from a CCD image sensor is processed in a digital manner such that luminance and color signals can be outputted. In the IC, a vertical interpolation circuit produces two kinds of vertically interpolated data on the basis of a digital camera signal of one channel within an image area being set by an electronic zoom function. A YC separation circuit receives the two kinds of vertically interpolated data, and an output of the YC separation circuit is applied a horizontal interpolation circuit or an RGB composition circuit. If the YC separation output is applied to the horizontal interpolation circuit, the same outputs two kinds of horizontally interpolated data upon which three primary color signals are composed by the RGB composition circuit. If the YC separation output is applied to the RGB composition circuit, the horizontal interpolation circuit produces two kinds of horizontally interpolated data on the basis of three primary color data outputted by the RGB composition circuit.
摘要翻译：视频信号处理电路被结合在用于摄像机的IC中，其中以数字方式处理从CCD图像传感器输出的相机信号，从而可以输出亮度和颜色信号。在IC中，垂直内插电路根据由电子变焦功能设定的图像区域内的一个通道的数字照相机信号，生成两种垂直内插数据。 YC分离电路接收两种垂直内插数据，YC分离电路的输出被施加水平内插电路或RGB合成电路。如果将YC分离输出应用于水平内插电路，则相同的输出由RGB合成电路构成三个原色信号的两种水平内插数据。如果YC分离输出被施加到RGB合成电路，则水平内插电路基于由RGB合成电路输出的三原色数据产生两种水平内插数据。

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