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1. 发明授权

US4961031A Focus voltage regulation circuit for cathode ray tubes 失效
标题翻译：阴极射线管聚焦电压调节电路
公开(公告)号：US4961031A
公开(公告)日：1990-10-02
申请号：US260049
申请日：1988-10-20
申请人： Mitsuhisa Nakagawa , Shogo Koseki
发明人： Mitsuhisa Nakagawa , Shogo Koseki
IPC分类号： H04N3/18 , H04N3/185 , H04N3/26
CPC分类号： H04N3/26
摘要： A voltage supply circuit for cathode ray tubes in which a horizontal drive pulse is supplied to a flyback transformer and a flyback pulse to be derived from the flyback transformer is supplied as a cathode voltage, a grid voltage and an anode voltage for a cathode ray tube, to provide a focus voltage regulation circuit for cathode ray tubes is disclosed wherein the flyback pulse to be derived from a part of the flyback transformer is rectified to obtain a direct current voltage which is in turn varied for application as a cathode voltage and/or a grid voltage or superimpose onto the anode voltage so that a potential difference between the cathode voltage, the grid voltage and the anode voltage is variably and relatively regulated.
摘要翻译：作为用于阴极射线管的阴极电压，电网电压和阳极电压，提供其中向回扫变压器供给水平驱动脉冲和从回扫变压器导出的回扫脉冲的阴极射线管的电压供给电路公开了提供用于阴极射线管的聚焦电压调节电路，其中将从反激式变压器的一部分导出的回扫脉冲被整流以获得直流电压，该直流电压随后作为阴极电压和/或电网电压或叠加到阳极电压上，使得阴极电压，电网电压和阳极电压之间的电位差是可变和相对调节的。

2. 发明授权

US5220252A Focus voltage correction circuit for cathode ray tubes 失效
标题翻译：阴极射线管聚焦电压校正电路
公开(公告)号：US5220252A
公开(公告)日：1993-06-15
申请号：US460081
申请日：1990-02-05
申请人： Shogo Koseki , Mitsuhisa Nakagawa , Nobuaki Nishijima
发明人： Shogo Koseki , Mitsuhisa Nakagawa , Nobuaki Nishijima
IPC分类号： G09G5/00 , G09G1/00 , G09G1/04 , H04N3/185 , H04N3/26
CPC分类号： H04N3/26
摘要： A focus voltage correction circuit for cathode ray tubes is disclosed in which a flyback pulse is generated by switching a supply voltage to be applied to a primary side of a flyback transformer, and the flyback pulse being is rectified and smoothed so as to develop a focus voltage in cathode ray tubes. A correction voltage capable of minimizing an error in the focus voltage to be caused by an error in the supply voltage is superimposed on the flyback pulse. In addition, the focus voltage correction circuit for cathode ray tubes may be provided with a device for regulating the correction voltage such that the focus voltage regulation can be performed.
摘要翻译： PCT No.PCT / JP89 / 00585 Sec。 371日期1991年1月18日公开了一种用于阴极射线管的聚焦电压校正电路，其中通过切换要施加到第一侧的电源电压来产生回扫脉冲，回扫变压器，并且反激脉冲被整流和平滑，以便在阴极射线管中产生聚焦电压。能够将由电源电压的误差引起的聚焦电压的误差最小化的校正电压叠加在回扫脉冲上。此外，阴极射线管的聚焦电压校正电路可以设置有用于调节校正电压的装置，使得可以执行聚焦电压调节。

3. 发明授权

US06459447B1 Video signal transmission device 失效
标题翻译：视频信号传输装置
公开(公告)号：US06459447B1
公开(公告)日：2002-10-01
申请号：US09409658
申请日：1999-09-30
申请人： Fujio Okada , Mitsuhisa Nakagawa , Keiichi Negishi
发明人： Fujio Okada , Mitsuhisa Nakagawa , Keiichi Negishi
IPC分类号： H04N718
CPC分类号： H04N5/23203 , H04N5/18 , H04N7/183 , H04N2005/2255 , Y10S128/908
摘要： With an electronic endoscope, a wide band video signal is output to connected instruments without giving electric shocks to a body even when the connected instruments are not insulated. The video signal V is converted to differential signals V1, V2 by a differential amp 31 and input to buffers 42, 43 via capacitors 32, 33. The clamp signal CP generated by the clamp signal output means 44 is input to the end terminals of the switches SW1, SW2 via the photocoupler 46. The differential signals V1, V2 undergo pulse clamping in the buffers 42, 43 and the DC components are restored. The video signal restoring portion 49 restores the video signal V on the basis of the differential signals V1, V2 having undergone DC restoration and outputs the video signals to the connected instruments.
摘要翻译：使用电子内窥镜，即使连接的仪器未被绝缘，宽带视频信号也输出到连接的仪器，而不会对电路产生电击。视频信号V由差分放大器31转换成差分信号V1，V2，并通过电容器32,33输入到缓冲器42,43。由钳位信号输出装置44生成的钳位信号CP被输入到开关SW1，SW2通过光电耦合器46.差分信号V1，V2在缓冲器42,43中进行脉冲钳位，直流分量被恢复。视频信号恢复部分49基于已经经过DC恢复的差分信号V1，V2恢复视频信号V，并将视频信号输出到连接的仪器。

4. 发明授权

US06618502B1 Color image processing method and apparatus 失效
标题翻译：彩色图像处理方法和装置
公开(公告)号：US06618502B1
公开(公告)日：2003-09-09
申请号：US09409661
申请日：1999-09-30
申请人： Fujio Okada , Mitsuhisa Nakagawa , Keiichi Negishi
发明人： Fujio Okada , Mitsuhisa Nakagawa , Keiichi Negishi
IPC分类号： G06K900
CPC分类号： H04N5/235 , H04N5/2355 , H04N9/646
摘要： In a first signal suppressing process, in cases where a signal level of a certain color signal among color signals obtained from an image sensing operation is higher than a predetermined signal level, the certain color signal is suppressed. An image sensing operation with a comparatively large exposure quantity and an image sensing operation with a comparatively small exposure quantity are performed alternately. It is detected that suppression of a certain color signal is performed in the first signal suppressing process when the image sensing operation with a comparatively large exposure quantity is performed. A calculation is made to find composition ratios of the color signals, which are obtained from the image sensing operation with a comparatively small exposure quantity. A second signal suppressing process is performed for suppressing at least one color signal other than the certain color signal such that the composition ratios become identical with the calculated composition ratios.
摘要翻译：在第一信号抑制处理中，在从摄像操作获得的彩色信号中的特定颜色信号的信号电平高于预定信号电平的情况下，抑制该特定颜色信号。交替地进行具有相对较大曝光量的图像感测操作和具有相对较小曝光量的图像感测操作。当执行具有相对较大曝光量的图像感测操作时，检测到在第一信号抑制处理中执行某种颜色信号的抑制。进行计算，以从相对较小的曝光量的图像感测操作中求出彩色信号的组成比。执行第二信号抑制处理，用于抑制除特定颜色信号之外的至少一种颜色信号，使得组成比与计算出的组成比相同。

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