Method for detecting and evaluating dropouts in recording media

Details Method for detecting and evaluating dropouts in recording media Method for detecting and evaluating dropouts in recording media

1986-12-29

1988-06-28

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Magnetic

Magnetic information storage element testing

360 31, G01R 3312, G11B 2736

Patent

active

047542225

ABSTRACT:
A method and circuit arrangements for detecting and evaluating dropouts or drop-ins on recording media, comprising reading and modifying the recorded digital signals, the size and type of fault being evaluated on the basis of fixed threshold levels. In the case of a dropout, for example, the fault is weighted by determining the differential of the envelope of the read signal. In the case of a drop-in, other noise signals are left out of consideration by nonlinear emphasis of the drop-in and appropriate choice of the threshold value. A circuit combination enables both dropouts and drop-ins to be detected and evaluated.

REFERENCES:
patent: 3185922 (1965-05-01), Wherry
patent: 3288986 (1966-11-01), Muto
patent: 3522525 (1970-08-01), Cottin et al.
patent: 3525930 (1970-08-01), Hodge
patent: 3562635 (1971-02-01), Parker
patent: 3659185 (1972-04-01), Gregorich
patent: 3659195 (1972-04-01), Cardozo et al.
patent: 3717846 (1973-02-01), Kanda et al.
patent: 3826975 (1974-07-01), Geller
patent: 4146099 (1979-03-01), Matsushima et al.

Affiliated with

Also associated with

Rating

Method for detecting and evaluating dropouts in recording media does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for detecting and evaluating dropouts in recording media , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for detecting and evaluating dropouts in recording media will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1917213