Method and apparatus for facilitating control of a movable barrier operator
US6696806B2 · kind B2 · utility
15Cited by
8References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2002 |
| Grant date | Feb 24, 2004 |
| Priority date | — |
| Expiry date | Apr 25, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H7/093
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A movable barrier operator (11) receives movement sensing signals from a sensor (13) and calculates corresponding speed of movement of a movable barrier. Such speed measurements lead to development of a median speed value over a monitoring window. The median speed value is used in a subsequent monitoring window to facilitate determining when speed of movement for the movable barrier has slowed in a way that likely corresponds to the movable barrier having encountered an obstacle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.