Modulators – Amplitude modulator – Nonlinear device controlled by modulating signal
Patent
1976-07-27
1977-07-19
Grimm, Siegfried H.
Modulators
Amplitude modulator
Nonlinear device controlled by modulating signal
325142, 332 11R, 332 21, 332 23R, 332 40, 343108R, G01S 116, G01S 118, H03K 708
Patent
active
040371735
ABSTRACT:
Two carriers are gated on and off in an alternating sequence. The same group of different digital sample point values signifying various modulation levels required for each carrier at successive points in time are read out in timed sequence and applied to modify each of the carrier waves by one sample point value during each period when a carrier wave is gated on to thus modify the carriers in a manner recognized by a receiver as modulation.
REFERENCES:
patent: 3487411 (1969-12-01), Toman
patent: 3808558 (1974-04-01), Toman et al.
Ailes Curtis
Grimm Siegfried H.
Tull Aviation Corporation
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