Dynamic magnetic information storage or retrieval – General recording or reproducing – Specifics of the amplifier
Patent
1990-12-27
1992-06-30
Canney, Vincent P.
Dynamic magnetic information storage or retrieval
General recording or reproducing
Specifics of the amplifier
G11B 1514
Patent
active
051268930
ABSTRACT:
The present invention discloses a circuit for reproducing a digital signal which is recorded on a recording medium with high density. The reproducing circuit of the present invention adds an output obtained by differentially amplifying the signal, picked up with a playback head, with respect to a predetermined reference voltage, an amplified output delayed by a predetermined time 1T and a different amplified output delayed by 2T, thereby widening the pulse width of the reproduced waveform to be equalized. Accordingly, even a feeble isolated pulse of high density can be exactly reproduced, and the deterioration of the reproducing picture quality or the sound quality can be prevented.
Canney Vincent P.
Samsung Electronics Co,. Ltd.
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