"Electric circuit control system using exclusive ""or"" gate"
US4011482A · kind A · utility
16Cited by
4References
15Claims
0Family size
Inventor
Key dates
| Filing date | Aug 28, 1975 |
| Grant date | Mar 8, 1977 |
| Priority date | — |
| Expiry date | Aug 28, 1995 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B39/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A circuit is disclosed which is suitable for controlling lighting in a building from a multiple number of points. AC current to light bulbs is controlled by a triac which in turn is controlled by the output of a series of exclusive OR gates. The output of each exclusive OR gate is connected to one input of an adjacent exclusive OR gate except that the output of the last exclusive OR gate of the series is connected to control the input to the triac. Switches connecting to the remaining inputs of each of the exclusive OR gates each can independently determine energization or de-energization of the light bulbs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.