Powerless electronic notepad and powerless wireless transmission system using the same
US8344999B2 · kind B2 · utility
2Cited by
4References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 22, 2009 |
| Grant date | Jan 1, 2013 |
| Priority date | — |
| Expiry date | Mar 19, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2209/88
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a powerless electronic notepad and a powerless wireless transmission system using the same, and more particularly, to a powerless electronic notepad that stores data recorded on an electronic notepad using piezoelectric elements and transmits the stored data using a passive RFID tag without the use of a power source, and a powerless wireless transmission system using the same.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.