Devices, Systems and Methods for Sensing and Tracing Proximity Contacts
Systems and methods for sensing and tracing proximity contacts use a magnetic field detection or coupling technology where the detection range between proximate devices may be accurately determined. The detection range may be accurately determined, for example, by generating and detecting a defined...
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Zusammenfassung: | Systems and methods for sensing and tracing proximity contacts use a magnetic field detection or coupling technology where the detection range between proximate devices may be accurately determined. The detection range may be accurately determined, for example, by generating and detecting a defined magnetic field range and/or by measurement of the received magnetic field strength and direction within an undefined magnetic field range. Proximity sensing devices perform a proximity magnetic field detection when located within a defined, generated magnetic field during a proximity contact interaction with another device that is generating a magnetic field. The magnetic fields generated and detected are generated to behave as quasistatic fields, in contrast to radios that generate and detect radiated, dynamic, electro-magnetic fields. |
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