Patent ID: 6466781
Filing Date: 2002-10-15
Classification: H04L,H04M,H04W

Abstract:
A transceiver, comprising:means for transmitting and receiving information selected from group consisting of signaling information and user information; control means for placing the transceiver into different states including a plurality of off-states; an operating device for triggering changes between the different states; a user authentication module storing a secret number, said user authentication module embodied as an interchangeable chip card; means for performing a first user authentication which is based on an input secret number, said means for performing a first user authentication comparing the input secret number with stored secret number; means for performing a second user authentication which is based on a biometric method; and means for optionally switching the transceiver into the plurality of off-states which include: a first off-state in which essential elements of the transceiver and said user authentication module are not supplied with power, and a second off-state in which essential elements of the transceiver are not supplied with power and said user authentication module is supplied with power; successful performance of the second user authentication causes a change from the second off-state into an on-state; and successful performance of the first user authentication enables a change from the first off-state into a state selected from the group consisting of the second off-state and an on-state.