发明名称 |
PROCEDE ET DISPOSITIF DE SYNCHRONISATION DE SIGNAUX NUMERIQUES POUR DES ENREGISTREURS MAGNETIQUES A TETES TOURNANTES |
摘要 |
A timing error between consecutive tracks of reproduced data from a rotary scan recording/reproducing device is detected as a difference between a normal and actual occurrence of a synchronization signal. A correction signal is provided to reduce the timing error and it is stored, updated and utilized to offset a bit counter synchronous with the reproduced data in the absence of the synchronization signal. The effect of short term dynamic errors is reduced by accumulating occurrences of the timing error in the same direction and updating the stored correction signal only when a predetermined number of occurrences in one direction is obtained. |
申请公布号 |
FR2544145(B1) |
申请公布日期 |
1990.09.21 |
申请号 |
FR19840005294 |
申请日期 |
1984.04.04 |
申请人 |
AMPEX CORP |
发明人 |
KIRK H. HANDLEY |
分类号 |
H04N5/95;G11B20/10;G11B20/12;G11B20/22;G11B27/10;G11B27/13;G11B27/30;(IPC1-7):H04L7/00;H04N5/93 |
主分类号 |
H04N5/95 |
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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