Devices, systems and methods for composite signal decoding emplo

Details Devices, systems and methods for composite signal decoding emplo Devices, systems and methods for composite signal decoding emplo

1993-09-27

1995-11-28

Brinich, Stephen

Electrical audio signal processing systems and devices

Binaural and stereophonic

Broadcast or multiplex stereo

381 5, H04N 704

Patent

active

054715342

ABSTRACT:
A device and method for composite signal decoding is provided in which an analog-to-digital converter (15) digitizes an incoming FM composite signal. The digitized signal is filtered by an interpolator (13) which uses filter coefficients developed as a function of a sampled pilot signal's phase without synchronizing the decoder sample rate to the pilot signal to reconstruct the composite signal at points Where the pilot signal phase is a multiple of 45.degree..

REFERENCES:
patent: 4027107 (1977-05-01), Eilers
patent: 5349386 (1994-09-01), Borchardt et al.
patent: 5357574 (1994-10-01), Whitecar

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