RF receiver having timing offset recovery function

专利名称：RF receiver having timing offset recovery

function and timing offset recovery methodusing thereof

发明人：U Sang Lee,Jae Hyung Lee,Sang Ho

Lee,Kwang Mook Lee

申请号：US12137463申请日：20080611公开号：US08184742B2公开日：20120522

专利附图：

摘要：A preprocessing unit samples and digitalizes analog signal. A differential

operation unit delays digitalized signal for a predetermined period and differentiatesdelayed signals. A correlation unit correlates differentiated signal with a plurality ofpredetermined PN code sequences. A setting unit includes a shift register having aplurality of storage locations for shifting the correlation values and sequentially storingshifted correlation values at the storage locations, respectively, a detector including thedetermination slots for detecting the storage location of the maximum value, and a slotsetter for comparing the storage location of the maximum value from the detector withthe predetermined reference storage location and shifting the determination slots bythe difference therebetween. A demodulation value estimation unit estimates, as ademodulation value of the received analog signal, a symbol of a PN code sequencecorresponding to the maximum value from the shifted determination slots.

申请人：U Sang Lee,Jae Hyung Lee,Sang Ho Lee,Kwang Mook Lee

地址：Gyunggi-do KR,Gyunggi-do KR,Gyunggi-do KR,Gyunggi-do KR

国籍：KR,KR,KR,KR

代理机构：Lowe, Hauptman, Ham & Berner, LLP

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