Method and apparatus for generating run-length limited code

Details Method and apparatus for generating run-length limited code Method and apparatus for generating run-length limited code

1995-07-31

1998-09-22

Gaffin, Jeffrey A.

Coded data generation or conversion

Digital code to digital code converters

To or from run length limited codes

341 61, 341 67, H03M 700

Patent

active

058120734

ABSTRACT:
A method and an apparatus are provided for generating an (4,20) RLL modulation code having a decreased detectible window width and an increased recording density ratio. The code's spectrum is concentrated in the low-frequency band, thereby improving the signal-to-noise ratio. In addition, the hardware of an encoder and a decoder can be easily implemented since the modulation code has a fixed codeword length.

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patent: 5635933 (1997-06-01), Fitzpatrick et al.
patent: 5682155 (1997-10-01), McLaughlin

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