Method for locking to the user's card in a portable radio telephone
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 19, 1989
Grant Date -
N/A
app pub date -
Jul 19, 1988
filing date -
Jul 29, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention relates to a method for the use of a portable radio telephone, which has a processor (4) controlling and supervising the operation, a keyboard (7) and a display (6), and a card reader (3), in which case, when the radio telephone is being used, the user identification data required by the radio telephone system are read from the card (1). The identification data (21) of the card (1) of the user authorized to use the radio telephone concerned are recorded in the non-erasable memory (5) of the processor (4), whereupon the radio telephone shifts into a mode locked to this card in such a way that its use is possible with only a certain card (1). By means of this method, protection is achieved against unauthorized use of the radio telephone.
First Claim
Family
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Cited Art Landscape
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