Pocket speakerphone

Details Pocket speakerphone Pocket speakerphone

2005-12-06

2005-12-06

Harold, Jefferey F. (Department: 2644)

Telephonic communications

Substation or terminal circuitry

For loudspeaking terminal

C379S387010, C379S388010

Reexamination Certificate

active

06973179

ABSTRACT:
A pocket speakerphone adapter for a landline-based common telephone to provide the common telephone with speakerphone capabilities. The conventional handset of a conventional common telephone is disconnected from the handset jack of its base unit, and the pocket speakerphone is temporarily connected in its place to the handset jack of the base unit using a conventional handset cord. The conventional common telephone base unit provides interconnection with the public switched telephone network (PSTN), while the pocket speakerphone in accordance with the principles of the present invention provides a temporary adaptation of the land line common telephone to operate as a speakerphone.

REFERENCES:
patent: 4682957 (1987-07-01), Young
patent: 4907267 (1990-03-01), Gutzmer
patent: 4912758 (1990-03-01), Arbel
patent: 4930156 (1990-05-01), Norris
patent: 5099514 (1992-03-01), Acree
patent: 5450481 (1995-09-01), Penzias
patent: 5600714 (1997-02-01), Eppler, Jr. et al.
patent: 5623544 (1997-04-01), Papadopoulos
patent: 6002945 (1999-12-01), McDuffee
patent: 6212273 (2001-04-01), Hemkumar et al.

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