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Title:
通信システム切換方法および携帯通信端末
Document Type and Number:
Japanese Patent JP4374571
Kind Code:
B2
Abstract:

To reduce the power consumption of a mobile communication terminal capable of utilizing a plurality of communication systems.

A mobile communication terminal (100) is provided with: a plurality of radio communication parts (10 and 20); and a communication control part (40) for selectively activating the radio communication parts. The communication control part has; a detection means (41) for detecting communication systems available in a present location; a switching means (42) which activates a radio communication part corresponding to an available communication system and executes a first operation mode of activating another radio communication part, in response to detecting unavailability of the communication system by the detection means; a monitor means (43) which monitors a frequency in switching of activation of radio communication parts for a prescribed period in the first operation mode; and a mode confirmation means (44) which asks a user whether a second operation mode of switching activation by user operation should be switched to or not in response to detecting it by the monitor means that the frequency in switching of activation exceeds a prescribed frequency.

COPYRIGHT: (C)2005,JPO&NCIPI


Inventors:
Osamu Sato
Application Number:
JP2004030850A
Publication Date:
December 02, 2009
Filing Date:
February 06, 2004
Export Citation:
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Assignee:
NEC
International Classes:
H04M1/73; H04W88/06
Domestic Patent References:
JP6260990A
JP2002359875A
JP2003143660A
JP2001054168A
Attorney, Agent or Firm:
Jyohei Yamashita
Michio Nagai