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1. 发明授权

US06002433A Defective pixel detecting circuit of a solid state image pick-up device capable of detecting defective pixels with low power consumption and high precision, and image pick-up device having such detecting circuit 有权
标题翻译：能够以低功耗和高精度检测缺陷像素的固体摄像装置的有缺陷的像素检测电路，以及具有这种检测电路的图像拾取装置
公开(公告)号：US06002433A
公开(公告)日：1999-12-14
申请号：US154374
申请日：1998-09-16
申请人： Toshiyuki Watanabe , Nobuhide Dotsubo , Hiroshi Akizuki
发明人： Toshiyuki Watanabe , Nobuhide Dotsubo , Hiroshi Akizuki
IPC分类号： H04N5/217 , H04N5/367 , H04N5/372 , H04N9/64
CPC分类号： H04N5/367
摘要： Image pick-up device reads image pick-up signals of all the pixels of CCD only when a light intercepting plate is moved from the light non-intercepting position to the light intercepting position for the first time after a battery replacement. By comparing the image pick-up signal from each pixel with a first threshold value, a possibly defective pixels are extracted. Thereafter, by reading the image pick-up signals for a prescribed number of times from CCD, accumulated value of the image pick-up signals of each of the possibly defective pixels is calculated. Based on the result of comparison between the accumulated value corresponding to each of the possibly defective pixels and second threshold value, an actually defective pixel is specified from the possibly defective pixels.
摘要翻译：只有在电池更换之后第一次将遮光板从不透光位置移动到遮光位置时，图像拾取装置才能读取CCD的所有像素的图像拾取信号。通过将来自每个像素的摄像信号与第一阈值进行比较，提取可能的缺陷像素。此后，通过从CCD读取规定次数的图像拾取信号，计算每个可能缺陷像素的图像拾取信号的累积值。基于与每个可能的故障像素相对应的累积值与第二阈值之间的比较结果，从可能有缺陷的像素指定实际缺陷像素。

2. 发明授权

US06980252B1 Electronic camera and battery voltage controlling method employed therein for successively, rather than simultaneously, operating camera portions during conditions of low battery voltage 失效
标题翻译：电子照相机和电池电压控制方法，用于在低电池电压的条件下连续而不是同时操作相机部分
公开(公告)号：US06980252B1
公开(公告)日：2005-12-27
申请号：US08919670
申请日：1997-08-28
申请人： Hiroshi Akizuki , Nobuhide Dotsubo
发明人： Hiroshi Akizuki , Nobuhide Dotsubo
IPC分类号： G01R31/36 , H02J1/00 , H02J7/00 , H04N5/225 , H04N5/232 , H04N5/235 , H04N101/00 , H04N5/222
CPC分类号： H04N5/232 , H04N5/2354
摘要： An electronic camera free from failures of an internal circuit, such as a signal processing portion, caused by a drop in battery voltage when there remains a small amount of electric charge in the battery, includes a signal processing portion for signal-processing an imaged video signal obtained from an imaging element to form image data, a monitor for displaying the image data, an electronic flash device, a battery for supplying current to the signal processing portion, the monitor and the electronic flash device, a battery voltage detector circuit, and a system controller. She electronic flash device includes a capacitor charged when no light is emitted, and a discharge tube receiving an output from the capacitor and emitting light. The system controller receives an output from the battery voltage detector circuit, determines whether the amount of electric charge remaining in the battery is below a predetermined value, and controls displaying on the monitor and charging of the capacitor such that these operations are simultaneously performed when the amount of electric charge remaining in the battery is below the predetermined value.
摘要翻译：当电池中存在少量的电荷时，由电池电压下降引起的诸如信号处理部分的内部电路故障的电子照相机包括信号处理部分，用于对成像的视频进行信号处理从成像元件获得的信号以形成图像数据，用于显示图像数据的监视器，电子闪光装置，用于向信号处理部分提供电流的电池，监视器和电子闪光装置，电池电压检测器电路和系统控制器。她的电子闪光装置包括当没有发光时充电的电容器和接收来自电容器的输出并发光的放电管。系统控制器接收来自电池电压检测电路的输出，确定电池中剩余的电荷量是否低于预定值，并且控制在监视器上的显示和电容器的充电，以便当这些操作同时执行时电池中剩余的电荷量低于预定值。

3. 发明授权

US07050105B2 Electronic camera and battery voltage controlling method employed therein for successively, rather than simultaneously, operating camera portions during conditions of low battery voltage 失效
公开(公告)号：US07050105B2
公开(公告)日：2006-05-23
申请号：US09888269
申请日：2001-06-22
申请人： Hiroshi Akizuki , Nobuhide Dotsubo
发明人： Hiroshi Akizuki , Nobuhide Dotsubo
IPC分类号： H04N5/222 , H04N5/225
CPC分类号： H04N5/232 , H04N5/2354
摘要： An electronic camera free from failures of an internal circuit, such as a signal processing portion, caused by a drop in battery voltage when there remains a small amount of electric charge in the battery, includes a signal processing portion for signal-processing an imaged video signal obtained from an imaging element to form image data, a monitor for displaying the image data, an electronic flash device, a battery for supplying current to the signal processing portion, the monitor and the electronic flash device, a battery voltage detector circuit, and a system controller. The electronic flash device includes a capacitor charged when no light is emitted, and a discharged tube receiving an output from the capacitor and emitting light. The system controller receives an output from the battery voltage detector circuit, determines whether the amount of electric charge remaining in the battery is below a predetermined value, and controls displaying on the monitor and charging of the capacitor not to be simultaneously performed when the amount of electric charge remaining in the battery is below the predetermined value.

4. 发明授权

US6064183A Device detecting the amount of charge remaining in a battery 有权
标题翻译：设备检测电池中剩余的电量
公开(公告)号：US6064183A
公开(公告)日：2000-05-16
申请号：US230619
申请日：1999-01-28
申请人： Hiroshi Akizuki , Nobuhide Dotsubo
发明人： Hiroshi Akizuki , Nobuhide Dotsubo
IPC分类号： H02J7/00 , G01R31/36 , G03B7/26 , H04N5/232 , H04N101/00 , H02J7/04 , H02J7/16
CPC分类号： H04N5/23241 , G01R31/3648 , G03B7/26 , H04N5/232 , G01R19/16542
摘要： When an electronic still camera in which a value of a voltage from a battery 2 is compared with reference values in a heavily loaded condition, i.e. with an LCD monitor 21 operated, to detect the current amount of charge remaining in the battery and a battery voltage obtained that is lower than a reference value R3 forces the body of the camera to be powered off, is again powered on without changing the battery, the battery is immediately placed in a lightly loaded condition, since LCD monitor 21 is in a non-operating state. Thus, battery voltage increases and thus exceeds the reference value and this disadvantageously results in a result different from that of detection of the amount of charge remaining in the battery that is obtained before the camera is powered off. In order to overcome the disadvantage, the present invention allows the reference value R3 to be increased by a predetermined value a corresponding to the increase in battery voltage that results from the load reduction to set a new reference value when the camera is first forced to be powered off and is then powered on without changing the battery.
摘要翻译： PCT No.PCT / JP97 / 02662 Sec。 371日期1999年1月28日 102（e）1999年1月28日PCT PCT 1997年7月30日PCT公布。公开号WO98 / 06159 日期1998年2月12日当将来自电池2的电压值与重度负载状态（即，LCD监视器21的操作）的参考值进行比较的电子静态照相机，以检测当前剩余的电量电池和获得的低于参考值R3的电池电压迫使照相机的主体断电，在不改变电池的情况下再次通电，由于LCD监视器21是电池，所以电池立即处于轻负载状态处于非运行状态。因此，电池电压增加并因此超过参考值，并且这不利地导致与在相机断电之前获得的在电池中剩余的电荷量的检测结果不同的结果。为了克服这个缺点，本发明允许参考值R3增加一个预定值a，对应于由负载降低引起的电池电压的增加，当照相机首先被迫为关闭电源，然后启动电源，无需更换电池。

5. 发明授权

US5854655A Defective pixel detecting circuit of a solid state image pick-up device capable of detecting defective pixels with low power consumption and high precision, and image pick-up device having such detecting circuit 失效
标题翻译：能够以低功耗和高精度检测缺陷像素的固体摄像装置的有缺陷的像素检测电路，以及具有这种检测电路的图像拾取装置
公开(公告)号：US5854655A
公开(公告)日：1998-12-29
申请号：US693684
申请日：1996-08-12
申请人： Toshiyuki Watanabe , Nobuhide Dotsubo , Hiroshi Akizuki
发明人： Toshiyuki Watanabe , Nobuhide Dotsubo , Hiroshi Akizuki
IPC分类号： H04N5/367 , H04N5/335
CPC分类号： H04N5/367
摘要： Image pick-up device reads image pick-up signals of all the pixels of CCD2 once when an optical system is in light intercepted state. By comparing the image pick-up signal from each pixel with a first threshold value THL1, a possibly defective pixels are extracted. Thereafter, by reading the image pick-up signals for a prescribed number of times from the CCD2, accumulated value of the image pick-up signals of each of the possibly defective pixels is calculated. Based on the result of comparison between the accumulated value corresponding to each of the possibly defective pixels and second threshold value THL2, an actually defective pixel is specified from the possibly defective pixels.
摘要翻译：当光学系统处于遮光状态时，图像拾取装置读取CCD2的所有像素的图像拾取信号一次。通过将来自每个像素的摄像信号与第一阈值THL1进行比较，提取可能的缺陷像素。此后，通过从CCD2读取规定次数的图像拾取信号，计算每个可能故障像素的图像拾取信号的累积值。基于与每个可能的故障像素的累积值和第二阈值THL2进行比较的结果，从可能有缺陷的像素指定实际缺陷像素。

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