Modulators – Amplitude modulator – Nonlinear device controlled by modulating signal
Patent
1985-11-14
1986-12-23
LaRoche, Eugene R.
Modulators
Amplitude modulator
Nonlinear device controlled by modulating signal
332 17, 332 31T, 358 23, H03C 136, H03C 300
Patent
active
046315020
ABSTRACT:
A transistor modulator for use in a circuit for processing video and sound signals of a video game so as to produce a composite output signal for application to the antenna input of a television receiver to produce a display of such video game. The modulator comprises an MOS transistor having a source electrode, a drain electrode and two gate electrodes. The video and sound signals and a VHF carrier signal are applied to respective ones of the two gate electrodes and either of the source and drain electrodes. The MOS transistor produces the composite output signal across an impedance which is connected to the other of the source and drain electrodes.
REFERENCES:
patent: 3772614 (1973-11-01), Kjaersgaard
patent: 4160959 (1979-07-01), Maine
Briody Thomas A.
Eason Leroy
LaRoche Eugene R.
Mis D. C.
Streeter William J.
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