X-distance compensating circuit for adjusting head-switching tim

Details X-distance compensating circuit for adjusting head-switching tim X-distance compensating circuit for adjusting head-switching tim

1990-12-31

1994-01-04

Robertson, David L.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the record

360 70, 360 71, 360 7312, 360109, G11B 1552

Patent

active

052765709

ABSTRACT:
A magnetic recording/reproducing apparatus without a need to adjust what is known as X-distance of an Audio/Control head. In one embodiment, the apparatus comprises a reference pulse generator, a delay control pulses generator, and a first and second delay circuits. The apparatus compares the phase of a reproduced control pulse with that of a generated reference pulse and phase-shifts the reproduced control pulse in order to synchronize both pulses. By synchronizing the pulses, the apparatus compensates for the deviation of the X-distance. Another embodiment may be implemented using a microprocessor.

REFERENCES:
patent: 4796103 (1989-01-01), Tokuyama
patent: 5119246 (1992-06-01), Tomitaka
patent: 5177647 (1993-01-01), Takayanagi

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