Communications: electrical – Systems – Call station
Patent
1974-03-26
1976-10-19
Sloyan, Thomas J.
Communications: electrical
Systems
Call station
324 83D, 235 92PS, 340347SY, G08C 1916
Patent
active
039874222
ABSTRACT:
A system for detecting the signal quality of a phase-modulated wave, in which the phase positions of the signal elements of the digital phase-modulated wave are each detected with respect to a reference phase carrier by a phase detector for developing digital output signals composed of higher digits representing the ideal quantized phase positions of the phase-modulated wave signal elements and at least one lower digit representative of the direction of phase deviation of the signal elements from the ideal quantized phase positions so that the lower digit is taken out as signal quality information of the phase-modulated wave.
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patent: 3579104 (1971-05-01), Pignard et al.
patent: 3582780 (1971-06-01), Hole
patent: 3663956 (1972-05-01), Purdy et al.
patent: 3683345 (1972-08-01), Faulkes et al.
patent: 3686490 (1972-08-01), Goldstone
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patent: 3760270 (1973-09-01), Irvin
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patent: 3843931 (1974-10-01), Sarkilahti
patent: 3892956 (1975-07-01), Fuss
Engineering Staff of Analog Devices, "ANALOG-DIGITAL - HANDBOOK," June 1972, pp. 11-16.
Furuya Katsuhiko
Shintani Sotokichi
Yanagidaira Hidetaka
Adams Bruce L.
Burns Robert E.
Kokusai Denshin Denwa Kabushiki Kaisha
Lobato Emmanuel J.
Sloyan Thomas J.
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