Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
2007-10-23
2007-10-23
Anderson, Matthew (Department: 2618)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C455S343200
Reexamination Certificate
active
10251828
ABSTRACT:
A portable terminal device and method thereof includes a main power supply to supply electric power to a system part of the portable terminal device, a wireless transmitting/receiving part to wirelessly transmit/receive RF signals through a network, the portable terminal device includes an indicator, an auxiliary power supply, and a micro controller determining whether a wireless connection to the network is possible by analyzing the RF signals, and controlling the indicator to indicate an analyzed result of the RF signals. A power controller controls the auxiliary power supply to supply electric power to the indicator, the micro controller, and the wireless transmitting/receiving part when the electric power is not supplied from the main power supply and the wireless connection to the network is possible.
REFERENCES:
patent: 5603095 (1997-02-01), Uola
patent: 6278864 (2001-08-01), Cummins et al.
patent: 6721580 (2004-04-01), Moon
patent: 2002/0098859 (2002-07-01), Murata
patent: 2000-31893 (2000-01-01), None
patent: 2000-322180 (2000-11-01), None
patent: 2001-51756 (2001-02-01), None
patent: 1998-19352 (1998-06-01), None
Anderson Matthew
Perez Angelica M.
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