System for acknowledging a user among a plurality of users in an environment
US11166071B2 · kind B2 · utility
0Cited by
1References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 19, 2018 |
| Grant date | Nov 2, 2021 |
| Priority date | — |
| Expiry date | Feb 19, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/4532
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system (1) for acknowledging a user among a plurality of users in an environment, includes:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.