Signal transmission between networked computers
US6003092A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 9, 1997 |
| Grant date | Dec 14, 1999 |
| Priority date | — |
| Expiry date | Oct 9, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/70
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In a computer network of a base station and one or more remote units, data transmission from the base station to the or each remote unit is by way of a wireless (e.g. infrared) signal, and by way of a radio signal in the other direction. Infra-red receivers can be used in the remote units which are cheap and have low power consumption compared with radio receivers, and radio transmitters can be used in the remote units which have low power consumption compared with infra-red transmitters. This therefore facilitates the provision of cheap, battery-powered remote units. The wireless signal is used to send instructions to control selection by each remote unit of a transmission channel for its radio signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.