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    • 2. 发明授权
    • Image pickup apparatus
    • 摄像设备
    • US06657674B1
    • 2003-12-02
    • US09285042
    • 1999-04-01
    • Ryoji AsadaShoji Nishikawa
    • Ryoji AsadaShoji Nishikawa
    • H04N701
    • H04N5/335H04N7/012
    • An image pickup apparatus operated in mode-1 in which signal-charge that is charged in a CCD imaging device is read out as the output signal of the CCD imaging device once in each field of progressive-scanning, or in mode-2 in which the signal-charge is read out once (viz. during one field) in every two fields of progressive-scanning. And the output signal of the CCD imaging device is written into a memory according to a progressive-scanning synchronizing signal during the intervals when the signal-charge is read out. Then the signal written in the memory is read out, in the mode-1, according to the progressive-scanning synchronizing signal, and, in the mode-2, in such a manner that odd lines are read out in each odd field and even lines are read out in each even field according to an interlaced-scanning synchronizing signal. The above structure enables the image pickup apparatus to have simple circuit, good performance, and to be usable for at least the two modes of the 525/60P mode and the 525/30P mode.
    • 在CCD模式1中操作的图像拾取装置,其中在CCD成像装置中充电的信号电荷被读出作为CCD成像装置的输出信号,在逐行扫描的每个领域中一次,或者在模式-2中,其中 在逐行扫描的每两个场中,信号电荷被读出一次(即在一个场期间)。 并且在读取信号电荷的间隔期间,CCD成像装置的输出信号根据逐行扫描同步信号写入存储器。 然后,根据逐行扫描同步信号,在模式-1中读出写入存储器中的信号,并且在模式-2中,以这样的方式,在每个奇数场中读出奇数行,甚至 根据隔行扫描同步信号在每个偶数场读出行。 上述结构使得图像拾取装置具有简单的电路,良好的性能,并且可用于至少525 / 60P模式和525 / 30P模式的两种模式。
    • 4. 发明授权
    • CCD imaging apparatus applicable to a multi-frame rate image system
    • CCD成像装置适用于多帧率图像系统
    • US07015965B2
    • 2006-03-21
    • US09880297
    • 2001-06-13
    • Ryoji AsadaTadami MineYasushi FukushimaShoji Nishikawa
    • Ryoji AsadaTadami MineYasushi FukushimaShoji Nishikawa
    • H04N5/335
    • H04N5/372H04N5/232H04N5/23293H04N5/343H04N5/353H04N5/772
    • A stable charge coupled device (CCD) imaging apparatus operable in multiple frame rates for displaying a signal having a low frame rate in a viewfinder (VF), and also a recorder built-in type imaging apparatus using the CCD imaging apparatus are presented. The imaging apparatus includes a drive pulse switching circuit for multiplying a CCD drive pulse other than a CCD read pulse by (n/2) (where n is an arbitrary integer) when the multi-frame rate is low, a frame memory for storing an output signal of the CCD of one frame right after pulse output. The signal is read at every (n/2) frames. The frame memory repeats to read out the stored signal in one frame (n/2) times. The imaging apparatus further includes a camera signal processing circuit for performing a camera process to an output signal of the frame memory, and a recorder unit for recording an output signal of the camera signal processing circuit at the frame rate of the set mode. As a result, even at a low frame rate, the apparatus displays a signal in the VF. And with a properly-selected value of n, the apparatus conducts a signal having various frame rate between a camera and the recorder at a common frame rate.
    • 提出了一种稳定的电荷耦合器件(CCD)成像设备,其以多帧速率操作,用于在取景器(VF)中显示具有低帧速率的信号,以及使用CCD成像设备的记录器内置型成像设备。 成像装置包括:驱动脉冲切换电路,用于在多帧速率低时将除CCD读取脉冲之外的CCD驱动脉冲乘以(n / 2)(其中n是任意整数);一个用于存储 脉冲输出后一帧的CCD输出信号。 每(n / 2)帧读取信号。 帧存储器重复以一帧(n / 2)次读出所存储的信号。 成像装置还包括用于对帧存储器的输出信号执行相机处理的相机信号处理电路和用于以设定模式的帧速率记录相机信号处理电路的输出信号的记录器单元。 结果,即使在低帧速率下,装置在VF中显示信号。 并且通过正确选择的n值,该装置以相同的帧速率在相机和记录器之间传送具有各种帧速率的信号。
    • 6. 发明授权
    • Guide device for automated guided vehicle
    • 自动导向车导向装置
    • US4926958A
    • 1990-05-22
    • US200975
    • 1988-06-01
    • Shoji NishikawaAkira OhkuraKatsuya Ichida
    • Shoji NishikawaAkira OhkuraKatsuya Ichida
    • B62D1/28G05D1/02B62D1/02
    • G05D1/0265B62D1/28G05D2201/0216
    • A guide device for an A.G.V. in which a magnetic field generated around a guide cable is detected by a pair of detection coils at both sides of the guide cable, and wheels are steered and driven in accordance with the detected output from the detection coils. A pair of detection coils are arranged to follow the movement of the wheels to be steered in such a manner that the detection coils are disposed away from each other at a predetermined distance from the guide cable when the A.G.V. runs a straight portion of a course, while the detection coils are positioned closer to the guide cable when the A.G.V. runs a curved portion. As a result, when the A.G.V. runs the straight portion, the sensitivity with respect to the deviation between the detection coils is kept low so that the carrier can run smoothly, when the A.G.V. runs a curved portion, the sensitivity with respect to the deviation between the detection coils is increased. Consequently, operating performance such as high speed operating performance and the minimum turning diameter can be improved.
    • A.G.V.的导向装置 其中在引导电缆的两侧通过一对检测线圈检测在导缆周围产生的磁场,并且根据检测线圈的检测输出来转向和驱动车轮。 一对检测线圈被布置成跟随待转向的车轮的移动,使得当A.G.V. 运行线路的直线部分,而当A.G.V. 运行弯曲部分。 因此,当A.G.V. 运行直线部分,相对于检测线圈之间的偏差的灵敏度保持较低,使得载体可以顺利运行,当A.G.V. 运行弯曲部分,相对于检测线圈之间的偏差的灵敏度增加。 因此,可以提高诸如高速操作性能和最小车削直径的操作性能。
    • 8. 发明申请
    • IMAGING APPARATUS, IMAGING METHOD AND INTEGRATED CIRCUIT
    • 成像装置,成像方法和集成电路
    • US20090002513A1
    • 2009-01-01
    • US12131705
    • 2008-06-02
    • Norikatsu YOSHIDAShoji NishikawaTadami MineHideyuki Furuya
    • Norikatsu YOSHIDAShoji NishikawaTadami MineHideyuki Furuya
    • H04N5/228
    • H04N5/35563H04N5/35554H04N5/3722
    • An imaging apparatus requiring a large dynamic range captures an image including a moving image with an increased dynamic range without degrading resolution. In an imaging apparatus 100, an L/S separation unit 3 generates a long-signal and a short-signal based on a video signal output from an imaging unit 1, which includes an image sensor having a first group of pixels that accumulate charge for a first charge accumulation time and a second group of pixels that accumulate charge for a second charge accumulation time. A saturation detection unit 4 detects whether the long-signal is saturated. A saturated part of the long-signal is replaced with an interpolated long-signal, which is a signal having the same signal level as the long-signal obtained by interpolation using the short-signal. A selector unit 8 outputs the resulting long-signal as a corrected long signal. An L/S combining unit 9 sequentially switches the corrected long-signal and the corrected short-signal output from a multiplier to generate an output video signal. A drive unit 2 drives an imaging unit 1 in a manner that a center time of the first charge accumulation time and a center time of the second charge accumulation time coincide with each other.
    • 需要大动态范围的成像装置捕获包括具有增加的动态范围的运动图像的图像而不降低分辨率。 在成像设备100中,L / S分离单元3基于从成像单元1输出的视频信号产生长信号和短信号,该图像信号包括具有第一组像素的图像传感器,该第一组像素累积电荷 第一电荷累积时间和第二组像素,其累积第二电荷累积时间的电荷。 饱和度检测单元4检测长信号是否饱和。 长信号的饱和部分被内插的长信号所取代,内插的长信号是与使用短信号的内插获得的长信号具有相同信号电平的信号。 选择器单元8输出所生成的长信号作为校正的长信号。 L / S组合单元9顺序地切换经校正的长信号和从乘法器输出的经校正的短信号以产生输出视频信号。 驱动单元2以第一电荷累积时间的中心时间和第二电荷累积时间的中心时间彼此一致的方式驱动成像单元1。