Radio-type transmitting device, container, transmitting/receiving system and transmitting/receiving method
US7821410B2 · kind B2 · utility
15Cited by
3References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 3, 2006 |
| Grant date | Oct 26, 2010 |
| Priority date | — |
| Expiry date | Aug 25, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/6018
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A radio-type transmitting device capable of transmitting information other than information in an internal memory is provided. A RFID tag includes a encoding circuit for digitalizing receiving sensitivity of a radio wave sent from an external transmitting/receiving apparatus and then sending the digitalized receiving sensitivity to the external transmitting/receiving apparatus. Thus, the external transmitting/receiving apparatus can obtain a distance between the external transmitting/receiving apparatus and the RFID tag based on received sensitivity information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.