Telecommunications – Receiver or analog modulated signal frequency converter – Noise or interference elimination
Reexamination Certificate
2006-08-22
2006-08-22
Maung, Nay (Department: 2618)
Telecommunications
Receiver or analog modulated signal frequency converter
Noise or interference elimination
C455S023000, C455S042000, C455S102000, C455S108000, C455S205000, C455S222000, C375S219000, C375S221000, C375S259000, C375S261000, C375S298000, C332S103000, C332S104000, C332S105000
Reexamination Certificate
active
07095996
ABSTRACT:
A transmitter and a receiver share a maximum number of transmission bits per symbol as a parameter. The transmitter modulates an encoded and interleaved transmission signal in accordance with a modulation scheme which enables the transmission of one bit or more per symbol, while the receiver demodulates a received signal based on a channel quality in accordance with a modulation scheme which has a higher modulation level as the channel quality is higher. When the number of demodulated bits per symbol is smaller than the maximum number of transmission bits per symbol, the receiver deinterleaves and decodes a received signal after the demodulation on the assumption that the received signal has likelihoods of zero as much as the number of missing bits.
REFERENCES:
patent: 5555276 (1996-09-01), Koenck et al.
patent: 2003/0074476 (2003-04-01), Kim et al.
patent: 2003/0086375 (2003-05-01), Yano et al.
patent: 2004/0228271 (2004-11-01), Marzetta
Hanaoka Seishi
Tamaki Satoshi
Yano Takashi
A. Marquez, Esq. Juan Carlos
Fischer, Esq. Stanley P.
Hitachi , Ltd.
Maung Nay
Nguyen Tuan H.
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