FSK receiver
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United States of America Patent
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Aug 20, 2002
Grant Date -
N/A
app pub date -
Dec 8, 1998
filing date -
Feb 21, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A signal processing apparatus (1) comprises an analogue RF receiver (2) which has a local oscillator (7). The analogue receiver (2) receives in use a first electrical signal from antenna (4) at a carrier frequency, which signal is modulated by a digitised modulating signal to provide a second electrical signal having an amplitude representing an instantaneous logic level of the digitised modulating signal. The apparatus further comprises a digital processor (13) for processing the second electrical signal and providing an output signal in response thereto. The digital processor is controlled in use by clock signals provided in response to actuation of a local oscillator of the analogue receiver.
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