СПОСОБ ПРЕОБРАЗОВАНИЯ ПОТОКА БИТОВ ДАННЫХ ДВОИЧНОГО ИНФОРМАЦИОННОГО СИГНАЛА В ПОТОК БИТОВ ДАННЫХ СИГНАЛА ДВОИЧНОГО КАНАЛА ПЕРЕДАЧИ С НАЛИЧИЕМ ОГРАНИЧЕНИЙ, УСТРОЙСТВО КОДИРОВАНИЯ, СИГНАЛ, СОДЕРЖАЩИЙ В СЕБЕ ПОТОК БИТОВ ДАННЫХ СИГНАЛА ДВОИЧНОГО КАНАЛА ПЕРЕДАЧИ С НАЛИЧИЕМ ОГРАНИЧЕНИЙ, НОСИТЕЛЬ ЗАПИСИ И УСТРОЙСТВО ДЕКОДИРОВАНИЯ

申请公布号：RU2001127081(A)

申请号：RU20010127081

申请日期：2000.12.15

申请公布日期：2003.10.27

申请人：

КОНИНКЛЕЙКЕ ФИЛИПС ЭЛЕКТРОНИКС Н.В. (NL)

发明人：КУНЕ Виллем М. Й. М. (NL)

分类号：H03M7/00;G11B20/14;H03M7/14;H03M13/31

主分类号：H03M7/00

摘要：A sequence of n-bit information words is converted into a sequence of corresponding channel words, some channel words having mi-bits and other channel words having m2-bits, and the sequence of channel words is transmitted. The information words are converted into corresponding mi-bit channel words in accordance with a channel code C1, and the information words are converted into corresponding m2-bit channel words in accordance with a channel code C2 that is different than the channel code C1. The sequence of channel words complies with a runlength constraint and with a second constraint related to the parity of the m2-bit channel words. Each channel code includes a predetermined plurality of alternative channel words for use in the conversion of each information word. For channel words immediately following a previous channel word in the sequence, the selection of the channel word from the predetermined plurality of channel words depends on an end part of the immediately preceding channel word so as to comply with the runlength constraint. The predetermined plurality of m2-bit channel words includes channel words having opposite polarity, and the selection of m2-bit channel words from the predetermined plurality of m2-bit channel words also depends on the second constraint related to the parity of the m2-bit channel words.

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