Multipoint teleconference system employing communication channels set in ring configuration
US5365265A · kind A · utility
135Cited by
6References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 15, 1992 |
| Grant date | Nov 15, 1994 |
| Priority date | — |
| Expiry date | Jul 15, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2213/13337
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A multipoint teleconference system dispensing with an MCU, in which terminals are connected into a loop configuration through an ISDN in such a way that each terminal is coupled with each of the adjacent terminals by a single B channel. Thus, a communication frame is revolved through a looped communication channel. Each terminal renews video data which is contained in an allotted area within the received communication frame and which was transmitted by the terminal itself, and it relays the resulting communication frame to the next terminal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.