Pulse or digital communications – Systems using alternating or pulsating current – Plural channels for transmission of a single pulse train
Reexamination Certificate
2008-05-20
2008-05-20
Payne, David C. (Department: 2611)
Pulse or digital communications
Systems using alternating or pulsating current
Plural channels for transmission of a single pulse train
C375S260000, C375S262000
Reexamination Certificate
active
07376196
ABSTRACT:
In a receiving apparatus in a multicarrier communication system for transmitting data independently via a plurality of subchannels, (1) a soft-decision target value lnD0is calculated, this being the difference between the probability that data received from a subchannel of interest is one of two values and the probability that the data is the other of the two values; (2) a non-linear operation is performed using degrees of coupling α1, α2with other subchannels and soft-decision target values lnD1, lnD2that have entered from receivers on the other channels, and the soft-decision target value lnD0on the subchannel of interest is adjusted subchannel by subchannel based upon results of the non-linear operation; and (3) a decision is rendered on receive data based upon the soft-decision target value that has been adjusted.
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International Search Report dated Nov. 4, 2003.
Lozhkin Alexander N.
Tanaka Yoshinori
Fujitsu Limited
Katten Muchin & Rosenman LLP
Payne David C.
Wong Linda
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