Method and apparatus for the compression and decompression of audio files using a chaotic system
US7215776B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 20, 2000 |
| Grant date | May 8, 2007 |
| Priority date | — |
| Expiry date | Feb 23, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/30
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system for the compression and decompression of sections of audio files is provided. A library of basic waveforms is produced by applying selected digital initialization codes to a chaotic system. Each basic waveform is in one-to-one correspondence with an initialization code. A weighted sum of the selected basic waveforms is used to approximate a section of audio file. The basic waveforms are then discarded and only the weighting factors and the corresponding initialization codes are stored in a compressed audio file. When the compressed audio file is decompressed for playback, the stored initialization codes are stripped out and applied to a similar chaotic system to regenerate the basic waveforms, which are recombined according to the stored weighting factors to reproduce the original section of audio file.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.