Apparatus and method for reproducing data from a magneto-optic r

Details Apparatus and method for reproducing data from a magneto-optic r Apparatus and method for reproducing data from a magneto-optic r

1997-06-26

1999-10-12

Tran, Thang V.

Dynamic information storage or retrieval

Storage or retrieval by simultaneous application of diverse...

Magnetic field and light beam

369110, 369116, G11B 700

Patent

active

059663472

ABSTRACT:
A data reproducing device and method for reproducing data recorded on a magneto-optic recording medium having at least a recording layer and a reproducing layer. The device and method include a beam directing unit for directing a pulsed laser beam having a frequency higher than a frequency of any data signal recorded on the recording layer to reproduce the recorded data, a processing unit for detecting first and second polarized components of the pulsed laser beam reflected from the magneto-optic recording medium and corresponding to a direction of magnetization transferred from the recording layer to the reproducing layer, and outputting a RF signal based on this detection, and a low pass filter for filtering the RF signal to generate a reproduction signal representing the data recorded on the recording layer.

REFERENCES:
patent: 5189659 (1993-02-01), Ohta
patent: 5398227 (1995-03-01), Miyaoka et al.
patent: 5488604 (1996-01-01), Negishi
patent: 5495456 (1996-02-01), Oka et al.
patent: 5577017 (1996-11-01), Yamamoto et al.
patent: 5659537 (1997-08-01), Hirokane et al.
patent: 5681633 (1997-10-01), Onagi et al.
patent: 5691072 (1997-11-01), Izumi et al.
patent: 5701280 (1997-12-01), Miyashita

Affiliated with

Also associated with

Rating

Apparatus and method for reproducing data from a magneto-optic r does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus and method for reproducing data from a magneto-optic r, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for reproducing data from a magneto-optic r will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-658911