Portable telephone with attenuation for surrounding noise
AssigneeSagem SA
InventorJamal Housni
Life of this patent
Estimating the term…
Abstract
A portable telephone comprises a case fitted with an antenna and pierced with communications openings in one face associated with a speech microphone and with an earpiece. The telephone also has a directional anti-noise microphone connected to the earpiece via an active anti-noise circuit and associated with a first opening that is separate from the communications openings of the speech microphone and of the earpiece.
Claims5
A portable telephone comprising both a case fitted with an antenna and pierced by communications openings in one face associated with a speech microphone and with an earpiece, and an anti-noise microphone connected to the earpiece via an active anti-noise circuit, the anti-noise microphone being associated with at least one opening that is separate from the communications openings of the speech microphone and of the earpiece, wherein the anti-noise microphone is a directional microphone directed towards the associated opening.
Dependencies are inferred from the claim text.