Provision of local oscillator signals

Details Provision of local oscillator signals Provision of local oscillator signals

2005-10-11

2005-10-11

Mis, David (Department: 2817)

Oscillators

Automatic frequency stabilization using a phase or frequency...

Plural oscillators controlled

C331S016000, C331S049000, C455S260000

Reexamination Certificate

active

06954109

ABSTRACT:
The invention relates to a phase-locked loop structure providing local oscillator signals. In order to enable an improved supply of local oscillator signals, the phase-locked loop structure comprises a first phase-locked loop including a first voltage controlled oscillator and a second phase-locked loop including a second voltage controlled oscillator. A first local oscillator output provides a first local oscillator signal, wherein a signal output by the first voltage controlled oscillator is forwarded to the first local oscillator output. A second local oscillator output provides a second local oscillator signal. A selection component forwards a signal output by the first voltage controlled oscillator or a signal output by the second voltage controlled oscillator to the second local oscillator output. The invention relates equally to a corresponding communication unit and to a corresponding method.

REFERENCES:
patent: 6356770 (2002-03-01), Ishida
patent: 0526202 (1993-02-01), None
patent: 1313220 (2003-05-01), None
patent: 1320189 (2003-06-01), None

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