Processing read-back signals in magnetic disk systems

Details Processing read-back signals in magnetic disk systems Processing read-back signals in magnetic disk systems

1979-12-21

1981-12-15

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

General recording or reproducing

Specifics of the amplifier

360 65, G11B 545

Patent

active

043062571

ABSTRACT:
The signal read-back from a magnetic disk is processed in dependance upon the track diameter in order to cut higher frequencies for outer tracks and to boost high frequencies for inner tracks for, respectively, correcting flat signal portions and eliminating or reducing peak displacement. The circuit develops a signal-amplitude-modifying factor in form of a cosine function of the frequencies of the read-back signal as applied. Two thus modified read-back signals are developed, varying oppositely in strength in dependance upon the track diameter. These two signals are combined to obtain the selective cutting or boosting as required.

REFERENCES:
patent: 2901737 (1959-08-01), Stouall, Jr.
patent: 3032719 (1962-05-01), Beck
patent: 3430215 (1969-02-01), Krossa et al.
patent: 3465321 (1969-09-01), Reisfeld
patent: 3660821 (1972-05-01), Weber et al.
patent: 4165495 (1979-08-01), Takahashi

Affiliated with

Also associated with

Rating

Processing read-back signals in magnetic disk systems does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Processing read-back signals in magnetic disk systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Processing read-back signals in magnetic disk systems will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1906648