Pulse or digital communications – Receivers – Angle modulation
Reexamination Certificate
2007-01-30
2010-02-09
Bayard, Emmanuel (Department: 2611)
Pulse or digital communications
Receivers
Angle modulation
C375S324000
Reexamination Certificate
active
07660369
ABSTRACT:
In a radio-controlled device for measuring time, a demodulating unit demodulates the time information from the received electric signal based on amplitude information of the target radio wave. The amplitude information is obtained from in-phase and quadrature-phase components of the target radio wave. A phase calculator calculates phase data associated with a phase of the target radio wave based on the in-phase and quadrature-phase components. A variability calculator calculates a variability of the phase data of the target radio wave relative to a reference phase. The reference phase changes at a constant rate in time according to a frequency error. The frequency error is contained in the reference signal relative to a frequency of the target carrier wave. A reception determining unit determines whether reception of the radio-controlled device is good based on the calculated variability.
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Office Action dated Aug. 25, 2008 in corresponding German patent application No. 10 2007 004 902.3-31 (and English translation).
Masuda Sumio
Watanabe Takamoto
Bayard Emmanuel
DENSO CORPORATION
Posz Law Group , PLC
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