Battery charging device for a mobile apparatus using an...

Details Battery charging device for a mobile apparatus using an... Battery charging device for a mobile apparatus using an...

2004-08-06

2009-02-17

Lee, John J (Department: 2618)

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

C455S572000, C455S343100, C455S550100

Reexamination Certificate

active

07493148

ABSTRACT:
A battery charging device using an ear-microphone jack of a mobile apparatus. The battery charging device comprises a battery; an ear-microphone socket having a microphone contact, an earphone contact, and a common ground contact; a modem chip having a microphone input port connected to the microphone contact or an internal microphone and an earphone output port connected to the earphone contact or an internal speaker; and a cutting-off element connected between a power supply contact and the battery, for providing a charging voltage provided via the power supply contact to the battery and preventing a current from flowing backward from the battery to the modem chip. A power supply device comprises a plug having terminals connectable to contacts of the ear-microphone socket; and a power source connector for connecting a power supply source to the plug.

REFERENCES:
patent: 6329787 (2001-12-01), Ito et al.
patent: 6429622 (2002-08-01), Svensson
patent: 6580929 (2003-06-01), Chiu
patent: 7023180 (2006-04-01), Nagai et al.
patent: 2001/0011884 (2001-08-01), Sakakibara
patent: 2002/0130634 (2002-09-01), Ziemkowski et al.
patent: 2004/0185917 (2004-09-01), Fischedick et al.

Affiliated with

Also associated with

Rating

Battery charging device for a mobile apparatus using an... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Battery charging device for a mobile apparatus using an..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Battery charging device for a mobile apparatus using an... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4104400