Telephone system having reduced sensitivity to rf...

Details Telephone system having reduced sensitivity to rf... Telephone system having reduced sensitivity to rf...

H - Electricity

04

M

H04M 1/00 (2006.01) H04B 1/10 (2006.01) H04M 3/18 (2006.01)

Patent

CA 2533530

A telephone to be connected to a wireline having reduced sensitivity to RF interference over a predetermined frequency range from an adjacent mobile wireless communications device may include a transmit amplifier, a receive amplifier, an audio input transducer connected to the transmit amplifier, and an audio output transducer connected to the receive amplifier. The telephone may further include an RF shield(s) surrounding the audio input transducer and the audio output transducer for reducing RF interference over the predetermined frequency range from the adjacent mobile wireless communications device. Moreover, the telephone may also include at least one RF audio input filter element connected to the audio input transducer and at least one RF audio output filter element connected to the audio output transducer, both of which are also for reducing RF interference over the predetermined frequency range from the adjacent mobile wireless communications device.

L'invention concerne un téléphone que l'on branche à un réseau filaire moins sensible au brouillage RF sur une gamme de fréquences prédéterminée à partir d'un dispositif de communication sans fil mobile adjacent. Le téléphone peut inclure un amplificateur d'émission, un amplificateur de réception, un transducteur d'entrée audio branché à l'amplificateur d'émission et un transducteur de sortie audio branché à l'amplificateur de réception. Le téléphone peut en outre comprendre un ou des blindages RF entourant le transducteur d'entrée audio et le transducteur de sortie audio afin de réduire le brouillage RF sur la gamme de fréquences prédéterminée à partir d'un dispositif de communications sans fil mobile adjacent. De plus, le téléphone peut comprendre au moins un élément filtrant d'entrée audio RF branché au transducteur d'entrée audio et au moins un élément filtrant de sortie audio RF branché au transducteur de sortie audio, les deux servant également à réduire le brouillage RF sur la gamme de fréquences prédéterminée à partir d'un dispositif de communications sans fil mobile adjacent.

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