Visual communications
US11025679B2 · kind B2 · utility
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0References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2018 |
| Grant date | Jun 1, 2021 |
| Priority date | — |
| Expiry date | Aug 31, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W4/021
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A persistent virtual area that supports establishment of respective presences of communicants operating respective network nodes connected to the virtual area even after all network nodes have disconnected from the virtual area is maintained. A presence in the virtual area is established for a user of a Public Switched Telephone Network (PSTN) terminal device. Transmission of data associated with the virtual area to the PSTN terminal device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.