Sensor tag multiplane imaging system
US8511568B2 · kind B2 · utility
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13References
11Claims
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Key dates
| Filing date | Nov 21, 2007 |
| Grant date | Aug 20, 2013 |
| Priority date | — |
| Expiry date | Jul 31, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q11/08
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
When a conventional sensor or tag is sandwiched by a plurality of metal planes, the condition is deteriorated and the sensitivity is lowered. Provided is multiplane imaging system using MISEMAS (Multi-Image Effect and Separation Method for Magnetic Sensor and Tag) in which the sensitivity is not lowered, but rather enhanced, and it is possible to separate and select each of the tags without causing interference with adjacent sensor coils SC1, SC2, SC3, SC4 or tags R1, R2, R3, R4, thereby enabling an effective use of a current on the metal surface and a magnetic path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.