A New 8-16 Channel Coding for High Density Recording

We propose new channel coding for high-density recording, which is intended for use in high-capacity tape storage and optical disk systems. The new 8-16 channel coding improves recording density, facilitates clock recovery, and improves equalization quality. The codes and coding techniques enable ef...

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Bibliographic Details
Published inThe Journal of The Institute of Image Information and Television Engineers Vol. 52; no. 10; pp. 1494 - 1500
Main Authors Majima, Keigo, Ogawa, Shouichiro, Uehara, Toshihiro, Numazawa, Junji, Ohshima, Hideo
Format Journal Article
LanguageJapanese
Published The Institute of Image Information and Television Engineers 20.10.1998
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Summary:We propose new channel coding for high-density recording, which is intended for use in high-capacity tape storage and optical disk systems. The new 8-16 channel coding improves recording density, facilitates clock recovery, and improves equalization quality. The codes and coding techniques enable effective control of the running digital sum (RDS) for suppression of low-frequency content, while strictly adhering to the (d, k) constraint. The new 8-16 channel coding is the first code which achieves (d, k) = (3, 10) (in NRZ notation) among the rate 1/2 codes which suppress low-frequency content. Computer simulations have demonstrated that the channel coding suppresses the low-frequency content of the encoded sequences equivalently to a DC-free Eight-to-Fourteen Modulation (EFM), producing a 6% higher information density.
ISSN:1342-6907
1881-6908
DOI:10.3169/itej.52.1494