Liquid metal-based information identification system
US10990864B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 6, 2018 |
| Grant date | Apr 27, 2021 |
| Priority date | — |
| Expiry date | Jul 6, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K19/0723
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A liquid metal-based information identification system includes a recognizer and a smart tag. The smart tag is configured to record environment information of an environment where an article is located through a sensor, and to send the environment information to the recognizer via a flexible circuit. The flexible circuit is internally used by the smart tag and comprises a circuit made of a liquid metal provided with a microfluidic channel including a vacuum chamber. When the liquid metal is in a phase transition, the liquid metal enters the microfluidic channel in such a manner that the circuit made of the liquid metal is short-circuited or disconnected. The recognizer is configured to receive and analyze the environment information, and to download first information of an article production link to the smart tag.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.