Synchronous detection method and device

Details Synchronous detection method and device Synchronous detection method and device

2004-08-26

2009-06-09

Ahn, Sam K (Department: 2611)

Pulse or digital communications

Receivers

Angle modulation

Reexamination Certificate

active

07545887

ABSTRACT:
In a synchronous detection method, an input signal is averaged over at least first and second phase ranges of a target carrier wave within each period thereof to obtain at least first and second moving average values of the input signal within the at least first and second phase ranges, respectively. The first phase range corresponds to a positively oscillating phase range of the target carrier wave, and the second phase range corresponds to a negatively oscillating phase range thereof. A difference between the first and second moving averages is calculated as a detection result of the target carrier wave.

REFERENCES:
patent: 5049830 (1991-09-01), Yoshida
patent: 5638406 (1997-06-01), Sogabe
patent: 2003/0039325 (2003-02-01), Watanabe et al.
patent: 2005/0085249 (2005-04-01), Goldstein et al.
patent: 5-199205 (1993-08-01), None
patent: 6-269060 (1994-09-01), None
patent: 2003-65768 (2003-03-01), None

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