Variable speed reproducing apparatus for a digital video cassett

Details Variable speed reproducing apparatus for a digital video cassett Variable speed reproducing apparatus for a digital video cassett

1994-12-30

1996-06-04

Kim, W. Chris

Dynamic magnetic information storage or retrieval

Record editing

360 27, 360 51, 360 65, 358335, H04N 578, H04N 576

Patent

active

055238963

ABSTRACT:
A variable speed reproducing apparatus for a digital videocassette recorder which outputs data having an improved C/N ratio. A gate buffer receives a reproduction signal which has been amplified by a pre-amplifier and outputs only that portion of the reproduction signal which has an amplitude greater than a predetermined amount. A reproducer receives the reproduction signal which has been conditioned by a reproduction equalizer and applies the reproduced signal to a synchronizer. The synchronizer outputs reproduced data according to a clock signal produced by a phase-locked loop circuit in accordance with speed data received from a servo.

REFERENCES:
patent: 4930024 (1990-05-01), Kanda et al.
patent: 5247401 (1993-09-01), Umemoto et al.
patent: 5255126 (1993-10-01), Matsuzawa et al.
patent: 5319499 (1994-06-01), Kim et al.
patent: 5361174 (1994-11-01), Seki et al.
patent: 5404250 (1995-04-01), Hase et al.
patent: 5436771 (1995-07-01), Yun

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