Pulse or digital communications – Receivers – Angle modulation
Reexamination Certificate
2007-02-20
2007-02-20
Bayard, Emmanuel (Department: 2611)
Pulse or digital communications
Receivers
Angle modulation
C375S279000
Reexamination Certificate
active
10286133
ABSTRACT:
An error correction technique for data communication receivers such as WLAN (Wireless Local Area Network) receivers is provided. The error correction technique is for correcting a frequency and/or phase error in an incoming digitally modulated signal. A constellation manipulator is provided that is adapted to manipulate the phase constellation system of the incoming digitally modulated system by mapping each constellation point of the phase constellation system to a predefined range of phase angles. The predefined range has a width of less than 2π. Further, an error detector is provided that is connected to receive data from the constellation manipulator. The data pertains to the manipulated phase constellation system. The error detector is adapted to evaluate the data to detect the frequency and/or phase error.
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Borowski Joerg
Eckhardt Uwe
Mennenga Menno
Advanced Micro Devices , Inc.
Bayard Emmanuel
Kivlin B. Noäl
Meyertons Hood Kivlin Kowert & Goetzel P.C.
Williams Lawrence B.
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