Appliance control
US4200862A · kind A · utility
198Cited by
4References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 28, 1977 |
| Grant date | Apr 29, 1980 |
| Priority date | — |
| Expiry date | Dec 28, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY04S40/121
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An applicance control system comprises a data transmitter and plurality of slave units plugged into outlet sockets of a power main of a building, appliances being coupled to the slave units. The transmitter housing includes a data input arrangement by which slave unit addresses and operation signal can be input and means for producing therefrom digital address and operation signals injected onto the main for receipt by the slave units. Each slave unit is enabled by a digital signal complying its address to effect an appliance operation as defined by a received digital operation signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.