Speaker phone module connectable to either a cellular telephone

Details Speaker phone module connectable to either a cellular telephone Speaker phone module connectable to either a cellular telephone

1997-01-15

2000-03-07

Bost, Dwayne D.

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

455575, 455 90, 455573, H04Q 720

Patent

active

060352213

ABSTRACT:
A speaker phone module is disclosed. The module includes a housing defining a cradle for removably receiving a cellular telephone battery charger. The housing further encloses speaker phone circuitry for interconnecting a cellular telephone within the battery charger to a microphone and speaker within the housing. A connector within the cradle provides means for electrically connecting the speaker phone circuitry to the battery charger.

REFERENCES:
patent: 4661992 (1987-04-01), Garay et al.
patent: 5333176 (1994-07-01), Burke et al.
patent: 5457814 (1995-10-01), Myrskog et al.
patent: 5754962 (1998-05-01), Griffin
patent: 5790960 (1998-08-01), Miyashita
patent: 5802167 (1998-09-01), Hong
patent: 5809432 (1998-09-01), Yamashitia
patent: 5828966 (1998-10-01), Davis et al.

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