Phase correction circuit

Details Phase correction circuit Phase correction circuit

1991-12-03

1994-01-11

Psitos, Aristotelis

Dynamic magnetic information storage or retrieval

General recording or reproducing

Signal switching

360 69, G11B 1514, G11B 1518, G11B 1700, G11B 1902

Patent

active

052787052

ABSTRACT:
A phase-correction circuit comprises an amplifier, comparators, inverters, an S/R flip-flop, a switch and, a pulse width controller. The circuit sets a reference of recording position of a head to a tape and corrects the phase differences between the head, a magnet and a pulse generator, thereby realizing precise drum phase servo action and acquiring excellent audio and video recording and reproducing.

REFERENCES:
patent: 3577194 (1971-05-01), Beall
patent: 3585633 (1971-06-01), Young
patent: 4127881 (1978-11-01), Wakami et al.
patent: 4531162 (1985-07-01), Tokumitsu
patent: 4706137 (1987-11-01), Tanaka
patent: 4914534 (1990-04-01), Chito
patent: 4920433 (1990-04-01), Ito
patent: 5089919 (1992-02-01), Kozuki et al.

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