Wireless communication system
US11817934B2 · kind B2 · utility
0Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2021 |
| Grant date | Nov 14, 2023 |
| Priority date | — |
| Expiry date | Nov 4, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q21/08
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A wireless communication system includes a wireless sensor provided inside a metal housing; a receiver provided outside the metal housing to receive radio waves from the wireless sensor; and a passive repeater provided between the inside and the outside of the metal housing. The passive repeater includes a receiving antenna provided inside the metal housing and a transmitting antenna provided outside the metal housing. The receiving antenna of the passive repeater and the transmitting antenna of the passive repeater are electrically connected through a hole formed in the metal housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.