Digital communication device

Ivan Harald Holger Jørgensen (Inventor), Mohamad Essabar (Inventor)

Research output: Patent

Abstract

The invention concerns a digital communication device like a hearing aid or a headset. The hearing aid or headset has a power supply, a signal processing device, means for receiving a wireless signal and a receiver or loudspeaker, which produces an audio signal based on a modulated pulsed signal with high frequency shifting rate produced by the signal processing device. Further the receiver has a first and a second connection point for receiving the pulsed modulated signal wherein the sound producing parts of the receiver are at least partially enclosed by a metal box, whereby a third connection point is provided which is in electrical contact with the metal of the metal box and whereby this third connection point is connected to the electric circuitry of the communication device at a point having a stable and well defined electrical potential. In this way the electro-and magnetic radiation from the metal parts of the receiver is reduced.
Original languageEnglish
IPCH04M1/05
Patent numberWO2005020549
Filing date03/03/2005
CountryInternational Bureau of the World Intellectual Property Organization (WIPO)
Publication statusPublished - 2005

Bibliographical note

Also published as: EP1661373, US2006227988

Cite this

Jørgensen, I. H. H., & Essabar, M. (2005). IPC No. H04M1/05. Digital communication device. (Patent No. WO2005020549).