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1. 发明授权

US4870507A Video tape recorder system 失效
标题翻译：录像机系统
公开(公告)号：US4870507A
公开(公告)日：1989-09-26
申请号：US94381
申请日：1987-09-04
申请人： Jung-ku Ahn , Jong-ahn Kim , Jong-Kwan Paik , Hee-Chul Gong
发明人： Jung-ku Ahn , Jong-ahn Kim , Jong-Kwan Paik , Hee-Chul Gong
IPC分类号： G11B20/12 , G11B5/008 , G11B5/78 , G11B15/467 , G11B15/61 , H04N5/7826 , H04N9/802 , H04N9/83 , H04N9/835
CPC分类号： H04N9/8355 , G11B15/4678 , G11B15/61 , G11B5/0086 , H04N5/7826 , H04N5/78263
摘要： A tape format of 4-mm wide video tape for use in a video tape recorder adopting helical scanning and azimuth recording methods is disclosed in conjunction with a video tape recorder system thereof, which enables the video tape recorder to achieve the greatest size-reduction and improve the resolution in picture reproducing by raising the S/N ratio of video signals. The tape format includes a video width area for an automatic track finding signal to control the traveling of tape and the video signal consisting of color signals and luminance signals, an option track area for recording audio signals, a first guide area for keeping the minimum part of tape in touch with the upper drum, a second guide area for separating the audio signals of the option track area from the video signals of the video width area, and first and second overlap areas respectively below the first guide area and above the second guide area, provided for overlapping the video signals on the edges of video tracks in recording operation.
摘要翻译：与使用磁带录像机系统的磁带录像机系统一起公开了采用螺旋扫描和方位记录方法的磁带录像机中使用的4毫米宽的录像带的磁带格式，这使得录像机能够实现最大的尺寸减小和通过提高视频信号的S / N比来提高图像再现的分辨率。磁带格式包括用于控制磁带行进的自动轨迹查找信号的视频宽度区域和由彩色信号和亮度信号组成的视频信号，用于记录音频信号的选项轨道区域，用于保持最小部分的第一引导区域与上鼓相接触的磁带，用于将选项轨道区域的音频信号与视频宽度区域的视频信号分离的第二引导区域以及分别在第一引导区域的下方和第二引导件的上方的第一和第二重叠区域区域，用于在记录操作中重叠视频轨道的边缘上的视频信号。

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