Device and method for hum signal compensation in analog telephony signals
US9510093B2 · kind B2 · utility
0Cited by
3References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 12, 2015 |
| Grant date | Nov 29, 2016 |
| Priority date | — |
| Expiry date | Mar 12, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B15/005
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A device comprises an interface for transferring an analog telephony signal. Further, the device comprises a compensation circuit which detects a hum signal in the analog telephony signal, generates a compensation signal opposite in phase with the hum signal, and combines the compensation signal with the analog telephony signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.