Electric device and method of normality determination for communication function in such an electric device
US7990260B2 · kind B2 · utility
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4Claims
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Key dates
| Filing date | Mar 19, 2007 |
| Grant date | Aug 2, 2011 |
| Priority date | — |
| Expiry date | Jan 15, 2028 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24F11/54
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A normality determination unit determines that a communication function for an outdoor unit of its own is normal when receiving a signal from one of indoor units, and writes a normality flag into an EEPROM. Further, the normality determination unit determines that it is not asserted that the communication function for the outdoor unit of its own is normal when not receiving a signal from any of the indoor units for a predetermined time period, and deletes the normality flag in the EEPROM.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.