Photodetector used to control near field communication
US8232882B2 · kind B2 · utility
3Cited by
0References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 1, 2009 |
| Grant date | Jul 31, 2012 |
| Priority date | — |
| Expiry date | Dec 10, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/10207
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A communication apparatus includes: an antenna; a first communication means that performs near field communication with a non-contact card via the antenna; a photodetecting means that is provided near the antenna and detects an amount of incoming light; and a near field communication control means that activates the first communication means when the amount of incoming light becomes less than a predetermined threshold value, the communication apparatus being driven by a battery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.