Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
2008-10-31
2011-10-11
Chang, Kent (Department: 2617)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C320S116000, C320S134000, C320S136000, C320S153000
Reexamination Certificate
active
08036717
ABSTRACT:
Disclosed is a mobile terminal incorporating a battery pack utilized as power supply. The mobile terminal includes a positive terminal connected to a battery pack positive electrode, a negative terminal connected to a battery pack negative electrode, a data communication terminal communicating with a circuit in the battery pack, a charge control unit controlling charging of the battery pack via the positive terminal, and a reference voltage output unit outputting reference voltage. The terminal further includes a dividing resistor and a thermistor connected in series between the reference voltage output unit and the negative terminal, a temperature detector detecting temperature, and stopping charging of the battery pack based on the detected temperature, and a switching device controlling the voltage at the predetermined portion. The terminal still further includes a control unit communicating with the circuit in the battery pack via the data communication terminal, and changing the voltage at the predetermined portion when notified abnormality from the battery pack.
REFERENCES:
patent: 5582928 (1996-12-01), Farley
patent: 5870025 (1999-02-01), Hinohara
patent: 6577883 (2003-06-01), Ueda
patent: 2003/0098679 (2003-05-01), Odaohhara
patent: 2005/0112416 (2005-05-01), Sakakibara
patent: 2006-155922 (2006-06-01), None
Iijima Hirotsugu
Ikeuchi Akira
Itagaki Takatoshi
Kasai Kenichi
Majima Yoshihide
Chang Kent
Mitsumi Electric Co. Ltd.
Nguyen Dinh
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Sony Ericsson Mobile Communications Japan, Inc
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