System for decoding the EFM and EFM-plus format in optical disc

Details System for decoding the EFM and EFM-plus format in optical disc System for decoding the EFM and EFM-plus format in optical disc

1998-01-16

2000-03-28

Tokar, Michael

Coded data generation or conversion

Digital code to digital code converters

To or from run length limited codes

341 58, H03M 500, H03M 700

Patent

active

060437642

ABSTRACT:
System for decoding code words in the EFM-PLUS and/or EFM format in which an enumeration block makes it possible to associate in a one-to-one manner with each of the code words a numerical value from a practically continuous set of numerical values. The numerical value, possibly summed with an offset value, by an address generator, addresses a read-only memory in which are stored information codes, each of which is associated, as decoded information, with one of the code words.

REFERENCES:
patent: 5661425 (1997-08-01), Minoda et al.
patent: 5748119 (1998-05-01), Ko
Ko et al, "A New Highly Efficient EFM Compatible Modulation Code for Optical Disc Storage," IEEE, 208-209, Mar. 1996.

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