Low bit rate transform coder, decoder, and encoder/decoder for high-quality audio
US5109417A · kind A · utility
175Cited by
5References
26Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 29, 1989 |
| Grant date | Apr 28, 1992 |
| Priority date | — |
| Expiry date | Dec 29, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L19/035
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Quantizing noise is lessened in a speech signal system by using adaptive bit allocation for subband channels, wherein subband information of digital words is represented in block-floating-point form, and normalized mantiss as may allow dropping a sign bit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.