Frequency synthesizer, pulse train generation apparatus and...

Details Frequency synthesizer, pulse train generation apparatus and... Frequency synthesizer, pulse train generation apparatus and...

2005-09-13

2009-02-24

Torres, Juan A (Department: 2611)

Pulse or digital communications

Synchronizers

Phase displacement, slip or jitter correction

C455S165100, C455S183100, C455S260000, C455S271000

Reexamination Certificate

active

07496169

ABSTRACT:
A frequency synthesizer comprises a digital/analog converter which sequentially converts difference data of phase data indicating the phase of a reference signal to an analog value, a voltage signal generator which integrates the analog value converted by the digital/analog converter, thereby generating a voltage signal interpolating between signal levels corresponding to two time-sequential pieces of the phase data, a reference-timing-signal output section which outputs a reference timing signal indicating the specific phase of the reference signal at a timing when the signal level of the voltage signal generated by the voltage signal generator crosses a preset setting voltage, and a reset section which resets the voltage signal generated by the voltage signal generator to the setting voltage. Accordingly, the noise performance of an output signal from the frequency synthesizer is improved.

REFERENCES:
patent: 3555446 (1971-01-01), Braymer
patent: 3582810 (1971-06-01), Gillette
patent: 5276408 (1994-01-01), Norimatsu
patent: 5521556 (1996-05-01), O'Shaughnessy et al.
patent: 5914682 (1999-06-01), Noguchi
patent: 6114890 (2000-09-01), Okajima et al.
patent: 2003/0025565 (2003-02-01), Takeda et al.
patent: 2005/0094757 (2005-05-01), Meninger et al.
patent: 05-206732 (1993-08-01), None
patent: 05206732 (1993-08-01), None

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