Modulators – Frequency modulator – Including stabilization or alternatively distortion – noise...
Reexamination Certificate
2010-02-02
2011-12-27
Johnson, Ryan (Department: 2817)
Modulators
Frequency modulator
Including stabilization or alternatively distortion, noise...
C332S118000, C332S123000, C375S303000, C455S110000, C455S126000
Reexamination Certificate
active
08085107
ABSTRACT:
The invention relates to a transmission module for transmitting data in the form of useful digital signals by modulation of a carrier, determined by the useful signals, by means of frequency shift keying. The transmission module contains a PLL circuit with a voltage-controlled oscillator and a controllable frequency divider with a frequency divider control input. The transmission module is designed to induce direct frequency shift keying (DFSK) of the carrier signal by appropriate triggering of the frequency divider with at least two different frequency divider control signals, and it has a modulation data preprocessing unit, which is connected to the frequency divider control input and is designed to weight samples of the same polarity of the useful signals to be transmitted and to fine tune the frequency divider control signal with regard to the frequency deviation to be induced.
REFERENCES:
patent: 7095819 (2006-08-01), Bellaouar et al.
patent: 7138838 (2006-11-01), Shibahara et al.
patent: 7466207 (2008-12-01), Staszewski et al.
patent: 2006/0088126 (2006-04-01), Puma
patent: 2008/0095269 (2008-04-01), Frantzeskakis et al.
McMahill, D.R., Sodini, Ch.G., A 2.5-mb/s GFSK 5.0-MB/s 4-FSK Automatically Calibrated Σ-Δ Frequency Synthesizer,IEEE Journal of Solid-State Circuits, vol. 37, No. 1, pp. 18-26 (2002).
Perrott, M.H., et al., A 27-mW CMOS Fractional-N Synthesizer Using Digital Compensation for 2.5-Mb/s GFSK Modulation,IEEE Journal of Solid State Circuits, vol. 32, No. 12, pp. 2048-2060, (1997).
BIOTRONIK CRM Patent AG
DeWitt Ross & Stevens S.C.
Fieschko, Esq. Craig A.
Johnson Ryan
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