Data conversion method and apparatus
US5821882A · kind A · utility
5Cited by
4References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 28, 1996 |
| Grant date | Oct 13, 1998 |
| Priority date | — |
| Expiry date | Aug 28, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T9/007
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
According to a data conversion method and apparatus, an original signal is wavelet-transformed with a desired expansion count to generate transformed data. The transformed data is corrected such that a difference between the original signal and a value obtained by inversely wavelet-transforming the transformed data falls within a desired tolerance range, thereby generating the corrected transformed data as compressed data in which the original signal is compressed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.