Inductive modulator system

Details Inductive modulator system Inductive modulator system

1989-04-21

1990-02-20

LaRoche, Eugene R.

Modulators

Frequency modulator

Plural modulation

332145, 332173, H03C 100

Patent

active

049029878

ABSTRACT:
A magnetic induction modulation and frequency multiplication system includes three toroidal coils physically mounted close to one another to provide magnetic flux coupling between them. One of the coils is supplied with a relatively high frequency carrier signal which has been shaped to eliminate one or the other of the positive or negative excursions thereof. A second coil is provided with an audio signal or other suitable input signal. The third coil constitutes the output coil and is utilized to provide signals to a transmitting circuit coupled to a transmitting antenna. The output signal from the third coil constitutes an amplitude modulated and phase/frequency modulated signal directly produced through the mutual inductive coupling of the three coils.

REFERENCES:
patent: 3172061 (1965-03-01), Malinowski

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