Code learning system for a movable barrier operator
US5751224A · kind A · utility
69Cited by
14References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 17, 1995 |
| Grant date | May 12, 1998 |
| Priority date | — |
| Expiry date | May 17, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C2009/00928
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A movable barrier or garage door operator has a control head controlling an electric motor connected to a movable barrier or garage door to open and close it. The control head has an RF receiver for receiving RF signals from a hand-held transmitter or a fixed keypad transmitter. The receiver operates the electric motor upon matching a received code with a stored code. The stored codes may be updated or loaded either by enabling the learn mode of the receiver from the fixed keypad transmitter or from a wired control unit positioned within the garage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.