Pulse or digital communications – Systems using alternating or pulsating current – Plural channels for transmission of a single pulse train
Reexamination Certificate
2004-05-14
2010-02-23
Fan, Chieh M (Department: 2611)
Pulse or digital communications
Systems using alternating or pulsating current
Plural channels for transmission of a single pulse train
C375S344000, C375S326000, C375S229000, C370S210000, C370S480000, C329S304000
Reexamination Certificate
active
07668246
ABSTRACT:
An apparatus, method and computer program for correcting a common phase error (CPE) of symbols of a received OFDM signal is described, in which FFT processing may be performed on a time domain OFDM to transform the received signal to a signal in the frequency-domain. Reordered output values resulting from the FFT processing and locations of the reordered output values may be stored. One or more of the stored reordered output values for a current symbol of the OFDM signal may be transferred based on receipt of an address, and each of the transferred reordered output values may be multiplied by a corresponding reordered output value of a previous OFDM signal symbol, so as to determine phase differences between the reordered output values of the current and previous OFDM signal symbols. The CPE of the transformed OFDM signal may be corrected based on the detected phase differences.
REFERENCES:
patent: 6130922 (2000-10-01), Stott et al.
patent: 6240146 (2001-05-01), Stott et al.
patent: 6363084 (2002-03-01), Dejonghe
patent: 6470030 (2002-10-01), Park et al.
patent: 6628730 (2003-09-01), Stott et al.
patent: 6720824 (2004-04-01), Hyakudai et al.
patent: 2002/0097813 (2002-07-01), Vaidyanathan
patent: 2003/0128660 (2003-07-01), Ito et al.
patent: 2003/0185147 (2003-10-01), Taga et al.
patent: 1346186 (2002-04-01), None
patent: 0 876 025 (1998-11-01), None
patent: 1195961 (A2) (2002-04-01), None
patent: 10313283 (1997-05-01), None
Foreign Search Report issued Feb. 17, 2005.
“Common phase error correction with feedback for OFDM in wireless communication”; Abhayawardhana, V.S., Wassell, I,J; Dept. of Eng., Cambridge Univ., UK; Global Telecommunications Conference, 2002. GLOBECOM '02. IEEE; Publication Date Nov. 17-21, 2002; vol. 1; pp. 651-655.
British search report dated Jan. 30, 2007 in reference to Publication GB0622188.1.
Office Action for corresponding Chinese application No. 200410849325 dated Jan. 16, 2009.
Office Action corresponding to Chinese Patent Application No. 2004100849325 dated Jul. 3, 2009 w/English Translation.
Masaki Sato
Zhidkov Sergei
Fan Chieh M
Harness & Dickey & Pierce P.L.C.
Puente Eva Y
Samsung Electronics Co,. Ltd.
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