Remotely-actuated infrared-sensitive switch
US5933091A · kind A · utility
Inventor
Key dates
| Filing date | Aug 12, 1996 |
| Grant date | Aug 3, 1999 |
| Priority date | — |
| Expiry date | Aug 12, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08C2201/51
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An infrared-sensitive switching apparatus for use with typical household electic appliances, and an adaptor for supporting the switching apparatus. In one application, the apparatus is used with a lamp, and the adaptor includes a first housing member configured as a female socket for receiving and making electrical contact with a conventional light bulb base, a second housing member configured as a male lamp base which can screw into and make electrical contact with a conventional lamp socket, and a sensor assembly. The sensor assembly includes a photodiode, a power supply, an infrared amplifier, and an ASIC (Application Specific Integrated Circuit). The sensor assembly electrically couples the first and second housing members. The ASIC includes a rectifying circuit, a filter circuit, a switching circuit, and a current-limiting circuit between the filter circuit and the switching circuit. The switching circuit generates a regulated pulsed, high frequency, current at predetermined intervals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.