Dynamic information storage or retrieval – Specific detail of information handling portion of system – Radiation beam modification of or by storage medium
Patent
1993-09-13
1995-09-19
Epps, Georgia Y.
Dynamic information storage or retrieval
Specific detail of information handling portion of system
Radiation beam modification of or by storage medium
3692753, 3692754, 369278, 369 4426, G11B 700
Patent
active
054522846
ABSTRACT:
Both concave and convex portions formed spirally or concentrically on an optical information recording medium are used as recording tracks, in which identification signals including position information on the optical information recording medium and so on are recorded in advance, and information signals are recorded by use of the change of a local optical constant or a physical shape caused by radiating a light beam. The identification signals are disposed in recording tracks of the concave portions, and shifted before and behind in the track direction so as not to be adjacent to each other in the radial direction.
REFERENCES:
patent: 4049013 (1978-06-01), Hill et al.
patent: 5126989 (1992-06-01), Tinet
patent: 5199022 (1993-03-01), Suzuki et al.
patent: 5268887 (1993-12-01), Honguh et al.
patent: 5270998 (1993-12-01), Uchiumi
patent: 5303225 (1994-04-01), Satoh et al.
Murayama et al., "Optical Disk Technique", Radio Gijutsusha, Third Edition, pp. 163-164, Feb. 10, 1989.
Gotoh Yasuhiro
Miyagawa Naoyasu
Chu Kim-Kwok
Epps Georgia Y.
Matsushita Electric - Industrial Co., Ltd.
LandOfFree
Optical recording/reproducing medium and apparatus using land an 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 recording/reproducing medium and apparatus using land an, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical recording/reproducing medium and apparatus using land an will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1834247