Universal ultra-precision PSK modulator with time multiplexed mo

Details Universal ultra-precision PSK modulator with time multiplexed mo Universal ultra-precision PSK modulator with time multiplexed mo

1984-06-22

1985-12-31

LaRoche, Eugene R.

Modulators

Amplitude modulator

Nonlinear device controlled by modulating signal

332 16R, 332 21, 332 23R, 375 52, 375 67, H03K 0700, H03C 0300, H04L 2720

Patent

active

045624151

ABSTRACT:
An apparatus and method is disclosed which provides PSK modulation utilizing a single balance mixer. This apparatus allows the selection of any type of PSK modulation for each burst of data transmitted through the apparatus. This apparatus further provides a signal having little or no amplitude modulation and reduces the spectrum occupancy to reduce cross channel interference.

REFERENCES:
patent: 3619501 (1970-06-01), Nussbaumer
patent: 3699479 (1972-10-01), Thompson et al.
patent: 3781706 (1973-12-01), Osborne et al.
patent: 4174505 (1979-11-01), Querry
patent: 4206423 (1980-06-01), Nossen
patent: 4206424 (1980-06-01), Nossen
patent: 4216542 (1980-08-01), Hermesmeyer
patent: 4471328 (1984-09-01), Chapman

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