High density optical disc and optical disc player

Dynamic information storage or retrieval – Storage medium structure – Optical track structure

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

3692753, G11B 370

Patent

active

058386572

ABSTRACT:
An optical disc having a track pitch of 0.85 .mu.m, a shortest pit length of 0.49 .mu.m, a pit depth of 100 nm, and a pit width of 0.35 .mu.m is rotate at a linear velocity of 2.4-2.8 m/s such that the same is optically reproduced by a laser beam having a wavelength of 635 nm which is converged to a spot size of 0.9 .mu.m by an objective lens having a numerical aperture of 0.6. Accordingly, data is read from the optical disc at a transfer rate of 5.6 Mbps.

REFERENCES:
patent: 5040165 (1991-08-01), Taii et al.
patent: 5214629 (1993-05-01), Watanabe et al.
patent: 5216646 (1993-06-01), Imanaka et al.
patent: 5353265 (1994-10-01), Maeda et al.
patent: 5383176 (1995-01-01), Inui et al.
patent: 5517486 (1996-05-01), Haneda
patent: 5617406 (1997-04-01), Onagi et al.

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

High density optical disc and optical disc player does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High density optical disc and optical disc player, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High density optical disc and optical disc player will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-891873

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