Receiver with frequency deviation detection capability and method therefor
AssigneeSilicon Laboratories Inc.
InventorsHendricus de Ruijter, Wentao Li
Life of this patent
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Abstract
A receiver includes an analog receiver and a digital processor. The analog receiver has an input for receiving a radio frequency (RF) signal, and an output for providing a digital intermediate frequency signal. The digital processor has an input for receiving the digital intermediate frequency signal, and an output for providing digital symbols. The digital processor measures peak-to-peak frequency deviation of the digital intermediate frequency signal, and performs a digital signal processing function on the digital intermediate frequency signal to provide the digital symbols based on the peak-to-peak frequency deviation so measured.
Claims20
A receiver comprising:
- an analog receiver having an input for receiving a radio frequency (RF) signal, and an output for providing a digital intermediate frequency signal;
- and
- a digital processor having an input for receiving said digital intermediate frequency signal, and an output for providing digital symbols, wherein said digital processor measures a peak-to-peak frequency deviation of said digital intermediate frequency signal, and performs a digital signal processing function on said digital intermediate frequency signal to provide said digital symbols based on said peak-to-peak frequency deviation so measured.
A method comprising:
- receiving an input signal;
- converting said input signal into a demodulated frequency signal, wherein a magnitude of said demodulated frequency signal represents a frequency of said input signal;
- measuring a peak-to-peak frequency deviation in said demodulated frequency signal during a time window;
- and
- performing a digital signal processing function on said demodulated frequency signal to provide digital symbols based on said peak-to-peak frequency deviation so measured.
Dependencies are inferred from the claim text.