Oscillator device for frequency modulation

Oscillator device for frequency modulation

The present invention pertains to an oscillator arrangement for carrying out a frequency modulation process, wherein an oscillator ( 1 ) with automatic amplitude control ( 5, 6, 7 ) is provided. The shift keying is not realized with reconnectable capacitances in the oscillator ( 1 ) that determine i...

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1. Verfasser: HOFER GUNTER
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Sprache:eng
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AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATIONOF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
BASIC ELECTRONIC CIRCUITRY
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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creator HOFER GUNTER
description The present invention pertains to an oscillator arrangement for carrying out a frequency modulation process, wherein an oscillator ( 1 ) with automatic amplitude control ( 5, 6, 7 ) is provided. The shift keying is not realized with reconnectable capacitances in the oscillator ( 1 ) that determine its oscillator frequency, but rather by suitably influencing ( 6 ) the feed current of the oscillator in dependence on the modulation signal (FSK), namely with the aid of the amplitude control ( 5, 6, 7 ). Undesirable charge injections do not occur in the proposed oscillator arrangement because reconnectable capacitances are no longer required for achieving the desired frequency deviation.
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subjects AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATIONOF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
BASIC ELECTRONIC CIRCUITRY
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
title Oscillator device for frequency modulation
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