Reproduced signal waveform control device for magnetoresistive h

Details Reproduced signal waveform control device for magnetoresistive h Reproduced signal waveform control device for magnetoresistive h

1997-08-11

2000-06-06

Hindi, Nabil

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Head amplifier circuit

360 39, 360 65, 360113, G11B 509

Patent

active

060726474

ABSTRACT:
When a reproduced signal is outputted from the MR head to the envelope detector, the positive envelope joining positive peaks and the negative envelope joining negative peaks are outputted from the envelope detector to the asymmetry detector. An asymmetry value or fluctuation value of the reproduced signal waveform can be found through comparison of the positive envelope and negative envelope and calculation at the asymmetry detector. If these values do not fall within a desired or permissible range, a high degree of asymmetry is indicated in the reproduced signal waveform, and the sense current controller accordingly alters the sense current value. This operation is continued until the envelope of the reproduced signal waveform resulting from the new sense current falls within the desired or permissible range.

REFERENCES:
patent: 4914398 (1990-04-01), Jove et al.
patent: 5483393 (1996-01-01), Mento et al.
patent: 5625505 (1997-04-01), Ohmori et al.
patent: 5744993 (1998-04-01), Sonntag

Affiliated with

Also associated with

Rating

Reproduced signal waveform control device for magnetoresistive h does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Reproduced signal waveform control device for magnetoresistive h, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reproduced signal waveform control device for magnetoresistive h will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2218808