Digital data communication apparatus
US4654653A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 12, 1983 |
| Grant date | Mar 31, 1987 |
| Priority date | — |
| Expiry date | Sep 12, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/02
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An asynchronous one way digital data communication system is disclosed in which a first microcomputer produces a series of groups of pulses at a first port representative of digits in an information packet to be transmitted, the groups being separated by strobe pulses at a second port. The pulses drive switches in two current paths to control current therethrough supplied by a receiver module including a second microcomputer having a serial input port connected to an internal counter and an interrupt port. Current detectors supply pulses corresponding to currents in the paths to the serial input and interrupt ports, from which the second microcomputer reproduces the information packet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.