Radio data signal demodulator with clock signal recovery

Details Radio data signal demodulator with clock signal recovery Radio data signal demodulator with clock signal recovery

1994-05-16

1995-10-10

Grimm, Siegfried H.

Demodulators

Phase shift keying or quadrature amplitude demodulator

329310, 375324, 375333, 375359, 375373, H04L 2720

Patent

active

054574234

ABSTRACT:
For a demodulator for radio data signals, where transmission of these signals is carried out through phase shifting of a suppressed subcarrier, where a multiplex signal, which contains a signal with the frequency of the subcarrier passes through a band-pass filter and an amplitude limiter, the amplitude-limited signal having a subcarrier frequency is transformed into digital sampling values, if necessary by additional filtering, and the sampling values are supplied to at least one phase control loop for deriving a bit clock signal.

REFERENCES:
patent: 3949401 (1976-04-01), Hegeler et al.
patent: 5175507 (1992-12-01), Roither
patent: 5278560 (1994-01-01), Hegeler et al.

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