Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system
Patent
1994-12-12
1999-02-16
Young, W. R.
Dynamic information storage or retrieval
With servo positioning of transducer assembly over track...
Optical servo system
369109, 369111, 3692754, G11B 700
Patent
active
058727493
ABSTRACT:
The present invention concerns an arrangement for reading an optically readable carrier on which data is stored in the form of diffractive elements. The data elements each have a plurality of adjacent tracks on the carrier with data elements being positioned on adjacent tracks. The system utilizes an illumination device for projecting a light onto the carrier in order to obtain diffraction of light along the entire length of each of the data elements with an optical arrangement collecting light emerging from the carrier. The optical arrangement is configured and positioned so that light which emerges from the carrier is selectively collected as a function of the angular direction of light from the carrier. The collected light is converted into a data readout signal.
REFERENCES:
patent: 3198880 (1965-08-01), Toulon
patent: 3228015 (1966-01-01), Miyata
patent: 3287563 (1966-11-01), Clinis
patent: 3530258 (1970-09-01), Gregg et al.
patent: 3534166 (1970-10-01), Korpel
patent: 3654401 (1972-04-01), Dickopp et al.
patent: 3658954 (1972-04-01), Broadbent
patent: 3687664 (1972-08-01), Broadbent
patent: 3688025 (1972-08-01), Whitemore, Jr.
patent: 3715524 (1973-02-01), Adler
patent: 3798388 (1974-03-01), Dickopp
patent: 3829622 (1974-08-01), Elliot
patent: 3833769 (1974-09-01), Compan et al.
patent: 3838401 (1974-09-01), Graf et al.
patent: 3855426 (1974-12-01), Bouwhuis
patent: 3924062 (1975-12-01), Broadbent
patent: 3956582 (1976-05-01), Bouwhis
patent: 3999009 (1976-12-01), Bouwhuis
patent: 4041530 (1977-08-01), Kramer et al.
patent: 4491940 (1985-01-01), Tinet
patent: 4856108 (1989-08-01), Tinet
patent: 5016235 (1991-05-01), Tinet
patent: 5126989 (1992-06-01), Tinet
Crovatto, "Sensing Holes and Marks", Apr. 1971, IBM Technical Disclosure, vol. 13, No. 11.
Tolansky, "Revolution in Optics", 1968.
Electronics Review, "Philips TV disk, read by light beam, could shape market", Sep. 1972.
Hrbeck, G.W. "An Experimental Optical Videodisk Playback System", Journal of the SMPTE, vol., 83, Jul. 1974, pp. 580-582.
"Thomson-CSF"
Young W. R.
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