Remote infrared transceiver and method of using same
US5027433A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 27, 1989 |
| Grant date | Jun 25, 1991 |
| Priority date | — |
| Expiry date | Oct 27, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03C3/222
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The optical transceiver includes a headset antenna assembly, which is adapted to be worn on the head of the user, and which is connected electrically by a cable to a transceiver unit adapted to be worn on the belt of the user. The headset antenna assembly includes a set of alternating light emitting diodes and photosensitive diodes which are disposed on the antenna assembly to transmit and receive optical signals about a substantially 360 degree radial axis. The light emitting diodes are inclined upwardly from a horizontal plane to help avoid obstructions. Baffles are disposed between the diodes to reduce feedback interface, and a circuit in the transceiver unit discriminates against background light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.