Splitterless multicarrier modem
US8400940B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 12, 2011 |
| Grant date | Mar 19, 2013 |
| Priority date | — |
| Expiry date | Sep 12, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M11/062
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A modem for use in Digital Subscriber Line communications transmits and receives data over the local subscriber loop in common with voice information over the loop, while avoiding the need for voice/data splitters. The modem responds to disruptions associated with “disturbance events” such as on-hook to off-hook transitions and the like by rapidly switching between pre-stored channel parameter control sets defining communications over the loop under varying conditions. In addition to changing parameter control sets responsive to a disturbance event, the modem may also change transmission power levels and other system parameters such as frequency domain equalizer characteristics. Further, provisions are made for reduced bandwidth communications under selected conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.