METHOD OF ALLOWING ACCESS TO AN ELECTRONIC DEVICE

A method allows access to an electronic device disposed in a working space by a user having a remote device is disclosed. An access point transmits an initial signal instructing the remote device to respond after a delay period, which responds upon the expiration of the delay period. A distance of the remote device is determined based upon a period interval from the transmission of the initial signal to the detection of a response signal and the known positions of the access point and the electronic device. Alternatively, a fixed device transmits locating signals detected by three access points, which measure a time differential. The position of the remote device is determined based upon a time of arrival, the location of each of the access points, and the time differential. The electronic device is enabled when the remote device is within the predetermined distance range.