A method for detecting a workspace and a device for this purpose

The invention relates to a method for detecting a position with respect to a defined area (4), particularly in a mobile device, comprising the steps of: - providing (S1) corresponding to a provided limiting signal, the limiting signal (BS) corresponds to a current signal in a bounding conductor (3) surrounding the defined region (4) a pseudo-random signal; - receiving (S3) a detection signal a generated by the current signal in the boundary conductors (3) magnetic field; - Generate a reconstructed boundary signal from the detection signal; - providing (S4) a reference signal (RS) having a signal to the limiting provided (BS) corresponding bit pattern; - a time correlation offset between the reference signal and the reconstructed boundary signal and a correlation value (KKF) between the reference signal (RS) and the reconstructed limiting signal (BS), which are shifted by the determined correlation offset from one another to determine, performing (S5) a correlation method, ; - determining (S7) a position inside or outside the defined area (4) depending on the determined correlation value (KKF).