Radiant energy – Ionic separation or analysis – Static field-type ion path-bending selecting means
Patent
1976-07-26
1978-05-09
Moskowitz, Nelson
Radiant energy
Ionic separation or analysis
Static field-type ion path-bending selecting means
332 751, 250230, 350DIG2, 358200, 325143, H04B 900
Patent
active
040888851
ABSTRACT:
A method and apparatus for pulse position modulating an optical signal is disclosed whereby a beam of light is swept across an aperture at a predetermined rate to define a plurality of reference-time positions for the series of pulses emerging through the aperture. The reference-time positions are thereby associated with a reference sweep-path position. The sweep-path position at which the beam crosses the aperture is varied in accordance with a modulating signal to consequently vary the time positions of the emerging pulses.
In the preferred embodiment, a pair of reflective surfaces are provided in the beam path, the first being cyclically vibrated at a predetermined rate to repeatedly deflect the beam across the aperture. The second reflective surface is movable in response to a modulating signal to alter the angle of the beam incidence on the first surface and thereby alter the time phase of the vibration cycle at which the beam transverses the aperture.
REFERENCES:
patent: 1937754 (1933-12-01), Gieskieng
patent: 1966354 (1934-07-01), Noxon
patent: 1981999 (1934-11-01), French
patent: 2246884 (1941-06-01), Johnson
patent: 2304055 (1942-12-01), Rich
patent: 3055258 (1962-09-01), Hurvitz
patent: 3329474 (1967-07-01), Harris et al.
patent: 3431504 (1969-03-01), Adler
patent: 3622791 (1971-11-01), Bernard
patent: 3903496 (1975-09-01), Stimler
Karp et al, "The Design of a Pulse Position Modulated Optical Communication System", 12/69, pp. 670-676, IEEE Trans. on Communication Technology, vol. Com. 17, #6.
GTE Laboratories Incorporated
Keay David M.
Moskowitz Nelson
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