Wireless communication zone management system

Details Wireless communication zone management system Wireless communication zone management system

1994-05-05

1996-12-17

Chin, Wellington

Telephonic communications

Having light wave or ultrasonic link for speech or paging...

Including fiber optic link within telephone network

379 58, 379 60, 379 61, 455 61, 455 331, 455 332, 455 551, H04M 1100, H04H 102, H04Q 700, H04B 100

Patent

active

055861679

ABSTRACT:
A wireless communication system formed of a plurality of antennae, the antennae being arranged in a grid pattern over a communication region, wireless portable terminals located within the communication region for emitting and/or receiving electromagnetic signals via the antennae, apparatus for determining the position of at least one of the terminals within the communication region relative to the grid pattern.

REFERENCES:
patent: 4476574 (1984-10-01), Struven
patent: 4790000 (1988-12-01), Kinoshita
patent: 4799062 (1989-01-01), Sanderford
patent: 4866732 (1989-09-01), Carey
patent: 4881271 (1989-11-01), Yamauchi
patent: 4941207 (1990-07-01), Maeda
patent: 4972505 (1990-11-01), Isberg
patent: 5043736 (1991-08-01), Darnell
patent: 5208756 (1993-05-01), Song
patent: 5218367 (1993-06-01), Sheffer
patent: 5221925 (1993-06-01), Cross
patent: 5295180 (1994-03-01), Vendetti
patent: 5329576 (1994-07-01), Handforth

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