Pulse or digital communications – Receivers – Automatic frequency control
Reexamination Certificate
2006-11-03
2011-11-29
Deppe, Betsy (Department: 2611)
Pulse or digital communications
Receivers
Automatic frequency control
C375S260000
Reexamination Certificate
active
08068567
ABSTRACT:
A common phase value of pilot subcarriers of a received data symbol (n) is estimated and used for correcting the phase of all subcarriers of the data symbol, wherein, with a time-variant frequency of the local oscillator (VCO), the estimated noisy phase values (Ψn) are used directly for the phase and frequency correction, whereas with a time-invariant frequency after the VCO, a corrected phase value ({circumflex over (φ)}n) is determined from the estimated phase values of the current data symbol (Ψn) and earlier data symbols (Ψm) in a linear FIR filter arrangement (17-20) and is used for the phase correction.
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Deppe Betsy
Dicke Billig & Czaja, PLLC
Infineon - Technologies AG
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