Portable terminal and portable terminal communication method

Details Portable terminal and portable terminal communication method Portable terminal and portable terminal communication method

2005-12-09

2009-02-24

Eisen, Alexander (Department: 2617)

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

C455S456100, C455S562100, C455S575500, C455S575700, C455S115300

Reexamination Certificate

active

07496371

ABSTRACT:
There are provided: a main receiving unit for receiving incoming signals from a base station via a main antenna provided in a portable terminal; sub receiving units for receiving incoming signals from the base station via a plurality of detection antennas provided in the portable terminal; a detection unit for detecting the arriving direction of base station signals in the radio wave environment of the portable terminal based on receiving level information of the main antenna, on receiving level information of the detection antennas and on directivity information of the detection antennas; and notifying units for notifying information about the arriving direction of the base station signals detected by the detection unit.

REFERENCES:
patent: 6330438 (2001-12-01), McClelland et al.
patent: 2003/0119460 (2003-06-01), Zipper
patent: 2004/0152419 (2004-08-01), Lee
patent: 2004/0235421 (2004-11-01), Matsuoka et al.
patent: 1 381 173 (2004-01-01), None
patent: 1 458 123 (2004-09-01), None
patent: 2000-134131 (2000-05-01), None
patent: 2002-135023 (2002-05-01), None
patent: 2002-290544 (2002-10-01), None
patent: 2003-264417 (2003-09-01), None
European Search Report and Search Opinion, European Patent Application No. 05111628.3, dated Jul. 23, 2007.

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