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    • 14. 发明授权
    • High efficient image signal recording system
    • 高效图像信号记录系统
    • US5734785A
    • 1998-03-31
    • US296615
    • 1994-08-25
    • Kenichi NagasawaTadayoshi NakayamaChikara SatoKoji Takahashi
    • Kenichi NagasawaTadayoshi NakayamaChikara SatoKoji Takahashi
    • H04N9/79H04N9/82H04N5/91
    • H04N9/8205H04N9/7904
    • In an image signal recording system for recording on a recording medium an original image signal corresponding to an original picture which is comprised of a plurality of pixels, the original picture is divided into a plurality of pixel blocks each consisting of a predetermined number of pixels, and image signals each corresponding to the associated pixel block divided are recorded on the recording medium in accordance with a first recording mode and a second recording mode which are mutually different in a recording format. Either of the first and second recording modes is selected on each of the plurality of pixel blocks and a recording mode information signal corresponding to the selected recording mode is generated. There are recorded on the recording medium, the first image information signal or the second image information signal formed and the recording mode information signal generated, on a multiple basis. Thus, it is possible to provide the image signal recording system capable of efficiently recording image signals while suppressing a deterioration of the image quality.
    • 在用于在记录介质上记录与由多个像素组成的原始图像相对应的原始图像信号的图像信号记录系统中,原始图像被分成多个像素块,每个像素块由预定数量的像素组成, 并且分别对应于相关联的像素块的图像信号根据记录格式相互不同的第一记录模式和第二记录模式被记录在记录介质上。 在多个像素块中的每一个上选择第一和第二记录模式之一,并且生成与所选记录模式对应的记录模式信息信号。 在多个基础上记录在记录介质上,形成的第一图像信息信号或第二图像信息信号和所生成的记录模式信息信号。 因此,可以提供能够有效地记录图像信号同时抑制图像质量劣化的图像信号记录系统。
    • 15. 发明授权
    • Video camera with compact arrangement of parts
    • 视频摄像机配置紧凑
    • US5729291A
    • 1998-03-17
    • US324539
    • 1994-10-18
    • Chifuyu TanakaKenichi NagasawaTakeshi Abe
    • Chifuyu TanakaKenichi NagasawaTakeshi Abe
    • G11B31/00H04N5/225H04N5/222
    • G11B31/006H04N5/2251Y10S358/906
    • A photographic optical system and a viewfinder are disposed above a recorder casing for recording a signal obtained by photography. The photographic optical system and the viewfinder are disposed so as not to overlap each other in a direction parallel to an optical axis of the photographic optical system and so that an optical path of the photographic optical system and an optical path of the viewfinder overlap each other as viewed on an extended line of the optical axis of the photographic optical system. In addition, the photographic optical system is disposed above the recorder casing, and the recorder casing is arranged to eject downward a recording medium for recording of a signal obtained by photography. A grip is disposed on one side of the aforesaid recorder casing, and an operating part for driving a mechanism for varying the magnification of the photographic optical system is provided at the rear of the photographic optical system.
    • 照相光学系统和取景器设置在记录器壳体上方,用于记录通过摄影获得的信号。 照相光学系统和取景器被设置为在与摄影光学系统的光轴平行的方向上不彼此重叠,并且使得摄影光学系统的光路和取景器的光路彼此重叠 如在照相光学系统的光轴的延长线上观察的。 此外,照相光学系统设置在记录器壳体上方,并且记录器壳体布置成向下弹出用于记录通过摄影获得的信号的记录介质。 手柄设置在上述记录器壳体的一侧,并且用于驱动用于改变摄影光学系统的放大率的机构的操作部分设置在摄影光学系统的后部。
    • 17. 发明授权
    • Video signal recording apparatus having an interval recording mode
compatible with an overlap recording mode
    • 具有与重叠记录模式兼容的间隔记录模式的视频信号记录装置
    • US5598275A
    • 1997-01-28
    • US265623
    • 1994-06-24
    • Kenichi NagasawaKoji TakahashiChikara Sato
    • Kenichi NagasawaKoji TakahashiChikara Sato
    • H04N5/765G11B20/02G11B27/024H04N5/225H04N5/265H04N5/77H04N5/7826H04N5/91H04N5/92H04N9/82H04N5/262H04N5/76
    • H04N5/2621G11B27/024H04N5/77H04N5/772H04N9/8227Y10S358/906
    • A video signal recording apparatus includes a memory for storing a one-picture portion of an input video signal. An overlapping device gradually switches a first video signal, read from the memory, to a second video signal during a first predetermined time period, and provides an output video signal. A recording device records the video signal output from the overlapping device. A first manual operation member sets the video signal recording apparatus to an overlap mode, in which the overlapping device is operated in response to a start of recording by the recording device. A second manual operation member sets the video signal recording apparatus to an interval recording mode, in which the recording device is periodically operated to record during every second predetermined time period. A determination device determines the first and second predetermined time periods such that the second predetermined time period is longer than the first predetermined time period when the video signal recording apparatus is in the overlap mode and in the interval recording mode.
    • 视频信号记录装置包括用于存储输入视频信号的一个图像部分的存储器。 重叠装置在第一预定时间段期间逐渐地将从存储器读取的第一视频信号切换到第二视频信号,并提供输出视频信号。 记录装置记录从重叠装置输出的视频信号。 第一手动操作构件将视频信号记录装置设置为重叠模式,其中重叠装置响应于记录装置的开始记录而被操作。 第二手动操作构件将视频信号记录装置设置为间隔记录模式,其中记录装置在每隔一个预定时间周期期间周期性地操作以记录。 确定装置确定第一和第二预定时间段,使得第二预定时间段比视频信号记录装置处于重叠模式和间隔记录模式时的第一预定时间段长。
    • 18. 发明授权
    • Image signal recording system
    • 图像信号记录系统
    • US5198940A
    • 1993-03-30
    • US798035
    • 1991-11-20
    • Kenichi NagasawaTadayoshi NakayamaKoji TakahashiMasahiro Takei
    • Kenichi NagasawaTadayoshi NakayamaKoji TakahashiMasahiro Takei
    • H04N7/26H04N7/46H04N9/797H04N9/81H04N9/82
    • H04N9/81H04N19/59H04N9/797H04N19/30H04N9/8205H04N9/8233
    • An image signal recording system for recording an image signal corresponding to an original picture comprised of m picture elements (m being an integer, m.gtoreq.4) on a recording medium, in which the original picture is divided into m/n picture element blocks, each comprised of n picture elements (n being a measure, 2.ltoreq.n.ltoreq.m); and first image information signals are formed by sampling a first picture element out of n picture elements constituting each picture element block on the basis of a first sampling mode, a second image information signal is formed by sampling a second picture element which is different from the first picture element on the basis of second sampling mode and the first image information signal and the second image information signal are recorded on a track having first and second areas which form continuous areas on the recording medium, respectively, in such manner that the first image information signal is recorded on the first area and the second image information signal is recorded on the second area.
    • 一种图像信号记录系统,用于在原始图像被分割成m / n像素的记录介质上记录与由m个图像元素(m为整数,m> = 4)组成的原始图像相对应的图像信号 块,每个由n个图像元素组成(n是度量,2≤n≤m); 并且第一图像信息信号通过基于第一采样模式对构成每个图像元素块的n个图像元素中的第一图像元素进行采样而形成,第二图像信息信号通过对与第二图像信号不同的第二图像元素进行采样来形成 基于第二采样模式的第一图像元素和第一图像信息信号和第二图像信息信号被分别记录在具有在记录介质上形成连续区域的第一和第二区域的轨道上,使得第一图像 信息信号被记录在第一区域上,第二图像信息信号被记录在第二区域上。