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VTR TAPE POSITION RETRIEVING METHOD

机译:VTR磁带位置检索方法

摘要

PURPOSE:To retrieve a position signal quickly and correctly by writing the users bit special information of time code signal over the prescribed frame of a magnetic tape special position to be retrieved and when the special information is detected, stopping a magnetic tape. CONSTITUTION:When a special position P1 of a magnetic tape in which special information 6 is recorded, is retrieved the magnetic tape is travelled at a high speed, the users bit of a time code signal 4 is read and 'ABCDEFOn' written as the special information 6 is detected N times, the magnetic tape is rewound for a prescribed quantity only, the travelling direction of the magnetic tape is changed over again, the users bit of the time code signal 4 is read at the speed lower than the high speed travelling again, when the 'ABCDEFOn' is detected, for example, 14 times, it is concluded to be the special information 6, and when the 'ABCDEFOn' of 15 times is detected, the travelling of the magnetic tape is stopped. Thus, it is not necessary that a users bit UB only of a time code signal 2 records the special information to show the retrieving position and a time signal, etc., are rewritten to the special information.
机译:目的:通过在要检索的磁带特殊位置的规定帧上向用户写入时间码信号的特殊信息,并在检测到特殊信息时停止磁带,从而快速正确地检索位置信号。组成:当记录有特殊信息6的磁带的特殊位置P1被检索到时,磁带以高速行进,则读取时间码信号4的用户位,并将“ ABCDEFOn”写入特殊位置N次检测到信息6,仅将磁带倒带预定量,再次改变磁带的行进方向,以低于高速行进的速度读取时间码信号4的用户位再次,当例如检测到“ ABCDEFOn”为14次时,得出结论为特殊信息6,而当检测到“ ABCDEFOn”为15次时,磁带的移动停止。因此,没有必要仅时间码信号2的用户比特UB记录特殊信息以示出检索位置,并且时间信号等被重写为特殊信息。

著录项

  • 公开/公告号JPS6331054A

    专利类型

  • 公开/公告日1988-02-09

    原文格式PDF

  • 申请/专利权人 MATSUSHITA ELECTRIC IND CO LTD;

    申请/专利号JP19860174184

  • 发明设计人 SAITO KENJI;

    申请日1986-07-24

  • 分类号G11B15/087;

  • 国家 JP

  • 入库时间 2022-08-22 07:03:50

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