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    Imaging apparatus offering dynamic range that is expandable by weighting two image signals produced during different exposure times with two coefficients whose sum is 1 and adding them up
    1.
    发明授权
    Imaging apparatus offering dynamic range that is expandable by weighting two image signals produced during different exposure times with two coefficients whose sum is 1 and adding them up 失效
    成像设备提供动态范围，通过对两个系数的加和在不同曝光时间内产生的两个图像信号进行扩展，其总和为1并将其相加

    公开(公告)号：US06677992B1

    公开(公告)日：2004-01-13

    申请号：US09176966

    申请日：1998-10-22

    申请人： Kanichi Matsumoto ,  Katsuyuki Saito ,  Kotaro Ogasawara ,  Kuniaki Kami ,  Shinji Yamashita ,  Noboru Kusamura ,  Akihiko Mochida ,  Wataru Ohno ,  Makoto Tsunakawa ,  Hideki Tashiro ,  Manabu Yajima

    发明人： Kanichi Matsumoto ,  Katsuyuki Saito ,  Kotaro Ogasawara ,  Kuniaki Kami ,  Shinji Yamashita ,  Noboru Kusamura ,  Akihiko Mochida ,  Wataru Ohno ,  Makoto Tsunakawa ,  Hideki Tashiro ,  Manabu Yajima

    IPC分类号： H04N5235

    CPC分类号： H04N5/343 ,  H04N5/2258 ,  H04N5/2354 ,  H04N5/35581 ,  H04N5/372 ,  H04N2005/2255

    摘要： An object is imaged continuously during a first exposure time and a second exposure time shorter than the first exposure time. Weights, one of which decreases monotonously and the other of which increases monotonously, are applied to first and second resultant image signals under the condition that the sum of the weights is 1. The first and second image signals that have been weighted are added up, thus producing a synthetic picture signal. When a luminance level is low, the ratio of the first image signal, which has been produced during the longer exposure time, to the second image signal is increased. This results in an image demonstrating a high signal-to-noise ratio. When the luminance level is high, the ratio of the second image signal, which has been produced during the shorter exposure time, to the first image signal is increased. This results in a synthetic image that proves a wide dynamic range, depicts a smoothly varying brightness level, and exhibits a characteristic of being seen as almost natural. Moreover, the first and second image signals are produced to resemble those produced during mutually different exposure times by controlling an amount of light incident on an imaging device or by varying an amount of illumination light.

    摘要翻译： 物体在第一曝光时间和比第一曝光时间短的第二曝光时间连续成像。 在权重之和为1的条件下，其中一个单调减小，另一个单调增加，被加到第一和第二合成图像信号上。加权的第一和第二图像信号相加， 从而产生合成图像信号。 当亮度水平低时，在较长曝光时间内产生的第一图像信号与第二图像信号的比率增加。 这导致显示出高的信噪比的图像。 当亮度水平高时，在较短的曝光时间内产生的第二图像信号与第一图像信号的比率增加。 这导致合成图像证明了宽的动态范围，描绘了平滑变化的亮度水平，并且表现出被视为几乎自然的特征。 此外，通过控制入射到成像装置上的光量或通过改变照明光量，第一和第二图像信号被产生为类似于在相互不同的曝光时间期间产生的图像信号。

    Light source device for an endoscope using a DMD
    2.
    发明授权
    Light source device for an endoscope using a DMD 有权
    使用DMD的内窥镜用光源装置

    公开(公告)号：US06878109B2

    公开(公告)日：2005-04-12

    申请号：US10085704

    申请日：2002-02-28

    申请人： Masahide Yamaki ,  Seiichi Hosoda ,  Shuhei Iizuka ,  Katsuichi Imaizumi ,  Masaki Terakubo ,  Takeaki Nakamura ,  Hiroshi Ibe ,  Manabu Yajima

    发明人： Masahide Yamaki ,  Seiichi Hosoda ,  Shuhei Iizuka ,  Katsuichi Imaizumi ,  Masaki Terakubo ,  Takeaki Nakamura ,  Hiroshi Ibe ,  Manabu Yajima

    IPC分类号： A61B1/04 ,  A61B1/045 ,  A61B1/05 ,  A61B1/06

    CPC分类号： A61B1/045 ,  A61B1/00059 ,  A61B1/05 ,  A61B1/0638 ,  A61B1/0646 ,  A61B1/0669

    摘要： An endoscope system comprising an endoscope which incorporates an imaging element together with an element for determining the type of the imaging element; a light source apparatus, which includes a DMD in a light path from a light source lamp, for determining incidence or non-incidence of the illuminating light from the light source lamp on a mirror; a CPU which determines the type of imaging element based on the information provided by the type determining element and detects a time required by the imaging element for charge reading based on the determination result; and a DMD control circuit which controls the DMD at a charge reading timing of the imaging element corresponding to the charge reading time detected by the CPU, the endoscope system making it possible to extend the exposure time to a maximum regardless of the type of the endoscope, by controlling the light shielding time of illuminating light in accordance with the type of the imaging element.

    摘要翻译： 一种内窥镜系统，其包括将成像元件与用于确定所述摄像元件的类型的元件一起并入的内窥镜; 光源装置，其包括来自光源灯的光路中的DMD，用于确定来自所述光源灯的照明光在镜子上的入射或不入射; CPU，其基于由所述类型确定元件提供的信息来确定所述成像元件的类型，并且基于所述确定结果检测所述成像元件对于电荷读取所需的时间; 以及DMD控制电路，其在与由CPU检测到的电荷读取时间相对应的摄像元件的电荷读取定时处控制DMD，该内窥镜系统使得可以将曝光时间延长到最大，而与内窥镜的类型无关 通过根据摄像元件的种类控制照明光的遮光时间。

    Endoscope device
    3.
    发明授权
    Endoscope device 有权
    内窥镜装置

    公开(公告)号：US06733441B2

    公开(公告)日：2004-05-11

    申请号：US09852412

    申请日：2001-05-10

    申请人： Koichi Niida ,  Manabu Yajima ,  Tomoki Iwasaki

    发明人： Koichi Niida ,  Manabu Yajima ,  Tomoki Iwasaki

    IPC分类号： A61B106

    CPC分类号： A61B1/00055 ,  A61B1/00057 ,  A61B1/0669

    摘要： An endoscope system has a lamp 22 that emits illumination light with which an object is illuminated, and a power supply 24 that supplies power with which the lamp is lit. Furthermore, the endoscope system includes a condition detecting unit and a notifying unit. The condition detecting unit is provided to or near the lamp 22 and detects a predetermined condition relevant to the lamp. The notifying unit notifies an operator of the state of the lamp according to a result of detection performed by the condition detecting unit. The condition detecting unit is a temperature detector 27 or a power detector 51. The temperature detector 27 detects whether the temperature at or near the lamp is equal to or larger than a predetermined value. The power detector 51 detects whether current or voltage supplied or applied from the power supply to the lamp is equal to or smaller than a predetermined value.

    摘要翻译： 内窥镜系统具有发射被照射物体的照明光的灯22和供给灯被照亮的电力的电源24。 此外，内窥镜系统包括条件检测单元和通知单元。 条件检测单元设置在灯22上或附近，并且检测与灯相关的预定条件。 通知单元根据由条件检测单元执行的检测结果通知操作者灯的状态。 条件检测单元是温度检测器27或功率检测器51.温度检测器27检测灯处或附近的温度是否等于或大于预定值。 功率检测器51检测从电源向灯提供或施加的电流或电压是否等于或小于预定值。

    Endoscope system having a switch forcibly set to display video signals not passed through outer peripheral apparatus
    6.
    发明授权
    Endoscope system having a switch forcibly set to display video signals not passed through outer peripheral apparatus 失效
    内窥镜系统具有强制设置为显示未通过外围设备的视频信号的开关

    公开(公告)号：US5646680A

    公开(公告)日：1997-07-08

    申请号：US527082

    申请日：1995-09-12

    申请人： Manabu Yajima

    发明人： Manabu Yajima

    IPC分类号： G02B23/24 ,  A61B1/04 ,  H04N5/225 ,  H04N5/775 ,  H04N5/781 ,  H04N5/782 ,  H04N5/85 ,  H04N7/18

    CPC分类号： H04N7/183 ,  H04N5/775 ,  H04N2005/2255 ,  H04N5/781 ,  H04N5/782 ,  H04N5/85

    摘要： A first video signal is produced in a video signal processing circuit within a video processor by an imaging device provided in an endoscope, is put into a switching circuit, has the tone and the like corrected by a picture image correcting circuit within an outer peripheral apparatus provided outside the video processor and is converted to a second video signal electrically different from the first video signal. The second video signal is recorded and is displayed in a color monitor through a switching circuit. In case the outer peripheral apparatus is abnormal and a normal picture image is not displayed in the color monitor, by the operation of a forcibly set switch, the first video signal produced in the video signal processing circuit within the video processor will be quickly displayed in the color monitor without being passed through the outer peripheral apparatus.

    摘要翻译： 第一视频信号由内窥镜中的成像装置在视频处理器内的视频信号处理电路中产生，放入切换电路中，由外部设备内的图像校正电路校正了色调等 设置在视频处理器的外部并被转换成与第一视频信号电不同的第二视频信号。 第二视频信号被记录并通过开关电路显示在彩色监视器中。 在外围设备异常并且在彩色监视器中没有显示正常图像图像的情况下，通过强制设置开关的操作，在视频处理器内的视频信号处理电路中产生的第一视频信号将快速显示在 该彩色监视器不通过外围设备。

    Insulated gate semiconductor device
    8.
    发明授权
    Insulated gate semiconductor device 有权
    绝缘栅半导体器件

    公开(公告)号：US08106460B2

    公开(公告)日：2012-01-31

    申请号：US12425893

    申请日：2009-04-17

    申请人： Manabu Yajima

    发明人： Manabu Yajima

    IPC分类号： H01L27/06

    CPC分类号： H01L29/0692 ,  H01L27/0255 ,  H01L29/0696 ,  H01L29/4238 ,  H01L29/7808 ,  H01L2924/0002 ,  H01L2924/00

    摘要： A protection diode group includes multiple protection diodes connected to each other in parallel. A total junction area average of the protection diode group is set to a value large enough to guarantee a desired electrostatic discharge tolerance. By setting the total junction area average to be equal to a junction area average of a conventional structure, the occupation area of the protection diode group on the chip is reduced while the ESD tolerance is made equal to a conventional ESD tolerance.

    摘要翻译： 保护二极管组包括并联连接的多个保护二极管。 保护二极管组的总结面积平均值设定为足够大的值以保证所需的静电放电容差。 通过将总结区平均值设置为等于传统结构的结区面积平均值，芯片上的保护二极管组的占用面积减小，同时使ESD容差等于常规ESD容差。