Method for optimizing downstream data transfer in an asymmetric digital subscriber line modem
US6765989B1 · kind B1 · utility
4Cited by
4References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 21, 2000 |
| Grant date | Jul 20, 2004 |
| Priority date | — |
| Expiry date | Jul 4, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/66
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for optimizing downstream data transfer in a telephone from a splitterless asymmetric digital subscriber line modem. The modem examines the power spectrum of fast retrain signals both when the telephone is on-hook and off-hook. By comparing the power in the spectra, the modem may determine whether to cut back its transmitted power to lessen the noise in the downstream channel. In this manner, a customer may simultaneously use the telephone and the modem on the same telephone loop.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.