Two-point modulator arrangement

Details Two-point modulator arrangement Two-point modulator arrangement

2006-11-28

2006-11-28

Shingleton, Michael B (Department: 2817)

Modulators

Frequency modulator

Including stabilization or alternatively distortion, noise...

C332S128000, C331S016000, C331S017000, C331S023000, C331S025000, C327S105000, C455S260000, C341S143000

Reexamination Certificate

active

07142070

ABSTRACT:
A two-point modulator arrangement is specified, said arrangement being developed with respect to conventional two-point modulators to the effect that the high-pass coupling-in point of the modulator that comprises a phase locked loop is formed by an expanded loop filter. In accordance with the present principle, the expanded loop filter comprises a coupling-in element, at which the modulation signal is combined with the output signal of a phase comparator. A voltage-controlled oscillator having only one tuning input can thus advantageously be used.

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“Frequency Modulation in a Phase Lock Loop by Control of the Phase Inside the Loop”, Scott Grimmett, Frequency Synthesis Handbook, a Collection from Rfdesign, 1992, 4 pgs.
International Search Report, Int'l Application No. PCT/DE03/00602, Int'l Filing Date Feb. 25, 2003, 3 pgs.

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