Magnetically driven vertically correcting antenna for portable telephones
US5734716A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 29, 1995 |
| Grant date | Mar 31, 1998 |
| Priority date | — |
| Expiry date | Sep 29, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/18571
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A wireless portable phone handset for use in satellite communication systems having a vertically correcting antenna module pivotally secured to the handset for free rotation about a pivot axis. The antenna module contains a magnetic actuator mechanism for urging the module to pivot into a predetermined vertical orientation regardless of the handset orientation. An antenna projects from the module in a direction which is vertically upright when the module is in its predetermined vertical orientation. As the handset is moved into an angular orientation, the module pivots under influence of gravity, and a magnetic field from a magnetic driver, until the antenna is oriented vertically.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.