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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Bibliographische Detailangaben
1. Verfasser:	HOFER GUNTER
Format:	Patent
Sprache:	eng
Schlagworte:	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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Beschreibung
Zusammenfassung:	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.