发明名称 |
Track crossing method using dual counters |
摘要 |
A system for controlling the number of data tracks crossed by the tracking head of a recording/playback device as the tracking head moves in a desired direction over a recording medium includes a counter having n output terminals. The counter is initially set to a count representative of the desired number of data tracks to be crossed as the tracking head moves in the desired direction. An further counter, also having n output terminals individually corresponding to the output terminals of the counter, is set to a predetermined count. Counting pulses are provided to the counter when the tracking head moves in the desired direction and to the further counter when the tracking head moves in a direction opposite from the desired direction. The output terminals are compared and a stop signal is generated when all terminals of both counters show that both counters are in the same state.
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申请公布号 |
US5313440(A) |
申请公布日期 |
1994.05.17 |
申请号 |
US19920871442 |
申请日期 |
1992.04.21 |
申请人 |
DEUTSCHE THOMSON-BRANDT GMBH |
发明人 |
FUELDNER, FRIEDRICH;GLEIM, GUENTER;REKLA, BERND |
分类号 |
G11B7/085;(IPC1-7):G11B7/00 |
主分类号 |
G11B7/085 |
代理机构 |
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地址 |
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