Modulators – Amplitude modulator – Nonlinear device controlled by modulating signal
Patent
1977-04-22
1978-10-31
Griffin, Robert L.
Modulators
Amplitude modulator
Nonlinear device controlled by modulating signal
325330, 332 45, 323122, 329110, 333 70CR, H04B 102
Patent
active
041237129
ABSTRACT:
A symmetrical polyphase R-C network, in which each section has a resistor serially connected between its input and output and a capacitor connected between the input of one section and the output of an adjacent section, has a second resistor connected in shunt with the output of each section to decrease the passband ripple of the network with negligible effect on the stopband response.
REFERENCES:
patent: 3559042 (1971-01-01), Gingell
patent: 3618133 (1971-11-01), Gingell
"A Multi-Phase Method of SSB Generation", by Jordan, Sdelovaci Tech. (Czechoslovakia), vol. 24, No. 10, 10/1976.
Griffin Robert L.
Mowle John E.
Ng Jin F.
Northern Telecom Limited
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