Contact switch, contact switch system, and interactive building block system carrying the contact switch
US10990871B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 28, 2019 |
| Grant date | Apr 27, 2021 |
| Priority date | — |
| Expiry date | Sep 13, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q9/285
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A contact switch, contact switch system, and interactive building block system carrying the contact switch based on UHF RFID technology for detecting mutual contact events are provided. The contact switch system includes a plurality of contact switches each including a chip and an antenna not connected to the chip. When the contact switch is in contact with another contact switch, the chip is connected to another antenna of the another contact switch and the antenna is connected to another chip of the another contact switch. The chip receives and converts a radio wave from the another antenna into power, and the power converts identifying information of the chip into a radio wave, which is sent to a reader. When the reader reads two encoded identifying information at the same time, whether the two contact switches are in contact with each other is determined by the contact switch system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.