Compressed code generating method and compressed code...

Details Compressed code generating method and compressed code... Compressed code generating method and compressed code...

2007-04-24

2007-04-24

Dorvil, Richemond (Department: 2655)

Data processing: speech signal processing, linguistics, language

Audio signal bandwidth compression or expansion

C704S501000, C704S502000, C704S503000, C382S249000, C382S248000

Reexamination Certificate

active

09786138

ABSTRACT:
A compressed-code generating method that is used for compressing information on characters including numerical data, sound and images, and a compressed-code expanding method that is used for restoring and expanding the compressed code generated by using the compressed-code generating method to the original information. Bit strings {y}1and {y}2are obtained respectively from a bit string {y} of information to be compressed. A reversible loop that exists in chaos is operated to these obtained bit strings, thereby to execute a reversible compression/expansion of the information using the chaos.

REFERENCES:
patent: 4941193 (1990-07-01), Barnsley et al.
patent: 5065447 (1991-11-01), Barnsley et al.
patent: 10-143493 (1998-05-01), None

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