Remote conference system using multicast transmission for performing echo cancellation
US6320958A · kind A · utility
5Cited by
5References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 13, 1997 |
| Grant date | Nov 20, 2001 |
| Priority date | — |
| Expiry date | Nov 13, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M7/006
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In a remote conference system based on a client server model, each of conference terminals comprises a terminal packet memory for storing a voice data of the conference terminal. When a synthesized voice data is multicasted to the conference terminals, each of the conference terminals searches own voice data included in the synthesized voice data from the terminal packet memory. An echo canceler in each of the conference terminals cancels own voice data from the synthesized voice data, thereby performing an echo canceling processing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.