Mobile terminal apparatus and system selecting method

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United States of America Patent

PATENT NO 7174188
SERIAL NO

11218621

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Abstract

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In a first standby state, the reception quality of a signal from a system which has established synchronization is detected. If the detected reception quality deteriorates to be less than a threshold value, the destination of synchronization establishment is changed from a first system to a second system. In a second standby state after this system change, the reception quality of a system having a higher priority order of selection than the second system which has established synchronization is detected. If a third system whose detected reception quality exceeds the threshold value is found, the destination of synchronization establishment is changed to this third system again. After that, the first standby state is returned.

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Patent Owner(s)

  • FUJITSU MOBILE COMMUNICATIONS LIMITED

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ishikura, Akira Kawasaki, JP 31 649
Kiyomoto, Moriaki Kokubunji, JP 7 78
Sakagawa, Takashi Hachioji, JP 9 188

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