Output switching for load levelling across multiple service areas
US5883661A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 1, 1995 |
| Grant date | Mar 16, 1999 |
| Priority date | — |
| Expiry date | Nov 1, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2007/1739
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A television information system for distributing television information services, including interactive service, to subscribers divided among a plurality of service areas. A system manager receives requests for service from subscribers and assigns each requesting subscriber to one of a plurality of video provider elements. The video provider element provides a television information service to the requesting subscriber. An rf processing unit associated with the video provider element places the television information service on a carrier frequency assigned to the subscriber by the system manager. An rf switch controlled by the system manager directs each carrier frequency to the service area of the corresponding requesting subscriber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.