Movable barrier operator having passive infrared detector
US6737968B1 · kind B1 · utility
33Cited by
9References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 7, 2000 |
| Grant date | May 18, 2004 |
| Priority date | — |
| Expiry date | Apr 7, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C2009/00928
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A wall control unit for a movable barrier operator sends baseband signals over a wire connection to a head unit of a movable barrier operator to command the movable barrier to perform barrier operator functions. The wall control unit has a wall control unit port for connection to the wire connection. A first switch sends a barrier command signal to the head unit commanding the head unit to open or close a movable barrier. A second switch commands the head unit to provide energization to a light source. An infrared detector causes a command signal to be sent to the head unit to control the illumination state of the light source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.