Backward compression system and method

Details Backward compression system and method Backward compression system and method

2011-06-07

2011-06-07

Young, Brian (Department: 2819)

Coded data generation or conversion

Digital code to digital code converters

To or from differential codes

C341S050000

Reexamination Certificate

active

07956775

ABSTRACT:
A backward compression system and a backward compression method are provided. By using the system and the method, under limited memory space, a relationship between input data and previous data is identified in real time, the input data or previous data is encoded according to the relationship, and the order of data output is such that the encoded data is output first and the complete data is output second. When the output data is stored in circular memory and the memory gets full, the oldest encoded data is overwritten first, and the complete data is not overwritten until all the related encoded data is overwritten. Therefore, more original data can be preserved after decompression. Thus, system signals can be compressed and utilization of limited memory space can be improved.

REFERENCES:
patent: 6195024 (2001-02-01), Fallon
patent: 6281816 (2001-08-01), Kampf
Fu-Ching Yang et al, A Realtime Backward on-chip bus Trace Compression Algorithm for Efficient Circular Buffer Utilization, Department of Computer Science and Engineering, National Sun Yat-sen University, (2009).

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