Pulse or digital communications – Systems using alternating or pulsating current – Plural channels for transmission of a single pulse train
Reexamination Certificate
2011-06-28
2011-06-28
Puente, Eva Y (Department: 2611)
Pulse or digital communications
Systems using alternating or pulsating current
Plural channels for transmission of a single pulse train
C375S341000, C375S285000, C375S330000, C375S321000, C348S608000, C348S725000
Reexamination Certificate
active
07970071
ABSTRACT:
A method and a device for synchronizing the carrier frequency of a carrier signal comprising a frequency offset and/or a phase offset. According to the invention, the method estimates the frequency offset and/or phase offset of the carrier signal by means of a maximum likelihood estimation from a received signal, which comprises temporally discrete, complex rotary indices, for which only the temporally discrete phases are dependent on the frequency offset and/or phase offset. An offset quadrature-modulated received signal is thus converted into a modified received signal comprising temporally discrete, complex rotary indices, for which only the temporally discrete phases are dependent on the frequency offset and/or the phase offset.
REFERENCES:
patent: 5654667 (1997-08-01), Adachi
patent: 5706313 (1998-01-01), Blasiak et al.
patent: 5790602 (1998-08-01), Stephens
patent: 6111923 (2000-08-01), Mueller et al.
patent: 6301311 (2001-10-01), Sheba
patent: 6560303 (2003-05-01), Fan et al.
patent: 6647070 (2003-11-01), Shalvi et al.
patent: 6775334 (2004-08-01), Liu et al.
patent: 7587003 (2009-09-01), Pliquett et al.
patent: 2003/0181183 (2003-09-01), Ventura
patent: 2004/0071234 (2004-04-01), Li
patent: 2007/0263742 (2007-11-01), Schmidt
patent: 196 51 993 (1997-07-01), None
patent: 103 09 262 (2004-09-01), None
patent: 1 278 346 (2003-01-01), None
patent: 1 441 463 (2004-07-01), None
International Search Report—PCT/EP2005/010435; Date of Mailing—Jan. 20, 2006.
International Preliminary Report of Patentability (English translation)—PCT/EP2005/010435 Original German report completed: Sep. 5, 2006.
Marshall & Gerstein & Borun LLP
Puente Eva Y
Robde & Schwarz GmbH & Co. KG
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