PAM-4 transmitter precoder for 1+0.5D PR channels

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United States of America Patent

PATENT NO 10720994
APP PUB NO 20190173586A1
SERIAL NO

16272497

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A system and method for a high-speed transmitter comprising a precoder configured to receive a sequence of input symbols and to generate for each received symbol a respective recoded symbol is disclosed. The transmitter includes a recoding unit configured for recoding each current received PAM-M based on the recoded symbol immediately preceding the current recoded symbol at the recoding unit, a shift unit configured for determining a shift value for each current received symbol from the recoding unit based on the symbol received from the recoding unit and immediately preceding the current symbol at the shift unit; and Feed-Forward Equalizer unit for applying the shift values to the respective symbols received from the recoding unit to generate a corresponding sequence of output symbols to be transmitted in an output stream.

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Patent Owner(s)

Patent OwnerAddress
INTERNATIONAL BUSINESS MACHINES CORPORATIONNEW ORCHARD ROAD ARMONK NY 10504

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Özkaya, Ilter Adliswil, CH 6 10
Cevrero, Alessandro Oberrieden, CH 10 25
Francese, Pier Andrea Adliswil, CH 38 131
Kossel, Marcel A Reichenburg, CH 64 380
Menolfi, Christian I Langnau am Albis, CH 19 241
Toifl, Thomas H Gattikon, CH 53 509

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