Demodulation apparatus having reception state evaluation

Details Demodulation apparatus having reception state evaluation Demodulation apparatus having reception state evaluation

1990-11-30

1992-10-06

Grimm, Siegfried H.

Demodulators

Phase shift keying or quadrature amplitude demodulator

Input signal combined with local oscillator or carrier...

329318, 329325, 375 8, 375 13, 375 81, 375 99, H03D 106, H04L 120

Patent

active

051535270

ABSTRACT:
A signal modulated by original data is received and demodulated to output demodulated data. A number representing the correspondence of the original data with the outputted demodulated data or the lack of correspondence of the original data with the outputted demodulated data is counted. The count result representative of the suitability of the reception state of the receiver is outputted to a data processing circuit.

REFERENCES:
patent: 4247940 (1981-01-01), Mueller et al.
patent: 4631596 (1986-12-01), Yaguchi
patent: 4672631 (1987-06-01), Suzuki et al.
patent: 4847880 (1989-07-01), Kamerman et al.

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