Transmit/receive switch for 10BASE-T home network
US6393050B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 30, 1998 |
| Grant date | May 21, 2002 |
| Priority date | — |
| Expiry date | Oct 30, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L5/16
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An apparatus and method is disclosed for providing 10BASE-T Ethernet compatible data communications between multiple network elements, such as computers, computer peripherals, computerized appliances, and the like, over a two wire residential phone line. Each network element may include a 10BASE-T compatible network interface card (NIC) for interfacing between the network element and the residential phone line through the device of the present invention. A transmit/receive switch, set to a default receive position, is coupled between the two wire residential phone line and a NIC, each NIC having a transmit and receive wire pair. The NIC senses receive energy originating from the residential phone lines. When receive energy is no longer sensed at the NIC, a transmit signal may be generated by the NIC, placed on the transmit wire pair. A carrier sensor having a control logic unit changes the transmit/receive switch to transmit position when the transmit signal is detected, coupling transmit data through the switch to the residential phone line. The carrier sensor/control logic unit returns the transmit/receive switch to the receive position to resume carrier sensing in accord with CS…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.