Battery charging system having a speaker and a mode changing swi

Details Battery charging system having a speaker and a mode changing swi Battery charging system having a speaker and a mode changing swi

1998-08-14

2000-07-18

Tso, Edward H.

Electricity: battery or capacitor charging or discharging

Cell or battery charger structure

For handheld device

320115, H01M 1046

Patent

active

060912251

ABSTRACT:
A battery charging system is disclosed. The battery charging system comprises a chargeable electric instrument receiving unit for electrically connecting with a chargeable electric instrument and receiving the same therein; an audio signal receiver for receiving an audio signal from an audio signal output unit of the chargeable electric instrument; an electrical signal output unit electrically connected with the charging circuit unit; a mode switching switch connected between the electrical signal output unit and the charging circuit unit; a charging battery receiving unit connected with the electrical signal output unit and receiving the charging battery; and a speaker for generating an audio by receiving an audio signal from the audio signal output unit.

REFERENCES:
patent: 5136229 (1992-08-01), Galvin
patent: 5191277 (1993-03-01), Ishikura et al.
patent: 5218284 (1993-06-01), Burns et al.
patent: 5371784 (1994-12-01), Yankura
patent: 5396162 (1995-03-01), Brilmyer
patent: 5834921 (1998-11-01), Mercke et al.

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