Passive tag including volatile memory
US8102263B2 · kind B2 · utility
183Cited by
12References
6Claims
0Family size
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Key dates
| Filing date | Oct 31, 2007 |
| Grant date | Jan 24, 2012 |
| Priority date | — |
| Expiry date | Nov 23, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K19/0717
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A passive tag including a volatile memory is provided. The passive tag includes: a sensing unit which senses or measures information about environmental surroundings of the tag; a volatile memory; a non-volatile memory; and a control unit which firstly stores resultant data sensed or measured by the sensing unit in the volatile memory and then moves the data stored in the volatile memory to the non-volatile memory according to pre-set conditions. Therefore, the life of the tag is prolonged and stability of important data can be secured.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.