Telephone handset with enhanced handset/handsfree receiving and

Details Telephone handset with enhanced handset/handsfree receiving and Telephone handset with enhanced handset/handsfree receiving and

1998-09-23

2000-11-07

Chiang, Jack

Telephonic communications

Terminal

Housing or housing component

H04M 100

Patent

active

061447382

ABSTRACT:
A handset comprising a sealed unit receiver and a loudspeaker, first apparatus for providing sound from the receiver to the ear of a user when the ear of the user is sealed to the handset, and second apparatus for providing sound from both the receiver and from the loudspeaker to the ear of the user when the ear of the user is only partly sealed to the handset.

REFERENCES:
patent: 4418248 (1983-11-01), Mathis
patent: 4907266 (1990-03-01), Chen
patent: 5333206 (1994-07-01), Koss
patent: 5642402 (1997-06-01), Vilmi et al.
patent: 5790679 (1998-08-01), Hawker et al.

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