Dynamic information storage or retrieval – Specific detail of information handling portion of system – Radiation beam modification of or by storage medium
Patent
1993-03-01
1995-03-14
Dzierzynski, Paul M.
Dynamic information storage or retrieval
Specific detail of information handling portion of system
Radiation beam modification of or by storage medium
369 13, 369 54, G11B 7125
Patent
active
053982274
ABSTRACT:
A magnetooptical recording/reproducing apparatus is provided with a device for determinating a power of a light beam which is emitted from a light source. In the apparatus, the light beam is irradiated on a magnetooptical recording medium while a magnetic field modulated according to a recording signal is applied to a portion on which the light beam is being irradiated. Light reflected from the medium upon the irradiation of the light beam thereto is detected by a detector, the output from which is used to reproduce the recording signal. The amplitude of the recording signal is detected from the reproduction signal. The power of the light beam to be emitted from the light source is determined on the basis of the detected amplitude of the recording signal.
REFERENCES:
patent: 5050156 (1991-09-01), Barton
patent: 5070495 (1991-12-01), Bletscher, Jr. et al.
patent: 5185733 (1993-02-01), Finkelstein et al.
patent: 5216659 (1993-06-01), Call et al.
patent: 5216660 (1993-06-01), Iimura
patent: 5233175 (1993-08-01), Latta
patent: 5233596 (1993-08-01), Tani
Hasegawa Koyo
Miyaoka Yasuyuki
Canon Kabushiki Kaisha
Chu Kim-Kwok
Dzierzynski Paul M.
LandOfFree
Magnetooptical recording reproducing apparatus and method for de does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Magnetooptical recording reproducing apparatus and method for de, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetooptical recording reproducing apparatus and method for de will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-717344