Apparatus and method for a non-symmetrical half-duplex DSL modem
US6922415B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2000 |
| Grant date | Jul 26, 2005 |
| Priority date | — |
| Expiry date | Mar 29, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M7/006
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A non-symmetrical half-duplex data communications apparatus and method provides for transmitting and receiving non-symmetrical half-duplex signals over a communications link. The non-symmetrical half-duplex data communications apparatus includes interface circuitry that is connectable to the communications link and modulation circuitry to transmit and receive the non-symmetrical half-duplex signals over the communications link. The modulation circuitry of the non-symmetrical half-duplex data communications apparatus includes the ability to transmit data signals with a transmission time that is different than the transmission time of receive signals. The modulation circuitry of the non-symmetrical half-duplex data communications apparatus also includes the ability to transmit data signals with a transmission data rate different than the transmission data rate of receive signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.