Telecommunication equipment support of ISDN communication lines for high speed data transmission
US6519253B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 25, 1999 |
| Grant date | Feb 11, 2003 |
| Priority date | — |
| Expiry date | Feb 25, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q11/0478
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A line termination unit which supports Integrated Services Digital Network (ISDN) and high speed data (HSD) services such as asymmetric digital subscriber loop (ADSL) or XDSL services to a subcriber over a common two-wire subscriber line. The line termination unit has a line termination circuit that connects to the subscriber line and provides ISDN signals to the line. The line support circuit receives incoming ISDN and HSD signals from the line and transmits outgoing ISDN and HSD signals to the line. The received incoming analog signals are separated into first (ISDN information) signals and second (HSD information) signals. The first signals are converted into third digital signals having a format used for ISDN signals by an associated central office and transmitting the third digital signals to the central office. The second signals are converted into fourth digital signals having a format used for HSD signals by an associated central office and the fourth digital signals are transmitted to the central office.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.