Minimal buffering method and system for optimized encoding table

Details Minimal buffering method and system for optimized encoding table Minimal buffering method and system for optimized encoding table

1998-04-08

2000-06-27

Young, Brian

Coded data generation or conversion

Digital code to digital code converters

To or from number of pulses

341 67, 341 51, H03M 740

Patent

active

060812117

ABSTRACT:
An apparatus, method and system optimizes Huffman codes within the Huffman tables without requiring buffering an entire uncompressed original image. Compression of a whole image is performed prior to storage in a buffer. Therefore, the necessary buffer size for performing computation of symbol frequencies in order to optimize Huffman codes is reduced. Default Huffman codes are used to pre-compress the image for storage in the buffer. Simultaneously, the input symbol frequency is determined to produce optimized Huffman codes. The optimized Huffman codes are used to optimally re-encode the encoded image data to reduce the space of the re-encoded data. The optimally encoded image data can then be stored and/or transmitted.

REFERENCES:
patent: 5287420 (1994-03-01), Barrett
patent: 5677689 (1997-10-01), Yovanof et al.
patent: 5835034 (1998-11-01), Seroussi et al.
patent: 5844508 (1998-12-01), Murashita et al.
patent: 5883589 (1999-03-01), Takishima et al.

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