Communication system carrying out polling for request and data simultaneously and in parallel
US5166675A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 2, 1991 |
| Grant date | Nov 24, 1992 |
| Priority date | — |
| Expiry date | Jul 2, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/403
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A communication system containing a master station and a plurality of slave stations. The master station receives a request from one of the plurality of slave stations and memorizes one or more requests from one or more slave stations. The master station also sends a request sending allowance signal which addresses one of the plurality of slave stations to give an allowance to send a request for sending data, and sends a data sending allowance signal which addresses one of the plurality of slave stations to give an allowance to send data, according to a request which is memorized. Each of the slave stations detects a request sending allowance signal which addresses its own slave station, and a data sending allowance signal which addresses its own slave station. Each of the slave stations also sends a request for sending data to the master station when its own slave station detects a request sending allowance signal which addresses its own slave station. In addition, each slave station sends data to the master station when its own slave station detects a data sending allowance signal which addresses its own slave station.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.