Wireless communication module, wireless communication system, and communication method
US9727762B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 18, 2014 |
| Grant date | Aug 8, 2017 |
| Priority date | — |
| Expiry date | Oct 24, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/10366
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A wireless communication module includes an antenna on a first conductive wall among the conductive walls enclosing a closed space; a tag reader connected with the antenna to read an RFID tag in the closed space; and a reflective part having a thin film or plate shape between the first and second conductive walls facing each other. The reflective part partitions the closed space into first and second spaces. The antenna radiates a radio wave that is reflected by the reflective part to become a first reflected wave in the first space. The radio wave also transmits through the reflective part, reflected by the second conductive wall, and transmits through the reflective part to become a second reflected wave in the first space. The position of the reflective part is determined so that the first and second reflected waves are canceled by each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.