Mobile telephone with amplified listening

Details Mobile telephone with amplified listening Mobile telephone with amplified listening

1998-07-28

2000-11-14

Chiang, Jack

Telephonic communications

Terminal

Housing or housing component

379420, H04M 100

Patent

active

061480800

ABSTRACT:
This invention discloses a mobile telephone of the cordless or cellular type which has a front face including an earphone and a microphone, and a back face. According to the invention, the opening area of the loudspeaker is situated, through the wall of the telephone, around a circular area of 27 mm in diameter, called closing area, situated opposite the loudspeaker and sound-proof on transmission.

REFERENCES:
patent: 5790679 (1998-08-01), Hawker et al.

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