Communication system and device for use with both a broadband distribution network and a telephone network
US6643495B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 21, 2000 |
| Grant date | Nov 4, 2003 |
| Priority date | — |
| Expiry date | Nov 24, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/5664
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a communication system a communication device (2) is present for receiving a wideband broadcast signal from a head-end. For providing a return channel to enable interactive TV services, a GSM transceiver (34) is included in the communication device.In order to be able to provide also telephone services access control means (30) are present in the communication device (2) in order to control the access to the GSM transceiver without access conflicts causing an incorrect working system. The access control means switch between the return signals transmitted by a processor (12) and the telephone signals transmitted by a telephone terminal (22).In an embodiment of the invention, the communication device (2) is integrated in a TV set (3).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.