Excavating
Patent
1990-12-05
1993-06-22
Beausoliel, Jr., Robert W.
Excavating
371 381, 371 391, G06F 1110
Patent
active
052220869
ABSTRACT:
A method for linking data for recording on a recordable type of optical disk with data encoded according to a specific encoding using a CIRC type error correction system. The pieces of data are organized in frames, in blocks of p frames and in groups of n blocks. The frames of data and frames of sub-codes are synchronized by using pieces of information pre-recorded on the disk. During encoding, each group of n blocks receives and is preceded by three redundant blocks, namely a run-in block (RIN) itself preceded by a first dummy block (DMI) and second dummy block (DM2); and is follwed by two redundant blocks, namely a run-out block (ROUT) which is followed by a third dummy block (DM3). During writing on the disk, the length of the three redundant blocks is sufficient. They effectively set-up the record and reading of the data and its interleaving and error correction code. The disclosed method can be applied particularly to recordable optical compact disks.
REFERENCES:
patent: 4598403 (1986-07-01), Odaka
patent: 4796110 (1989-01-01), Glass et al.
patent: 4964128 (1990-10-01), Sako et al.
patent: 5077736 (1991-12-01), Dunphy, Jr. et al.
Beausoliel, Jr. Robert W.
Chung Phung My
Laboratoire Europeen de Recherches Electroniques Avancees Societ
Plottel Roland
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