Portable communications transmitter
US5493704A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 1993 |
| Grant date | Feb 20, 1996 |
| Priority date | — |
| Expiry date | Dec 16, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q1/245
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Protection means (6, 18) are associated with the radiating system (16) of a transmitter constituting a radiotelephone (4). The purpose of the protection means is to reduce the amount of radiation that is intercepted, i.e. the proportion of the emitted radiation (20) that is intercepted by the body of the user (2), so as to enable the overall power of the radiation to be increased. In accordance with the invention, said protection means include a casing (18) ensuring that safe distances (33, 34, 35) are maintained between the radiating system and the body of the user. The protection means further include a screen (6) that absorbs the radiation. The invention applies in particular to long-range radiotelephones.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.