Pulse or digital communications – Systems using alternating or pulsating current – Plural channels for transmission of a single pulse train
Reexamination Certificate
2007-09-11
2007-09-11
Fan, Chieh M. (Department: 2611)
Pulse or digital communications
Systems using alternating or pulsating current
Plural channels for transmission of a single pulse train
C375S262000, C375S341000, C375S232000
Reexamination Certificate
active
10653279
ABSTRACT:
An apparatus and method for calculating bit metrics in data receivers. The apparatus of the invention includes a storage unit and a calculator. The storage unit is configured to store a number of modulation-dependent coefficients; it selects as output one of the coefficients in accordance with a modulation mode being used. The calculator receives the selected coefficient from the storage unit and takes a received signal and a channel response in the frequency domain. According to the selected coefficient, the received signal and the channel response, the calculator generates at least N number of bit metrics for an N-bit codeword in the received signal.
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Chao Chi-Chao
Chiu Mao-Ching
Fan Chieh M.
Mediatek Inc.
Pathak Sudhanshu C.
Thomas Kayden Horstemeyer & Risley
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