Method and system for low cost, power efficient, wireless transponder devices with enhanced functionality
US8390433B2 · kind B2 · utility
12Cited by
9References
67Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 9, 2010 |
| Grant date | Mar 5, 2013 |
| Priority date | — |
| Expiry date | May 11, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2209/47
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method and system for inventorying wireless transponders, specifically referred to as RFID transceiver devices. To provide higher functionality, a microcontroller is used in the RFID, along with a battery, but the clock frequency of the microcontroller is adjusted, based on external input, to minimize battery requirements. The RFID transceiver device includes at least one sensor coupled to the microcontroller. Data from the at least one sensor is stored in non-volatile memory of the microcontroller if the battery is at a predetermined low level, and is read later when the battery is at a higher level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.