METHOD AND DEVICE FOR PRODUCING A USER RECOGNITION SIGNAL

摘要

The invention relates to a device and a method to produce a user recognition signal upon an actuation by at least one user (3, 4) of many users (3, 4) in a vehicle by way of a control unit (10) and transmitting means and receiving means that are linked to the control unit (10) and are disposed relative to one another such that a user-specific high frequency transmission path (12, 12') therebetween is set up upon actuation by the at least one user (3, 4) through the user's body, comprising the steps: Providing at least one HF signal using the transmitting means, receiving the HF signal transferred through the body of the at least one user (3, 4) by way of the receiving means, evaluating the HF transfer in order to determine the user-specific transmission path (12, 12') and thereby to identify the at least one user (3, 4), and producing a user recognition signal that identifies the at least one of the users (3, 4), wherein by way of at least one detection unit (13, 13", 13", 13'") an action of one of the users (3, 4) is detected or a presence of the action is monitored, and in the detection of the action an action signal is produced, and the transmitting means is controlled by way of an activation unit (14) such that the transmitting means only provides the at least one HF transmission signal after or upon the existence of an action signal.