Cross-talk cancellation
US9049282B1 · kind B1 · utility
8Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 15, 2014 |
| Grant date | Jun 2, 2015 |
| Priority date | — |
| Expiry date | May 15, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/6058
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Cross-talk reduction and/or cancellation systems and methods are provided herein. In exemplary embodiments, a far-end acoustic signal is delayed by M samples. Additionally, a cross-talk estimate value for the delayed far-end acoustic signal may be subtracted from an input acoustic signal. The cross-talk estimate value is a scaled version of filter outputs generated by a finite impulse response filter that utilizes predetermined filter coefficients. The filter outputs are scaled using a dynamic gain value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.