Pulse or digital communications – Receivers – Automatic gain control
Reexamination Certificate
2007-11-27
2007-11-27
Odom, Curtis (Department: 2611)
Pulse or digital communications
Receivers
Automatic gain control
C455S127200, C455S219000, C455S232100, C455S239100, C455S240100, C455S241100, C455S245100
Reexamination Certificate
active
10687355
ABSTRACT:
Disclosed is an AGC (automatic gain control) device and method of an OFDM system with a DC offset compensation function, and a recording medium storing a program including the method. The AGC device calculates an energy of input signals with DC offsets as the summation of the square of the input signals, and calculates an energy of the DC offsets in the input signals as the summation of the square of the DC offsets. Pure signal energy without DC offsets is produced by subtracting the energy of the DC offsets from the energy of the calculated input signal. The energy and an AGC reference value are then compared, and feedback of a comparison result is performed.
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Kim Dae-Ho
Kim Jun-Woo
Lee Young-Ha
Park Youn-Ok
Yu Chang-Wahn
Blakely & Sokoloff, Taylor & Zafman
Electronics and Telecommunications Research Institute
Odom Curtis
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