Circuit for compression or expansion of an electrical signal
US4353035A · kind A · utility
58Cited by
3References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 12, 1980 |
| Grant date | Oct 5, 1982 |
| Priority date | — |
| Expiry date | May 12, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03G9/025
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
In a two-band compander pre-emphasis is carried out during compression and de-emphasis during expansion in the lower frequency range. Noise suppression is improved by this measure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.