Pre-installed appliance with warning system and methods of operation
US7190266B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 12, 2004 |
| Grant date | Mar 13, 2007 |
| Priority date | — |
| Expiry date | Feb 10, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/285
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A limited-use appliance, such as a garage door operator or a home network bridge device, is disclosed which has at least one input device for generating an input signal and a controller associated with the input device and receiving the input signal. The controller initiates at least one limited-use function of the appliance upon receipt of the input signal. A test device is maintained by the controller, and has a predetermined criteria which determines whether the input signal should be sent on to the controller or not. A warning system may be incorporated so that imminent expiration of the limited-use functions initiate warnings for the benefit of the end-user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.