Microfilm display apparatus

Details Microfilm display apparatus Microfilm display apparatus

1978-04-10

1981-06-02

Orsino, Jr., Joseph A.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

307259, 358181, H04N 522

Patent

active

042714303

ABSTRACT:
A microfilm display device is responsive to a film address signal and controlled by a microprocessor to locate a desired film and select a film image for display on a cathode-ray terminal. The film image is converted to a video signal for display on the terminal. The video signal is used for fine positioning of the raster on a flying spot scanner which illuminates the film.

REFERENCES:
patent: 2697746 (1954-12-01), Kennedy
patent: 3047741 (1962-07-01), Snow
patent: 3117183 (1964-01-01), Mullin
patent: 3315034 (1967-04-01), White
patent: 3539715 (1970-11-01), Lemelson
patent: 3612762 (1971-10-01), Wuellner et al.
patent: 3702898 (1972-11-01), Webb
patent: 3803350 (1974-04-01), Lemelson
patent: 4021841 (1977-05-01), Weinger
Powell, Automated Video Monitoring System, IBM Tech. Discl. Bull., vol. 18, #7, pp. 2280-2281, Dec. 1975.
Bush et al., Display of Stored Images, IBM Tech. Discl. Bull., vol. 18, #1, pp. 272-273, Jun. 1975.

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