Apparatus and method for calculating bit metrics in data...

Details Apparatus and method for calculating bit metrics in data... Apparatus and method for calculating bit metrics in data...

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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patent: 2004/0218519 (2004-11-01), Chiou et al.
patent: 2005/0036541 (2005-02-01), McKown

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