Radio communication apparatus and frequency offset...

Details Radio communication apparatus and frequency offset... Radio communication apparatus and frequency offset...

2009-03-24

2011-11-15

Nguyen, Long (Department: 2816)

Telecommunications

Receiver or analog modulated signal frequency converter

With particular receiver circuit

C455S205000, C455S214000, C375S334000, C375S337000

Reexamination Certificate

active

08060051

ABSTRACT:
In a radio communication apparatus, a frequency offset calculator of the radio communication apparatus calculates a frequency offset of the received radio signal from the reception frequency of the radio communication apparatus. An averaging unit averages the frequency offset calculated by the frequency offset calculator. A moving speed calculator calculates the moving speed of an associated radio communication apparatus with which the radio communication apparatus is communicating, based on the frequency offset calculated by the frequency offset calculator. An averaging time changer changes an averaging time for which the frequency offset is averaged by the averaging unit, in accordance with the moving speed of the associated radio communication apparatus calculated by the moving speed calculator.

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European Search Report dated Aug. 18, 2010 from corresponding European Application No. EP 09 15 7020.

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