Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the head
Patent
1986-10-02
1988-11-15
Cardillo, Raymond F.
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Controlling the head
360 78, G11B 15087
Patent
active
047853603
ABSTRACT:
In an information signal recording and reproducing apparatus arranged to record in rotation pilot signals of a plurality of kinds having different frequencies, one in each of recording tracks along with an information signal on a recording medium and to reproduce the information signal from the recording medium, the relative positions of a rotary head which is reproducing the information signal and the recording medium are controlled by using the pilot signals reproduced by the rotary head and reference signals of a plurality of kinds which are of different frequencies corresponding respectively to the pilot signals of the plurality of kinds and are generated in rotation; and the generating sequence of these reference signals is changed by skipping a given number of reference signals according to signals reproduced by a rotary erase head during a reproducing operation.
REFERENCES:
patent: 4663673 (1987-05-01), Doutsubo
Edakubo Hiroo
Kozuki Susumu
Nagasawa Kenichi
Otokawa Mitsuhiro
Satoh Keiji
Canon Kabushiki Kaisha
Cardillo Raymond F.
Robertson David L.
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