G - Physics – 11 – B
Patent
G - Physics
11
B
352/11
G11B 15/467 (2006.01) G11B 15/18 (2006.01)
Patent
CA 1310110
Abstract of the Disclosure The present invention discloses a method of repro- ducing a rotary head type tape recorder, according to which, based on the detection of reproduction of a syn- chronizing signal of each of ATF areas which have been recorded and formed at the starting and terminal ends of each track of a magnetic tape, crosstalk components of pilot signals from two tracks adjacent to a trace track are sampled, thereby to control a reproduction tracking according to an area division type ATF method. When reproducing the magnetic tape which has been recorded in a long-time mode in which the tape travelling speed and the drum revolution speed are re- spectively set to 1/2 of the standard travelling speed and to 1/2 of the standard revolution speed, the tape travelling speed is set to 1/2 of the standard travelling speed (i.e., a travelling speed determined for the long-time mode), and the drum revolution speed is set to the standard revolution speed (i.e., a speed double of the revolution speed determined for the long- time mode). For every continuous two traces, the samp- ling is stopped for the ATF area at the terminal end of the succeeding trace, and the sampling is also stopped for the next continuous two traces. When reproducing the tape in the long-time mode, a high-precision tracking control is achieved to assure a good reproduction.
583391
Marks & Clerk
Sanyo Electric Co. Ltd.
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