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公开(公告)号：US20120182024A1
公开(公告)日：2012-07-19
申请号：US13427088
申请日：2012-03-22
IPC分类号： G01R31/14
CPC分类号： G01R31/025 , H02H3/16 , H02H7/20
摘要： A ground fault detection circuit includes: a first switch circuit that connects/disconnects a first path between a positive bus bar and a ground potential section, the positive bus bar being connected to positive electrodes of secondary battery units through a field-effect transistor including a parasitic diode; a second switch circuit that connects/disconnects a second path between a negative bus bar and a ground potential section, the negative bus bar being connected to negative electrodes of the secondary battery units; and a ground fault detection unit that detects a ground fault of the positive bus bar or the negative bus bar based on an electric current flowing through the first path or the second path.
摘要翻译： 接地故障检测电路包括：第一开关电路，其连接/断开正母线和地电位部分之间的第一路径，所述正母线通过场效应晶体管连接到二次电池单元的正电极，所述场效应晶体管包括 寄生二极管; 第二开关电路，连接/断开负母线和地电位部分之间的第二路径，负母线连接到二次电池单元的负电极; 以及接地故障检测单元，其基于流过所述第一路径或所述第二路径的电流来检测所述正母线或所述负母线的接地故障。
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公开(公告)号：US20060028578A1
公开(公告)日：2006-02-09
申请号：US11187022
申请日：2005-07-22
申请人： Takashi Tanimoto , Tomomichi Nakai
发明人： Takashi Tanimoto , Tomomichi Nakai
IPC分类号： H04N5/235
CPC分类号： H04N5/243 , H04N5/2352 , H04N5/2353
摘要： In exposure control of an imaging apparatus, if a vertical scanning period is enlarged to increase an exposure time when the exposure time reaches an upper limit value, there occurs a problem in that a frame rate is reduced. Accordingly, when a subject is dark, an auto exposure control circuit sets the vertical scanning period V to a standard value Vst, increases the exposure time E to the upper limit value Emax (P60) and then increases a gain a of an AGC circuit (P62). If the image is still dark even when the gain α reaches the upper limit value amax, the auto exposure control circuit switches the vertical scanning period V to an enlarged value Vex and thus more increases the exposure time E (P64).
摘要翻译： 在成像装置的曝光控制中，如果在曝光时间达到上限值的情况下放大垂直扫描期间以增加曝光时间，则出现帧率降低的问题。 因此，当被摄体暗时，自动曝光控制电路将垂直扫描周期V设定为标准值Vst，将曝光时间E增加到上限值Emax（P60），然后增大AGC电路的增益a （第62页）。 如果即使增益α达到上限值amax，图像仍然暗，则自动曝光控制电路将垂直扫描周期V切换到放大值Vex，从而更多地增加曝光时间E（P 64）。
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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
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。
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公开(公告)号：US07456899B2
公开(公告)日：2008-11-25
申请号：US11187022
申请日：2005-07-22
申请人： Takashi Tanimoto , Tomomichi Nakai
发明人： Takashi Tanimoto , Tomomichi Nakai
CPC分类号： H04N5/243 , H04N5/2352 , H04N5/2353
摘要： In exposure control of an imaging apparatus, if a vertical scanning period is enlarged to increase an exposure time when the exposure time reaches an upper limit value, there occurs a problem in that a frame rate is reduced. Accordingly, when a subject is dark, an auto exposure control circuit sets the vertical scanning period V to a standard value Vst, increases the exposure time E to the upper limit value Emax (P60) and then increases a gain α of an AGC circuit (P62). If the image is still dark even when the gain α reaches the upper limit value α max, the auto exposure control circuit switches the vertical scanning period V to an enlarged value Vex and thus more increases the exposure time E (P64).
摘要翻译： 在成像装置的曝光控制中，如果在曝光时间达到上限值的情况下放大垂直扫描期间以增加曝光时间，则出现帧率降低的问题。 因此，当被摄体暗时，自动曝光控制电路将垂直扫描周期V设定为标准值Vst，将曝光时间E增加到上限值Emax（P60），然后增加AGC电路的增益α （第62页）。 如果即使增益α达到上限值αmax，图像仍然暗，则自动曝光控制电路将垂直扫描周期V切换到放大值Vex，从而更多地增加曝光时间E（P 64）。
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公开(公告)号：US07203357B2
公开(公告)日：2007-04-10
申请号：US10656923
申请日：2003-09-04
申请人： Masato Teratani , Tomomichi Nakai
发明人： Masato Teratani , Tomomichi Nakai
IPC分类号： G06K9/00
CPC分类号： G06T11/00
摘要： Image data of a target pixel and peripheral pixels are stored in a memory. Using a most significant bit extractor circuit, 4 most significant bits of data are extracted from each image data. A histogram circuit generates a histogram of the extracted 4-bit data. Referring to the histogram, a data processor circuit (17) replaces the image data of the target pixel with a maximum value of the numbers of pixels having the same level and outputs the processed data. Then, a digit-complementing circuit converts the data output from the data processor circuit to 8-bit data and outputs the converted data. In this manner, a regular image is converted into an image similar to a draft-design image.
摘要翻译： 目标像素和周边像素的图像数据被存储在存储器中。 使用最有效的位提取器电路，从每个图像数据中提取4个最高有效位的数据。 直方图电路产生提取的4位数据的直方图。 参考直方图，数据处理器电路（17）以具有相同电平的像素数的最大值替换目标像素的图像数据并输出处理的数据。 然后，数字互补电路将从数据处理器电路输出的数据转换为8位数据并输出转换后的数据。 以这种方式，将常规图像转换成类似于草图设计图像的图像。
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公开(公告)号：US20050185223A1
公开(公告)日：2005-08-25
申请号：US11038383
申请日：2005-01-21
CPC分类号： H04N1/4092
摘要： An image signal is input to two LPFs having different transmission characteristics. A selector chooses one of outputs of the respective LPFs and delivers the chosen output to a gamma correction circuit. The switching of the selector is controlled by a filter control circuit. In the filter control circuit, a comparator compares an exposure time E of a current frame with a threshold value R. The selector is controlled so as to select an output of one of the LPFs that has a lower cutoff frequency and a greater noise component elimination effect than the other LPF does if the exposure time E is longer than or equal to the threshold value R.
摘要翻译： 图像信号被输入到具有不同传输特性的两个LPF。 选择器选择相应LPF的输出之一并将选择的输出传送到伽马校正电路。 选择器的切换由滤波器控制电路控制。 在滤波器控制电路中，比较器将当前帧的曝光时间E与阈值R进行比较。控制选择器以选择具有较低截止频率和较大噪声成分消除的一个LPF的输出 如果曝光时间E大于或等于阈值R，则效果比另一LPF的效果
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公开(公告)号：US06822689B1
公开(公告)日：2004-11-23
申请号：US09512754
申请日：2000-02-25
申请人： Toshio Nakakuki , Tomomichi Nakai
发明人： Toshio Nakakuki , Tomomichi Nakai
IPC分类号： H04N5235
CPC分类号： H04N5/2353 , H04N5/235
摘要： Exposure control for a solid-state imaging apparatus can be completed in a short time. First exposure information D1 and second exposure information D2 are prepared. The first exposure information D1 is for adjustment of an exposure time L for a CCD (1) through extension or reduction in the unit of one horizontal scanning period; the second exposure information D2 is for direct designation of an exposure time L. When the power is switched on, the second exposure information D2 is selected for supply to a timing control circuit (3). After a lapse of a predetermined time, the first exposure information D1 is then selected.
摘要翻译： 固态成像装置的曝光控制可以在短时间内完成。 准备第一曝光信息D1和第二曝光信息D2。 第一曝光信息D1用于通过以一个水平扫描周期为单位通过扩展或缩小来调整CCD（1）的曝光时间L; 第二曝光信息D2用于直接指定曝光时间L.当电源接通时，选择第二曝光信息D2供给定时控制电路（3）。 经过预定时间后，选择第一曝光信息D1。
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公开(公告)号：US08797042B2
公开(公告)日：2014-08-05
申请号：US13427088
申请日：2012-03-22
IPC分类号： G01N27/416
CPC分类号： G01R31/025 , H02H3/16 , H02H7/20
摘要： A ground fault detection circuit includes: a first switch circuit that connects/disconnects a first path between a positive bus bar and a ground potential section, the positive bus bar being connected to positive electrodes of secondary battery units through a field-effect transistor including a parasitic diode; a second switch circuit that connects/disconnects a second path between a negative bus bar and a ground potential section, the negative bus bar being connected to negative electrodes of the secondary battery units; and a ground fault detection unit that detects a ground fault of the positive bus bar or the negative bus bar based on an electric current flowing through the first path or the second path.
摘要翻译： 接地故障检测电路包括：第一开关电路，其连接/断开正母线和地电位部分之间的第一路径，所述正母线通过场效应晶体管连接到二次电池单元的正电极，所述场效应晶体管包括 寄生二极管; 第二开关电路，连接/断开负母线和地电位部分之间的第二路径，负母线连接到二次电池单元的负电极; 以及接地故障检测单元，其基于流过所述第一路径或所述第二路径的电流来检测所述正母线或所述负母线的接地故障。
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9.发明授权Image signal processing apparatus for setting a noise component attenuation characteristic 有权用于设置噪声分量衰减特性的图像信号处理装置公开(公告)号：US07843498B2
公开(公告)日：2010-11-30
申请号：US11038383
申请日：2005-01-21
CPC分类号： H04N1/4092
摘要： An image signal is input to two LPFs having different transmission characteristics. A selector chooses one of outputs of the respective LPFs and delivers the chosen output to a gamma correction circuit. The switching of the selector is controlled by a filter control circuit. In the filter control circuit, a comparator compares an exposure time E of a current frame with a threshold value R. The selector is controlled so as to select an output of one of the LPFs that has a lower cutoff frequency and a greater noise component elimination effect than the other LPF does if the exposure time E is longer than or equal to the threshold value R.
摘要翻译： 图像信号被输入到具有不同传输特性的两个LPF。 选择器选择相应LPF的输出之一并将选择的输出传送到伽马校正电路。 选择器的切换由滤波器控制电路控制。 在滤波器控制电路中，比较器将当前帧的曝光时间E与阈值R进行比较。控制选择器以选择具有较低截止频率和较大噪声成分消除的一个LPF的输出 如果曝光时间E大于或等于阈值R，则效果比另一LPF的效果
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公开(公告)号：US06768511B1
公开(公告)日：2004-07-27
申请号：US09495419
申请日：2000-01-31
申请人： Tomomichi Nakai , Toshio Nakakuki
发明人： Tomomichi Nakai , Toshio Nakakuki
IPC分类号： H04N5235
CPC分类号： H04N5/2352
摘要： A solid-state imaging apparatus having a CCD image capturing circuit includes an exposure time control circuit which analyzes the image signal generated by the image capturing circuit and generates a control signal to adjust an image exposure time. A balance control circuit also receives the control signal and updates gain control information used by an image processing circuit that generates color difference data (U/V data) from the image signal.
摘要翻译： 具有CCD图像拍摄电路的固态成像装置包括曝光时间控制电路，其分析由图像捕获电路产生的图像信号并产生控制信号以调整图像曝光时间。 平衡控制电路还接收控制信号并更新由图像信号产生色差数据（U / V数据）的图像处理电路所使用的增益控制信息。
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