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    • 45. 发明授权
    • Electronic endoscope
    • 电子内窥镜
    • US4894715A
    • 1990-01-16
    • US244215
    • 1988-09-14
    • Akinobu UchikuboMasahiko SasakiKatsuyuki SaitoMasahide KannoJun Hasegawa
    • Akinobu UchikuboMasahiko SasakiKatsuyuki SaitoMasahide KannoJun Hasegawa
    • G02B23/24A61B1/04G06T3/40H04N5/225H04N5/262
    • G06T3/4007H04N5/2628H04N2005/2255
    • An electronic endoscope apparatus whereby a picture image can be displayed at any desired displaying view angle irrespective of the pixel formation of a solid state imaging device, the picture image magnification rate and contraction rate of an observed object and the television broadcasting system comprises an imaging apparatus having a solid state imaging device outputting an object image as an electric signal and a video signal processing circuit driving the solid state imaging device and processing the read out electric signal to produce a video signal. The object image imaged by the solid state imaging device will be magnified or contracted by a picture image displaying magnification rate varying apparatus which can either magnify or contract the object image in at least one of the vertical direction and horizontal direction. The object image either magnified or contracted by the picture image displaying magnification rate varying apparatus will be displayed by a monitor. The view angle of the picture image displayed in the monitor will be adjusted by a picture image displaying magnification rate controlling apparatus which can control the magnification rate independently in at least one of the vertical direction and horizontal direction. The picture image displaying magnification rate controlling apparatus has a sensing and instructing apparatus sensing or instructing the factor varying the displaying view angle and outputting a signal relating to the picture image displaying magnification rate to the picture image displaying magnification rate controlling apparatus.
    • 一种电子内窥镜装置,其中可以以任何期望的显示视角显示图像图像,而与固态成像装置的像素形成无关,观察对象和电视广播系统的图像放大率和收缩率包括成像装置 具有输出作为电信号的物体图像的固态成像装置和驱动固态成像装置的视频信号处理电路,并处理读出的电信号以产生视频信号。 由固态成像装置成像的被摄体图像将被能够在垂直方向和水平方向中的至少一个中放大或收缩对象图像的图像显示倍率变化装置放大或缩小。 由图像显示放大率变化装置放大或缩小的对象图像将由监视器显示。 监视器中显示的图像的视角将通过可以在垂直方向和水平方向中的至少一个中独立地控制放大率的图像显示倍率控制装置来调节。 图像显示倍率控制装置具有感测和指示装置,感测或指示改变显示视角的因子,并将与图像显示放大率相关的信号输出到图像显示倍率控制装置。
    • 48. 发明授权
    • Image pickup system
    • 摄像系统
    • US07821529B2
    • 2010-10-26
    • US10670114
    • 2003-09-24
    • Akihiko MochidaKatsuyuki SaitoMakoto TsunakawaNoboru KusamuraKotaro OgasawaraHideki Tashiro
    • Akihiko MochidaKatsuyuki SaitoMakoto TsunakawaNoboru KusamuraKotaro OgasawaraHideki Tashiro
    • A62B1/04
    • H04N5/335A61B1/05H04N2005/2255
    • To provide an image pickup system having CCDs 25 driven at different frequencies respectively which can drive each CCD 25 with a predetermined frequency if a detachable camera head (or electronic endoscope) 28 is used and also can process a signal processing clock of a video processing circuit 29 with one type of clock. A drive signal of the predetermined frequency supplied to the CCD is produced via a generating circuit CXO 155 in the video processing circuit 29, a frequency dividing circuit 132 and a timing generator (T.G.) 131. A CCD signal outputted from the CCD 25 is inputted to a line memory 139 in a floating circuit 135. As a writing clock (WCK) of the line memory 139, the one which is divided in the frequency dividing circuit 132 to a frequency in accordance with the CCD 25 to be used is used, and as a reading clock (RCK), the one of one type of frequency is used without regard to the CCD 25 to be used. Hence, it is possible to perform the signal processing of a secondary circuit 136 of the line memory 139 and following ones always with a common generating clock.
    • 为了提供具有以不同频率驱动的CCD25的图像拾取系统,其可以使用可拆卸的相机头(或电子内窥镜)28来以预定频率驱动每个CCD 25,并且还可以处理视频处理电路的信号处理时钟 29与一种类型的时钟。 通过视频处理电路29,分频电路132和定时发生器(TG)131中的发生电路CX0 155产生提供给CCD的预定频率的驱动信号。输入从CCD 25输出的CCD信号 作为浮置电路135中的行存储器139.作为行存储器139的写入时钟(WCK),使用在分频电路132中划分为与要使用的CCD 25相对应的频率的存储器, 并且作为读取时钟(RCK),使用一种类型的频率中的一种,而不考虑要使用的CCD 25。 因此,可以对行存储器139的次级电路136进行信号处理,并且可以执行以下公式的公共生成时钟。