Synchronization method between reader and tag
US8274374B2 · kind B2 · utility
4Cited by
2References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 5, 2008 |
| Grant date | Sep 25, 2012 |
| Priority date | — |
| Expiry date | May 6, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/0008
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is a synchronization method between a reader and tag according to an example embodiment, the method including: transmitting, by the reader, a first write command message to the tag at a first time; detecting, by the tag, the first write command message from the reader at a second time and transmitting a first response message to the reader in response to the first write message; transmitting, by the reader, a second write command message including first time information of the first time to the tag; and correcting, by the tag, a clock offset using a difference between the first time and the second time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.