Remote, wetness signaling system
US6603403B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2000 |
| Grant date | Aug 5, 2003 |
| Priority date | — |
| Expiry date | Dec 12, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K19/0716
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention can provide a monitoring method and system for signaling a predetermined status in an article (20) having a monitored portion (22). The monitoring system includes an interrogator (30) which is located in an operative proximity to the article, and is configured to provide input energy with a predetermined input frequency. A status signaling device (24) is located at the monitored portion (22) of the article. The status signaling device includes a sensor (26) which can indicate a change of state that occurs when the monitored portion (22) of the article (20) changes from a first condition to a different, second condition. A passive transponder (28) is in an operative communication with the sensor (26). In a particular aspect of the invention, the transponder can be an electronic transponder. The transponder (28) can be configured to receive the input energy from the interrogator (30), and can be configured to generate indicator data when the monitored portion (22) is in the second condition. The transponder (28) can be configured to communicate an output energy away from the article (20). The output energy can include at least a portion of the input energy, and …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.