Crosstalk cancellation systems and methods
US8737188B1 · kind B1 · utility
7Cited by
14References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 30, 2012 |
| Grant date | May 27, 2014 |
| Priority date | — |
| Expiry date | Oct 30, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/6058
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Crosstalk reduction and/or cancellation systems and methods are provided herein. In exemplary embodiments, a far-end acoustic signal may be delayed by M samples. Additionally, a crosstalk estimate value for the delayed far-end acoustic signal may be subtracted from an input acoustic signal. The crosstalk 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.