Arrangement for reproducing a digital signal from a track on a m

Details Arrangement for reproducing a digital signal from a track on a m Arrangement for reproducing a digital signal from a track on a m

1993-10-25

1994-08-02

Hajec, Donald

Dynamic magnetic information storage or retrieval

General recording or reproducing

Specifics of equalizing

360113, G11B 5035, G11B 5127, G11B 533

Patent

active

053351215

ABSTRACT:
An arrangement for reproducing a digital signal from a track on a magnetic record carrier (20) includes a magnetic read head (21) having a magneto resistive element ( 107), and an equalizer filter circuit (23) for equalizing the output signal of the read head. The equalizer filter circuit (23) includes an IIR filter (29) and FIR (30). The IIR filter (29) equalizes magnitude and group delay of the signal applied to its input in a low frequency region of the signal frequency range. The FIR filter equalizes at least the magnitude of the signal applied to its input in a higher frequency region of the signal frequency range. Viewed in the direction of transport of the record carrier, the MR head has a front side and a back side. One of the sides (41) has a magnetic shielding for the MR element (107) which is larger than the magnetic shielding of the other side (40). The MR head (21) is positioned relative to the track so that the front side (40) has the lesser magnetic shielding.

REFERENCES:
patent: 3975772 (1976-08-01), Lin
patent: 4011585 (1977-03-01), Sunaga
patent: 4314288 (1982-02-01), Gyi
patent: 4928287 (1990-05-01), Tanaka
patent: 5181149 (1993-01-01), Katsumata et al.
T. Carr et al., "A 107-kb PI, 16-um Track Width Recording Channel", IEEE Transactions on Magnetics, vol. 24, No. 6, Nov. 1988, pp. 2961-2962.
M. R. Campbell et al., "An Algorithmic Procedure for Designing Hybrid FIR/IIR Digital Filters", Bell System Technical Journal, vol. 55, No. 1, Jan. 1976 pp. 89-108.

Affiliated with

Also associated with

Rating

Arrangement for reproducing a digital signal from a track on a m does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Arrangement for reproducing a digital signal from a track on a m, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Arrangement for reproducing a digital signal from a track on a m will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-68803