Structures of data compression encoder, decoder, and record carrier
US5859602A · kind A · utility
6Cited by
9References
45Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 30, 1997 |
| Grant date | Jan 12, 1999 |
| Priority date | — |
| Expiry date | Jul 30, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M3/042
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An audio signal encoder is provided which is designed to A/D-convert an analog input signal at a first sampling frequency without being compressed and at a second sampling frequency that is two or four times higher than the first sampling frequency in data compression for minimizing data compression-caused errors in high-frequency components encoded. A decoder decoding digital signals produced by the encoder and a record carrier storing therein the digital signals are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.