Magneto-optical medium and recording and/or reproducing apparatu

Dynamic information storage or retrieval – Condition indicating – monitoring – or testing – Including radiation storage or retrieval

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

369 47, G11B 700

Patent

active

055792944

ABSTRACT:
An apparatus for recording and/or reproducing a magneto-optical recording medium having a recording layer, a reproducing layer and an intermediate layer for magnetically coupling the recording layer and the reproducing layer in a stationary state, in which the magnetic coupling between the recording layer and the reproducing layer is only able to take place in an area in which a temperature is increased to be higher than a predetermined temperature by the radiation of a light upon reproducing and in which a recorded information held in the recording layer is read out from the reproducing layer in the radiated area. This magneto-optical recording medium is characterized in that a Curie temperature of the intermediate layer is selected to be 150.degree. C. or more. Also, an apparatus which performs the above-mentioned functions and additionally which is capable of recording and/or reproducing conventional magneto-optical discs which reproduce and/or record over the entire area of irradiation.

REFERENCES:
patent: 4800550 (1989-01-01), Yamauchi
patent: 5168482 (1992-12-01), Aratani et al.
patent: 5309421 (1994-05-01), Fujisawa

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Magneto-optical medium and recording and/or reproducing apparatu does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Magneto-optical medium and recording and/or reproducing apparatu, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magneto-optical medium and recording and/or reproducing apparatu will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1978649

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.