Mobile telephone system for determining a position of a mobile t

Details Mobile telephone system for determining a position of a mobile t Mobile telephone system for determining a position of a mobile t

1997-01-21

1999-07-20

Urban, Edward F.

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

455457, 342450, H04B 7005

Patent

active

059267658

ABSTRACT:
A cordless telephone is disclosed that displays the relative position of a communication partner's cordless telephone during conversation between cordless telephones and that includes a received field level detector that measures the received field level; a memory section that inputs and stores the position at which received field level is first detected and positions subsequently detected; a control section that determines the relative position of a communication partner's cordless telephone by performing a three-point measurement based on the results of detecting received field level three times and on the resulting detected positions, and a display section that displays the measurement result.

REFERENCES:
patent: 4494119 (1985-01-01), Wimbush
patent: 5218367 (1993-06-01), Sheffer et al.
patent: 5293645 (1994-03-01), Sood
patent: 5432842 (1995-07-01), Kinoshita et al.
patent: 5513246 (1996-04-01), Jonsson et al.
patent: 5564079 (1996-10-01), Olsson
patent: 5666662 (1997-09-01), Shibuya
patent: 5732354 (1998-03-01), MacDonald

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