Mobile radio communication apparatus
First Claim
1. A mobile radio communication device for transmitting/receiving data to/from an external radio communication apparatus located in an area that allows radio communication, the mobile radio communication device including:
- a radio-signal transmitting/receiving unit for performing radio communication with the external radio communication apparatus;
a connection unit detachably connected to an IC card that receives power supply from the mobile radio communication device, that manages data transmitted/received to/from the external radio communication apparatus, and that manages a communication mode state of the mobile radio communication device;
radio-signal strength determining means for determining whether or not a strength of radio signals received from the external radio communication apparatus is less than or equal to a preset threshold value; and
IC-card-mode initializing means for resetting a mode of the IC card to an initial state when the radio-signal strength determining means determines that the strength of the received radio signals is less than or equal to the threshold value.
1 Assignment
0 Petitions
Accused Products
Abstract
A mobile radio communication device can automatically initialize the mode of a SAM card (or the SAM function area of an IC card) after executing radio communication with an external radio communication apparatus. The mobile radio communication device transmits/receives data to/from an external radio communication apparatus located in an area that allows radio communication. In the mobile radio communication device, an IC card that receives power supply from a mobile radio communication device main-unit, that manages data transmitted/received to/from the external radio communication apparatus, and that manages a communication mode state of the mobile radio communication device is detachably connected to the mobile radio communication device main-unit. The mobile radio communication device further includes radio-signal strength determining means for determining whether or not a strength of radio signals received from the external radio communication apparatus is less than or equal to a preset threshold value, and IC-card-mode initializing means for resetting a mode of the IC card to an initial state when the radio-signal strength determining means determines that the strength of the radio signals is less than or equal to the threshold value.
39 Citations
19 Claims
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1. A mobile radio communication device for transmitting/receiving data to/from an external radio communication apparatus located in an area that allows radio communication, the mobile radio communication device including:
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a radio-signal transmitting/receiving unit for performing radio communication with the external radio communication apparatus;
a connection unit detachably connected to an IC card that receives power supply from the mobile radio communication device, that manages data transmitted/received to/from the external radio communication apparatus, and that manages a communication mode state of the mobile radio communication device;
radio-signal strength determining means for determining whether or not a strength of radio signals received from the external radio communication apparatus is less than or equal to a preset threshold value; and
IC-card-mode initializing means for resetting a mode of the IC card to an initial state when the radio-signal strength determining means determines that the strength of the received radio signals is less than or equal to the threshold value. - View Dependent Claims (4, 5, 6, 7)
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2. A mobile radio communication device for transmitting/receiving data to/from an external radio communication apparatus located in an area that allows radio communication, the mobile radio communication device including:
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a radio-signal transmitting/receiving unit for performing radio communication with the external radio communication apparatus;
a connection unit detachably connected to an IC card that receives power supply from the mobile radio communication device, that manages data transmitted/received to/from the external radio communication apparatus, and that manages a communication mode state of the mobile radio communication device;
radio-signal strength determining means for determining whether or not a strength of radio signals received from the external radio communication apparatus is less than or equal to a preset threshold value; and
clock-signal controlling means for stopping supply of a clock signal to the IC card when the radio-signal strength determining means determines that the strength of the received radio signals is less than or equal to the threshold value, wherein the IC card comprises mode initializing means for putting a mode of the IC card into an initial state when the supply of the clock signal is stopped. - View Dependent Claims (12, 14, 16, 18)
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3. A mobile radio communication device for transmitting/receiving data to/from an external radio communication apparatus located in an area that allows radio communication, the mobile radio communication device including:
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a radio-signal transmitting/receiving unit for performing radio communication with the external radio communication apparatus;
a connection unit detachably connected to an IC card that receives power supply from the mobile radio communication device, that manages data transmitted/received to/from the external radio communication apparatus, and that manages a communication mode state of the mobile radio communication device;
radio-signal strength determining means for determining whether or not a strength of radio signals received from the external radio communication apparatus is less than or equal to a preset threshold value; and
reset-signal generating means for transmitting a reset signal to the IC card when the radio-signal strength determining means determines that the strength of the received radio signals is less than or equal to the threshold value, wherein the IC card includes mode initializing means for resetting a mode of the IC card to an initial state upon receiving the reset signal. - View Dependent Claims (13, 15, 17, 19)
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8. A mobile radio communication device for transmitting/receiving data to/from an external radio communication apparatus located in an area that allows radio communication, the mobile radio communication device comprising:
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a radio-signal transmitting/receiving unit for performing radio communication with the external radio communication apparatus;
a connection unit detachably connected to an IC card that receives power supply from the mobile radio communication device, that manages data transmitted/received to/from the external radio communication apparatus, and that manages a communication mode state of the mobile radio communication device;
radio-signal strength determining means for determining whether or not a strength of radio signals received from the external radio communication apparatus is less than or equal to a preset threshold value;
power-supply stop instructing means for giving an instruction for stopping power supply to the IC card when the radio-signal strength determining means determines that the strength of the received radio signals is less than or equal to the threshold value; and
power-supply stopping means for stopping the power supply from a power source to the IC card in accordance with the instruction given from the power-supply stop instructing means. - View Dependent Claims (9, 10, 11)
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Specification