Method for recording (sending) /reproducing (receiving) data, ap

Details Method for recording (sending) /reproducing (receiving) data, ap Method for recording (sending) /reproducing (receiving) data, ap

1998-01-30

1999-02-09

Edun, Muhammad N.

Dynamic information storage or retrieval

Binary pulse train information signal

Binary signal gain processing

369 48, 369 58, G11B 700

Patent

active

058703667

ABSTRACT:
A C2 encoder encodes data of 24 symbols supplied from a two-symbol delaying/scrambling circuit and generates a Q parity of four symbols. Data and Q parity are supplied to a interleaving circuit. The interleaving circuit adds delays that vary for a unit delay amount D each as in 0, D, 2D, . . . , and so forth to individual symbols so as to interleave the data. In this case, since D=7, the maximum delay amount becomes 7.times.27=189. Thus, the total interleave length becomes 190. The total interleave length is slightly smaller than twice the unit of sub codes (98 frames). A C1 encoder encodes 28 symbols that have been interleaved and generates a P parity of four symbols.

REFERENCES:
patent: 5060221 (1991-10-01), Sako et al.
patent: 5216656 (1993-06-01), Sako et al.
patent: 5343452 (1994-08-01), Maeda et al.
patent: 5455814 (1995-10-01), Sako
patent: 5469416 (1995-11-01), Yamagami et al.
patent: 5694381 (1997-12-01), Sako
patent: 5757752 (1998-05-01), Sako

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