Sensing system
US10162989B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 29, 2018 |
| Grant date | Dec 25, 2018 |
| Priority date | — |
| Expiry date | Jun 29, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2209/88
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A sensing system includes an electronic tag and a reading device that transmits and receives information to and from the electronic tag. The reading device includes a transmission unit that sends an alternating-current radio wave including a high-frequency component and a low-frequency component. The electronic tag does not include a power supply and includes a receiving unit that obtains a power supply voltage from the high-frequency component of the alternating-current radio wave and obtains a clock signal from the low-frequency component and a return unit that maintains a maximum amplitude of the clock signal and sends a combination of information and the clock signal as a return signal. The reading device further includes a processing unit that decodes the return signal sent from the electronic tag on the basis of the clock signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.