Frequency correction
AssigneeNEC Corporation
InventorYasushi Maruta
Life of this patent
Estimating the term…
Abstract
A frequency correction circuit that gives plural frequency offsets to a received radio signal in order to correct a frequency error of the radio signal, demodulates the radio signal, combines an arbitrary number of demodulation signals as combined demodulation signals from among plural demodulation signals, and selects one demodulation signal or combined demodulation signal from among the demodulation signals and the combined demodulation signals.
Claims5
A frequency correction circuit that gives plural frequency offsets to a received radio signal in order to correct a frequency error of the radio signal, demodulates the radio signal, and selects one demodulation signal from among demodulated plural demodulation signals, wherein
- the frequency correction circuit combines an arbitrary number of demodulation signals as combined demodulation signals from among the plural demodulation signals and selects one demodulation signal or combined demodulation signal from among the demodulation signals and the combined demodulation signals.
A method of correcting a frequency error of a received radio signal, comprising:
- a step of determining plural frequency offsets given to the radio signal;
- a step of giving the determined frequency offsets to the radio signal;
- a step of demodulating the radio signal to which the frequency offsets are given;
- a step of combining an arbitrary number of demodulation signals as combined demodulation signals from among demodulated demodulation signals;
- and
- a step of selecting one demodulation signal or combined demodulation signal from among the demodulation signals and the combined demodulation signals.
Dependencies are inferred from the claim text.