Addressable speaker system
US6329908A · kind A · utility
355Cited by
23References
48Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 23, 2000 |
| Grant date | Dec 11, 2001 |
| Priority date | — |
| Expiry date | Jun 23, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2420/07
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An addressable speaker system in which a plurality of selectively activated speakers are distributed throughout a predefined area and are connected to a central processing unit. The system contains multiple RF antennas that are capable of broadcasting and receiving radio frequency signals to individuals wearing radio frequency identification (RFID) badges. The system users the RF transmission to locate an intended radio frequency identification badge and selectively broadcasts an audio message to a speaker located closest to the intended recipient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.