Switcher for flexibly interconnecting communication ports
US5933449A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 17, 1997 |
| Grant date | Aug 3, 1999 |
| Priority date | — |
| Expiry date | Oct 17, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/38
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A transceiver includes a first receiver having an input connected to a first I/O port of the transceiver and an output connected to an output port of the transceiver and a second receiver having an input connected to a second I/O port of the transceiver and an output connected to the output port of the transceiver. A first driver has an input connected to an input port of the transceiver and an output connected to the first I/O port, and a second driver has an input connected to the input port of the transceiver and an output connected to the second I/O port. The transceiver has a first state in which the first receiver and second driver are enabled and propagate signals from the first I/O port to the output port and from the input port to the second I/O port and the second receiver is disabled and presents a high impedance to the output port, and a second state in which the second receiver and first driver are enabled and propagate signals from the second I/O port to the output port and from the input port to the first I/O port and the first receiver is disabled and presents a high impedance to the output port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.