Methods and apparatus for processing variable length coded data

Details Methods and apparatus for processing variable length coded data Methods and apparatus for processing variable length coded data

2008-06-10

2008-06-10

Nguyen, Linh V (Department: 2819)

Coded data generation or conversion

Digital code to digital code converters

To or from run length limited codes

C341S065000, C341S067000

Reexamination Certificate

active

07385534

ABSTRACT:
An apparatus for processing variable length coded data includes a coefficient buffer unit and several lookup tables. The coefficient buffer unit includes a coefficient memory and an index register for storing an indication of a non-zero nature of coefficients stored in the coefficient memory. Advantageously, the lookup tables may be altered to adapt the apparatus for processing variable length coded data to handle encoding or decoding video adhering to a specific standard. Furthermore, the lookup tables may be adapted to accelerate the determination of the presence of escape codes and the subsequent handling of the escape codes.

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