Sensors and systems for detecting environmental conditions or changes
US8502684B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Jan 21, 2011 |
| Grant date | Aug 6, 2013 |
| Priority date | — |
| Expiry date | Jan 21, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F13/42
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Sensors and systems for detecting predetermined environmental conditions or changes may include a device capable of providing information. The device may include either a shield or reconfigurable antenna. For example, in a first condition, a shield is configured to prevent communications with the device and, in a second condition, the shield is configured to enable communications with the device. Alternately, in a first condition, a reconfigurable antenna is configured to enable communications with the device and in a second condition the reconfigurable antenna is configured to prevent communications with the device. The shield or reconfigurable antenna may be configured to transition from first conditions to second conditions upon exposure to a predetermined environmental condition or change.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.