Modulators – Frequency shift keying modulator or minimum shift keying...
Reexamination Certificate
2007-08-08
2009-02-24
Mis, David (Department: 2817)
Modulators
Frequency shift keying modulator or minimum shift keying...
C375S303000
Reexamination Certificate
active
07495520
ABSTRACT:
A frequency-shift modulation device includes an oscillating circuit, a phase-locked loop and a digital frequency modulation circuit. The oscillating circuit is connected to the phase-locked loop in order to produce a fixed-frequency clock signal. This clock signal is used for timing the frequency modulation circuit. A standard model crystal oscillator can be used in the oscillating circuit, given that the RF frequency of a wireless transmission signal which is produced by the modulation device is determined digitally.
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Preliminary French Search Report, FR 06 07253, dated Feb. 28, 2007.
Gardere Wynne & Sewell LLP
Mis David
STMicroelectronics S.A.
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