Information signal reproducing apparatus having a tracking contr

Details Information signal reproducing apparatus having a tracking contr Information signal reproducing apparatus having a tracking contr

1988-08-17

1990-04-10

Stephan, Steven L.

Dynamic magnetic information storage or retrieval

Record editing

360 103, 360 70, 360 7305, 360 7312, 360 7715, H04N 5783

Patent

active

049165542

ABSTRACT:
In an information signal reproducing apparatus of the kind reproducing an information signal from a tape-shaped recording medium on which pilot signals of four different kinds having different frequencies are cyclically recorded in rotation along with the information signal, reference signals of four different kinds which correspond to the pilot signals of four different kinds and are generated one after another in a switch-over cycle to be used for tracking control together with these pilot signals. The reference signals are arranged to be generated one after another in a switch-over cycle which differs from the normal switch-over cycle during a specific period following change-over of the tape-shaped medium moving speed from one speed to another.

REFERENCES:
patent: 4439799 (1984-03-01), Haubrich
patent: 4563714 (1986-01-01), Takeuchi
patent: 4590523 (1986-05-01), Honjo
patent: 4636882 (1987-01-01), Edakubo
patent: 4677503 (1987-06-01), Nagasawa et al.
patent: 4686589 (1987-08-01), Takimoto

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