Modulators – Amplitude modulator – Nonlinear device controlled by modulating signal
Patent
1978-04-27
1979-12-25
Grimm, Siegfried H.
Modulators
Amplitude modulator
Nonlinear device controlled by modulating signal
325 49, 325138, 325141, 332 31T, 332 44, 332 48, H03C 152
Patent
active
041807855
ABSTRACT:
A modulator suitable for amplitude modulation includes first and second converters for converting the positive and negative excursions of first and second input signals into four respective signals of one polarity which are passed through a multiplying device and a difference producer to generate an output signal containing only the product terms of the first and second input signals.
REFERENCES:
patent: 3852688 (1974-12-01), Takeda
Briody Thomas A.
Goodman Edward W.
Grimm Siegfried H.
Streeter William J.
U.S. Philips Corporation
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