Code responsive radio receiver capable of operation with plural types of code transmitters
US5949349A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 19, 1997 |
| Grant date | Sep 7, 1999 |
| Priority date | — |
| Expiry date | Feb 19, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C2009/00793
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A barrier movement system which is useful in provided barrier movement in environments where a first barrier such as a community gate is commonly controlled by a plurality of different actuators (transmitters) which actuators separately control other barriers such as household garage doors. The controller of the commonly controlled gate receives and contemporaneously analyzes codes in accordance with a plurality of different code format standards and at the same time analyzes the received code to determine which format is actually being received. In an embodiment only a fixed code portion of a rolling code sequence is used for actuation at the commonly controlled barrier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.