Modulated audio annunciator providing stand-alone high voltage compatibility
US9443412B2 · kind B2 · utility
0Cited by
5References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 15, 2013 |
| Grant date | Sep 13, 2016 |
| Priority date | — |
| Expiry date | Sep 28, 2033 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06F2105/60
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An integrated line voltage converter and microprocessor-controlled tone generator allow advanced alarm features to be implemented in standard appliances as powered by a high-voltage line power. An integrated switch may also be used to allow the addition of alarm features to standard appliances as a drop-in replacement for door switches.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.