Dynamic information storage or retrieval – Condition indicating – monitoring – or testing – Including radiation storage or retrieval
Patent
1985-10-02
1986-09-09
Hartary, Joseph W.
Dynamic information storage or retrieval
Condition indicating, monitoring, or testing
Including radiation storage or retrieval
350172, 350397, 346 76L, 369 58, 369111, G11B 2736, G01D 1800
Patent
active
046113185
ABSTRACT:
Apparatus and method for monitoring the optical recording of information on an information storage member using a first beam of light for writing the information and a second beam of light for reading the information. Both the writing beam and the reading beam are focused on the storage member by a single objective lens. The input information signal which is used for modulating the writing beam is also directed to a delaying circuit, and the delayed information signal is compared with the playback signal derived from the reading beam.
REFERENCES:
patent: 3154370 (1964-10-01), Johnson
patent: 3287563 (1966-11-01), Clunis
patent: 3365706 (1968-01-01), King
patent: 3387109 (1968-06-01), Bruma
patent: 3401590 (1968-09-01), Massey
patent: 3430966 (1969-03-01), Gregg
patent: 3438050 (1969-04-01), Aschenbrenner
patent: 3474457 (1969-10-01), Becker
patent: 3493754 (1970-02-01), Black
patent: 3530258 (1970-09-01), Gregg
patent: 3579145 (1971-05-01), Lange
patent: 3625617 (1971-12-01), Dichen
patent: 3651281 (1972-03-01), Becker
patent: 3651504 (1972-03-01), Goldberg
patent: 3654624 (1972-04-01), Becker
patent: 3658954 (1972-04-01), Broadbent
patent: 3662158 (1972-05-01), Wong
patent: 3687664 (1972-08-01), Broadbent
patent: 3696344 (1972-10-01), Feinleib
patent: 3715740 (1973-02-01), Schmit
patent: 3720784 (1973-03-01), Maydan
patent: 3737589 (1973-06-01), Redlich
patent: 3924062 (1975-12-01), Broadbent
patent: 3980818 (1976-09-01), Browning
King, G. W., Recording Information by Laser, Discovery, V. 27, Jan. 1966, pp. 19-22.
Carlson et al., Some Considerations in the Design of a Thermal Microimage Recorder; Wescon Technical Papers, V72, 1968.
Rice et al; An Experimental Television & Playback System Using Photographic Discs; Journal of SMPTE, V79, N11, Nov. 1970, pp. 997-1002.
Kenville, R. F., Noise in Laser Recording, IEEE Spectrum, Mar. 1971, pp. 50-57.
Maydan, D., Micromachining & Image Recording on Thin Films by Laser Beams, Bell System Tech. Journal, V. 50, N6, Jul.-Aug. 1971, pp. 1761-1789.
Broadbent, K. D., A Review of the MCA Disco-Vision System, Journal of SMPTE, V. 83, Jul. 1974, pp. 554-559.
Clark Ronald J.
Discovision Associates
Hartary Joseph W.
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