Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Patent
1997-08-07
2000-06-13
Trost, William G.
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
455573, H04Q 732
Patent
active
060760001
ABSTRACT:
A mobile telephone battery charger including a power input plug assembly for connecting to a car's battery power supply outlet, a charging connector assembly connected to the power input plug assembly by a cord for connecting to the battery charging port of a mobile telephone, a speaker and a control circuit being installed in the power input plug assembly and a microphone being installed in the charging connector assembly for a hand-free communication at a distance through the mobile telephone by means of the mode selection of a switch on the power input plug assembly.
REFERENCES:
patent: 5282246 (1994-01-01), Yang
patent: 5313514 (1994-05-01), Kanasashi
patent: 5333177 (1994-07-01), Braitberg et al.
patent: 5487182 (1996-01-01), Hansson
patent: 5642402 (1997-06-01), Vilmi et al.
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