Removable electronic device case with supplemental wireless circuitry
US9654164B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 14, 2015 |
| Grant date | May 16, 2017 |
| Priority date | — |
| Expiry date | Apr 14, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/04
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A removable case may receive an electronic device. A male connector in the case may mate with a female connector in the device. A battery in the case may supply power to the device through the male connector. The electronic device may have an antenna formed from peripheral conductive housing structures and an antenna ground. The antenna may include a slot antenna resonating element. The case may have supplemental antenna structures such as a metal patch that overlaps an end of the slot antenna resonating element to retune the slot antenna resonating element to a desired operating frequency after being detuned by dielectric loading from the case. The supplemental antenna structures may overlap antennas of other types and may include tunable circuitry that is adjusted based on information received from the electronic device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.