发明名称 |
Process for detecting transported and residual tape amounts |
摘要 |
A process for calculating the amount of recording tape or time left remaining on a tape reel includes sensing the rotational period of both the supply and take-up reels, and performing operations on this data to derive the value for the remaining/transported tape amount, the operations performed depending upon the direction of tape travel. In addition, the process may include disregarding data obtained during times of highly variable tape speed, such as when changing tape transport direction, etc. The invention may be used in connection with a reversible-type tape recorder capable of reproduction or recording in both tape transport directions.
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申请公布号 |
US4479159(A) |
申请公布日期 |
1984.10.23 |
申请号 |
US19820351564 |
申请日期 |
1982.02.23 |
申请人 |
PIONEER ELECTRONIC CORPORATION |
发明人 |
KAMEI, KAZUO;ORIMOTO, AKIRA |
分类号 |
G11B27/17;G11B27/34;(IPC1-7):G11B19/28 |
主分类号 |
G11B27/17 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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