Digital carrier-recovery scheme for FM stereo detection

Details Digital carrier-recovery scheme for FM stereo detection Digital carrier-recovery scheme for FM stereo detection

2010-10-29

2011-11-22

Jackson, Blane J (Department: 2618)

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency or phase modulation

C455S337000, C381S002000

Reexamination Certificate

active

08064858

ABSTRACT:
Systems and techniques for processing signals include, in at least one aspect, a method including: receiving an input signal having an associated carrier frequency; multiplying the input signal to produce a multiplied signal; filtering the multiplied signal to produce a high frequency component of the multiplied signal; delaying the multiplied signal to produce a delayed signal; and combining the high frequency component of the multiplied signal with the delayed signal to produce a scaling factor for use in detecting at least one of multiple signal bitstreams associated with the input signal.

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Recommendation ITU-R BS. 450-3, “Transmission Standards for FM Sound Broadcasting at VHF”, (1982-1995-2001), The ITU Radiocommunication Assembly.

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