Monitor/control communication net with intelligent peripherals
US4796025A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 4, 1985 |
| Grant date | Jan 3, 1989 |
| Priority date | — |
| Expiry date | Jun 4, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q9/14
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A monitor/control communication net with intelligent peripherals, that is, peripherals which are capable of monitoring and/or controlling various devices in accordance with messages received from a central panel cpu and which are also capable of reporting to the central panel the status of one or more devices monitored by the peripheral. Each peripheral is assigned a unique address by which it is polled by the central panel. All communication messages between the central panel and peripherals include a format code which indicates the nature of the message and the length of any data field in the message. Communication time is minimized by permitting the data field to vary in length from one peripheral to another, depending on the number and type of devices being monitored and/or controlled by the peripherals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.