Frequency response equalizer

Details Frequency response equalizer Frequency response equalizer

1977-01-26

1978-08-29

Lucas, Jay P.

Dynamic magnetic information storage or retrieval

General recording or reproducing

Specifics of equalizing

325473, G11B 545

Patent

active

041107985

ABSTRACT:
A frequency response equalizer includes a parallel combination of a low-pass integrating circuit and a high-pass differentiating circuit. Both circuits receive an input signal from a reproduce head followed by a preamplifier. Each circuit provides a 90.degree. phase shift with respect to the input signal, equal in magnitude and opposite in sense. A subtraction circuit coupled to the respective outputs of both the integrating and differentiating circuit provides a difference signal of the respective output signals of both circuits. The resulting difference signal represents an amplitude and phase equalized signal.

REFERENCES:
patent: 3436490 (1969-04-01), Roelofs
patent: 3831192 (1974-08-01), Gross
patent: 3871024 (1975-03-01), Camras
IBM Technical Discl. Bull., #8, vol. 16, Jan. 1974, p. 2487.

Affiliated with

Also associated with

Rating

Frequency response equalizer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Frequency response equalizer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Frequency response equalizer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1637192