H - Electricity – 04 – W
Patent
H - Electricity
04
W
H04W 52/00 (2009.01) H04W 88/02 (2009.01) H04W 92/08 (2009.01)
Patent
CA 2427369
Methods and apparatus for controlling power to electrical circuitry of a wireless communication device having a Subscriber Identity Module (SIM) interface are described. In one illustrative embodiment, a method includes the acts of receiving a power down signal from a user interface of the wireless communication device; powering down radio frequency (RF) transceiver circuitry of the wireless communication device in response to the power down signal; and maintaining power to a SIM interface of the wireless communication device while the RF transceiver circuitry is powered down from the power down signal. A visual display of the device is capable of displaying information (e.g. address book information) from a SIM card while the RF transceiver circuitry is powered down from the power down signal.
Deu-Ngoc Joseph T.
Weigele Ingo W.
Borden Ladner Gervais Llp
Research In Motion Limited
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