Multiple code formats in a single garage door opener including at least one fixed code format and at least one rolling code format
US6025785A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 1996 |
| Grant date | Feb 15, 2000 |
| Priority date | — |
| Expiry date | Apr 24, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C2009/00849
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A barrier movement actuating receiver learns and responds to fixed code type access codes and rolling code type access code wherein the actuating receiver includes a programmer for programming the actuating receiver to accept fixed or rolling type access codes and includes a learning mode for enabling the programmer to add valid access codes to a memory. The receiver further includes a controller for identifying the type of access code received and a revised access code routine for learning both fixed codes and rolling codes. The controller can be set to execute the access code routine corresponding to the type of access code identified. After the first code is learned, all subsequent codes learned must be of the same type until the programmer is re-enabled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.