EFM/EFM+ encoder and method thereof

Details EFM/EFM+ encoder and method thereof EFM/EFM+ encoder and method thereof

2008-05-27

2008-05-27

Williams, Howard (Department: 2819)

Coded data generation or conversion

Digital code to digital code converters

To or from run length limited codes

C360S041000, C369S059230

Reexamination Certificate

active

11620764

ABSTRACT:
An EFM/EFM+ encoder and a method thereof, performing digital sum value (DSV) protection in an Eight-to-Fourteen/Eight-to-Fourteen Plus (EFM/EFM+) encoding system to generate a data frame to be recorded on a recording medium. The method comprises modulating source data to the data frame having a predetermined number of channel bits, determining merging bits and DSV based on the channel bits, and changing the predetermined number of the channel bits in the data frame based on the DSV and the merging bits. The changing the predetermined number of the channel bits comprises inserting or removing a channel bit at the end of the data frame.

REFERENCES:
patent: 5696505 (1997-12-01), Schouhamer Immink
patent: 5790056 (1998-08-01), Schouhamer Immink
patent: 5828754 (1998-10-01), Hogan
patent: 6778104 (2004-08-01), Chen et al.
patent: 7009532 (2006-03-01), Ushiyama et al.
patent: 2007/0229327 (2007-10-01), Chen et al.
patent: 04339365 (1992-11-01), None
patent: 11177430 (1999-07-01), None

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