Flexible tag device and flexible sensing system comprising the same
US11281874B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 11, 2020 |
| Grant date | Mar 22, 2022 |
| Priority date | — |
| Expiry date | Sep 17, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K19/07773
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A flexible sensing system includes: a flexible tag device including a first antenna, first sensor and second sensors, first modulation transistor and second modulation transistors connected to both ends of the first antenna, first ring oscillator that drives the first modulation transistor together with the first sensor, and a second ring oscillator that drives the second modulation transistor together with the second sensor; and a reader device that is flexible and includes a second antenna that is inductively coupled with the first antenna, extracts an output signal of the tag device for each frequency bandwidth, and corrects an output signal change of the tag device according to a coupling change between the first antenna and the second antenna.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.