Control system for illumination lamp installed in building equipped with door operation control apparatus
US4549092A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 5, 1982 |
| Grant date | Oct 22, 1985 |
| Priority date | — |
| Expiry date | Mar 5, 2002 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05Y2900/106
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A control system for an illumination lamp installed in a building equipped with a door operation control apparatus. The system comprises a door opening and closing instructor, a control circuit responsive to an instruction signal from the instructor to produce a door control signal and a lamp control signal, a door driver responsive to the door control signal to drive the opening and closing of a door, an illumination lamp for illumination of the interior of the building, a detector for detecting the movement of a human body and producing an electric signal representative of the movement, and a circuit which is responsive to the lamp control signal and the electric signal to turn on the illumination lamp and keeps the illumination lamp turned on for a predetermined time extending from the termination of the lamp control signal and the electric signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.