Leak-tolerant handsfree telephone

Details Leak-tolerant handsfree telephone Leak-tolerant handsfree telephone

2006-11-21

2006-11-21

Deane, Jr., William J. (Department: 2614)

Telephonic communications

Terminal

Housing or housing component

C379S420020, C455S090300

Reexamination Certificate

active

07139394

ABSTRACT:
To amplify low frequencies emitted in handsfree mode by a multifunction earpiece (earpiece, loudspeaker, buzzer) of a telephone handset, the earpiece being tolerant to leaks in a discreet mode of operation, a tube projects into a cavity in the casing of the handset, around an aperture through which the cavity communicates with the exterior of the casing. The handset thus includes a multifunction earpiece that is tolerant of leaks in a discreet mode of operation and provides good sound quality in handsfree mode.

REFERENCES:
patent: 4086445 (1978-04-01), Robinson
patent: 5109422 (1992-04-01), Furukawa
patent: 5365050 (1994-11-01), Worthington et al.
patent: 5369701 (1994-11-01), McAteer et al.
patent: 5790679 (1998-08-01), Hawker et al.
patent: 6321070 (2001-11-01), Clark et al.
patent: 0 909 077 (1999-04-01), None
patent: WOX 00/45615 (2000-08-01), None

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