System for negotiating conferencing capabilities by selecting a subset of a non-unique set of conferencing capabilities to specify a unique set of conferencing capabilities
US5859979A · kind A · utility
236Cited by
35References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 21, 1997 |
| Grant date | Jan 12, 1999 |
| Priority date | — |
| Expiry date | Oct 21, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2213/13389
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Conferencing nodes transmit messages back and forth to negotiate characteristics for their conferencing session. The messages identify different sets of conferencing capabilities supported by the conferencing nodes. A first node transmits a request to a second node, wherein the request identifies a first set of conferencing capabilities of the first node. The second node transmits a response to the first node, wherein the response identifies a second set of conferencing capabilities of the second node and the second set is a subset of the first set. The first node and second node conduct conferencing based on the second set.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.