Optical information storage unit for recording and/or reproducin

Details Optical information storage unit for recording and/or reproducin Optical information storage unit for recording and/or reproducin

1998-06-30

2000-09-05

Neyzari, Ali

Dynamic information storage or retrieval

Storage or retrieval by simultaneous application of diverse...

Magnetic field and light beam

369112, G11B 1100

Patent

active

061153303

ABSTRACT:
An optical information storage unit records information on and/or reproduces information from both a land and a groove of an optical recording medium which have approximately the same width. The optical information storage unit is provided with a first optical system, including a first light source and a first phase compensation means, detecting light from the land of the optical recording medium, and a second optical system, including a second light source and a second phase compensation means, detecting light from the groove of the optical recording medium. The first and second phase compensation means have mutually different phase compensation quantities.

REFERENCES:
patent: 5831942 (1998-11-01), Morimoto et al.
patent: 5898661 (1999-04-01), Morimoto
patent: 6002653 (1999-12-01), Fukumoto
High Density Land & Groove Recording with Modified Optics and PA-MFM Recording; N. Aoyama, Y. Morimoto and T. Miyahara; The Magnetics Society of Japan; pp. 233-238; 1996.

Affiliated with

Also associated with

Rating

Optical information storage unit for recording and/or reproducin does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical information storage unit for recording and/or reproducin, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical information storage unit for recording and/or reproducin will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2219665