Communication apparatus

Details Communication apparatus Communication apparatus

2011-07-19

2011-07-19

Lee, John (Department: 2618)

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

C455S418000, C455S041200, C455S435100

Reexamination Certificate

active

07983714

ABSTRACT:
A communication device communicates with another communication device via an information managing device. The communication device includes a transmitter unit, a storage unit, and a control unit. The transmitter unit transmits presence information to the other communication device via the information managing device. The storage unit stores a program. If the communication device executes the program, the control unit judges whether the presence information currently registered needs to be changed based on executing the program. If the control unit judges that the presence information currently registered needs to be changed, the control unit changes the presence information based on executing the program. The control unit controls the transmitter unit to transmit the changed presence information as updated presence information to the other communication device via the information managing device.

REFERENCES:
patent: 7634299 (2009-12-01), Mise et al.
patent: 2004/0087373 (2004-05-01), Choi
patent: 2004/0153673 (2004-08-01), Kitano
patent: 2001-244928 (2001-09-01), None

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