Receiver of frequency-modulated signals with digital...

Details Receiver of frequency-modulated signals with digital... Receiver of frequency-modulated signals with digital...

2008-09-23

2008-09-23

Fan, Chieh M. (Department: 2611)

Pulse or digital communications

Receivers

Angle modulation

C375S355000, C375S376000

Reexamination Certificate

active

10153000

ABSTRACT:
A receiver of a frequency-modulated signal representing a digital signal includes a down conversion unit or frequency translation unit to lower the frequency of the frequency-modulated signal and a digital demodulator to regenerate the digital signal from the lowered-frequency signal. The receiver furthermore includes a counter circuit to determine the number of periods of a reference signal from the frequency translation unit during a period of the lowered-frequency signal. The digital demodulator includes a computer unit to compute the period of the lowered-frequency signal from the number of periods of the reference signal.

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French Preliminary Search Report dated Feb. 12, 2002 for French Patent Application No. 0106766.

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