Simultaneous two-way communication system using a single communication port
US6107838A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 1, 1995 |
| Grant date | Aug 22, 2000 |
| Priority date | — |
| Expiry date | Feb 1, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/4072
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A circuit is provided for transmitting and receiving digital signals at a single circuit point simultaneously without significant interference with the output signal. The circuit monitors current flow at the common pin and converts the current flow to a voltage potential between circuit points as a function of the status of the output and input signals at the pin. In other words, the voltage potential between the preselected circuit points defines the status of the input based on the status of the output. Therefore, regardless of the status of the output from a first device, the status of the input at the common pin can be determined by monitoring the voltage potential between the two circuit points.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.