Method and apparatus for time domain compression and synthesis of audible signals
US4433434A · kind A · utility
15Cited by
5References
12Claims
0Family size
Inventor
Key dates
| Filing date | Dec 28, 1981 |
| Grant date | Feb 21, 1984 |
| Priority date | — |
| Expiry date | Dec 28, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L19/02
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Compression and synthesis techniques and related apparatus for time domain signals, particularly signals whose information content resides in the power spectrum such as speech. Compression techniques include adjusting the phase of harmonic components of a signal unit to obtain an equivalent power spectrum signal of a minimum number of discrete levels. The invention finds application in speech compression and compact speech synthesis devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.