Method for communicating a value over a transmission medium and for decoding same
US5617506A · kind A · utility
38Cited by
1References
18Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 29, 1994 |
| Grant date | Apr 1, 1997 |
| Priority date | — |
| Expiry date | Jun 29, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B20/00007
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for a 2:1 compression of a digital audio signal including 1) a compression operation for compressing a sixteen bit sample of the audio signal as both an exact value and a delta value, and 2) a regeneration operation for regenerating the compressed exact and delta values once again into a sixteen bit word. The regenerated exact and delta values are then compared against the original sample. Whichever regenerated value most closely matches the original sample has its corresponding compressed value encoded onto a storage medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.