Method and apparatus for evaluating a recording system utilizing

Details Method and apparatus for evaluating a recording system utilizing Method and apparatus for evaluating a recording system utilizing

1985-12-02

1987-07-21

Strecker, Gerard R.

Dynamic magnetic information storage or retrieval

General recording or reproducing

Specifics of the amplifier

307511, 324212, 328 55, 328207, G11B 2700, G11B 502, H03K 5159

Patent

active

046822526

ABSTRACT:
A system for evaluating a recording system is disclosed, which includes a monostable multivibrator (MMV) for receiving the recovered data stream from the disc drive. The time constant of the MMV is controlled by a second, matched MMV which receives a fixed frequency input. By applying the output of this matched MMV to another input of the MMV receiving the recovered data, the time constant of the first multivibrator may be adjusted with the delay being a function of the period of the input frequency to the second multivibrator.

REFERENCES:
patent: 3199094 (1965-08-01), Bakshi
patent: 3202769 (1965-08-01), Coleman
patent: 3368152 (1968-02-01), Jorgensen
patent: 3417337 (1968-12-01), Prasil
patent: 3921213 (1975-11-01), McGrath et al.
patent: 4394695 (1983-07-01), Mahon
patent: 4578721 (1986-03-01), Brannan

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