Process and system for video rate control in a multipoint video conference
US5594725A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 1995 |
| Grant date | Jan 14, 1997 |
| Priority date | — |
| Expiry date | Dec 28, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/152
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A multipoint video conference system (8) is provided that has video rate control and allows communication of audio, video and data information between end-point units (16). The multipoint video conference system comprises a multipoint control unit (10, 20) having a plurality of interface units (12, 22) located therein. Each interface unit (12, 22) is operable to communicate with other interface units (12, 22) via a backplane (14, 24) of the multipoint control unit (10, 20). A plurality of end-point units (16) are each coupled to an associated interface unit (12, 22). Each end-point unit (16) is operable to communicate and process real data information and operable to receive and resend fill data information. The multipoint control unit (10, 20) is operable, with respect to each participating end-point unit (16) in a data channel, to allow communication of real data information and, with respect to each non-participating end-point unit (16), to allow communication of an equal amount of fill data information. Each interface unit (12, 22) is operable to transmit real data information to a participating end-point unit and to transmit fill data information to a non-participating end-poi…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.