Patent · US Active

Filter coefficient control apparatus and method

US8514922B2 · kind B2 · utility

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0References

9Claims

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Assignee

FUJITSU LIMITED · JP

Inventors

Lei Li · Zhengzhou, CN
Zhenning Tao · Beijing, CN
Ling Liu · Glastonbury, US
Shoichiro Oda · Kawasaki, JP

Key dates

Filing date	Jul 13, 2010
Grant date	Aug 20, 2013
Priority date	—
Expiry date	Jul 13, 2030

Classification

Technology area (CPC H)Electricity
CPC primaryH04B10/61
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

This invention relates to an apparatus and a method for controlling a filter coefficient. The filter coefficient control apparatus controls a coefficient of a filter of a phase recovering apparatus, and comprises a phase offset obtaining means, for obtaining a phase offset between a carrier and a local oscillation; an autocorrelation calculating means, for calculating an autocorrelation and related statistics of the phase offset; and a filter coefficient determining means, for determining the coefficient of the filter in accordance with the autocorrelation and related statistics.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.