Portable telephone use limiting system and portable telephone

Details Portable telephone use limiting system and portable telephone Portable telephone use limiting system and portable telephone

1997-05-05

2000-04-18

Chin, Welling

Telecommunications

Radiotelephone system

Security or fraud prevention

455457, 455566, 455 261, 455528, H04B 106

Patent

active

060525770

ABSTRACT:
A mobile station use limiting system includes a base station provided in a cell and connected to a public telephone network, a use limiting station provided in the cell, for transmitting a use limitation signal. A mobile station can perform communication with the base station via an electromagnetic wave. The communication with the base station is limited in the mobile station in response to the use limitation signal.

REFERENCES:
patent: 5535431 (1996-07-01), Grube et al.
patent: 5802445 (1998-09-01), Wiedeman et al.
patent: 5819171 (1998-10-01), Hoogerwerf et al.
patent: 5832386 (1998-11-01), Nojima et al.
patent: 5835857 (1998-11-01), Otten

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