Dynamic information storage or retrieval – Storage medium structure – Optical track structure
Patent
1988-04-23
1991-11-26
Weinhardt, Robert
Dynamic information storage or retrieval
Storage medium structure
Optical track structure
358342, 3692755, 369109, G11B 724, H04N 585
Patent
active
050688464
ABSTRACT:
A record carrier for information, for example video and/or audio information, in the form of a disk-shaped carrier substrate provided with an optical structure in accordance with the information is described. By making the optical structure radiation-reflecting and the substrate radiation-transmitting, while the surface of the substrate more remote from the optical structure forms both the entrance face and the exit face for the read radiation, and by coating a surface of the optical structure more remote from the substrate with an additional layer, a simple record carrier is obtained which is well protected against dust particles and damage.
REFERENCES:
patent: 1898040 (1933-02-01), Eldred
patent: 1967882 (1934-07-01), Hammond
patent: 2092892 (1937-09-01), Runge
patent: 2595670 (1952-05-01), Goehner
patent: 3174140 (1965-03-01), Hagopian et al.
patent: 3430966 (1969-03-01), Gregg
patent: 3518442 (1970-06-01), Johnson
patent: 3534166 (1970-10-01), Korpel
patent: 3626386 (1971-12-01), Feinleib
patent: 3636526 (1972-01-01), Feinleib
patent: 3665425 (1972-05-01), Feinleib
patent: 3665483 (1972-05-01), Becker et al.
patent: 3696344 (1972-10-01), Feinleib et al.
patent: 3764759 (1973-10-01), Herriger et al.
patent: 3795902 (1974-03-01), Russell
patent: 3833769 (1974-09-01), Compaan et al.
patent: 3838401 (1974-09-01), Graf et al.
patent: 3848095 (1974-11-01), Wohlmut et al.
patent: 3876841 (1975-04-01), Kramer et al.
patent: 3876842 (1975-04-01), Bouwhuis
patent: 3999009 (1976-12-01), Bouwhuis
patent: 4010317 (1977-03-01), Bouwhuis
patent: 4041530 (1977-08-01), Kramer et al.
"Long Play Video Disc with Optical Scanning", Funk Technik, No. 19, pp. 692-694, Oct. 1972.
"Philips TV Disk, Read by Light Beam, Could Shape Market", Electronics, Sep. 11, 1972, pp. 29-30.
Rice et al., An Experimental Television Recording and Playback System Using Photographic Discs, Journal of the SMPTE, vol. 79, No. 11, 11/70, pp. 997-1002.
Eason Leroy
Tamoshunas Algy
U.S. Philips Corporation
Weinhardt Robert
LandOfFree
Reflective optical record carrier does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Reflective optical record carrier, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reflective optical record carrier will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2390031