Magnetic recording and reproducing apparatus

Details Magnetic recording and reproducing apparatus Magnetic recording and reproducing apparatus

1987-10-16

1989-03-07

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

General recording or reproducing

Specifics of the amplifier

360 27, G11B 502

Patent

active

048111279

ABSTRACT:
A magnetic recording and reproducing apparatus has a function of recording data on a control track of a magnetic tape by varying a duty cycle of a control pulse signal which is recorded on the control track. The apparatus stops a data recording operation when it is detected that a tape speed mode is changed from a standard play mode to an extended play mode or vice versa, so as to minimize dropout of positive polarity pulses of a reproduced control pulse signal after the tape speed mode is changed and also minimize erroneous recording of data.

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