Patent ID: 7373657

Claim:
In a system comprising at least one stationary transmitter and a wireless proximity detector in communication with and connected physically to a mobile computational device, a method comprising: while the stationary transmitter is not physically connected from the mobile computational device, granting a user access, by the wireless proximity detector, to the mobile computational device's local software and/or data, when the wireless proximity detector determines that the detector and mobile computational device are within a selected range of the stationary transmitter; and while the stationary transmitter is disconnected physically from the computational device, prohibiting user access, by the wireless proximity detector, to of the mobile computational device's local software and/or data, when the wireless proximity detector determines that the detector and mobile computational device are not within the selected range of the stationary transmitter, wherein, in the absence of a range determination by the detector, the ability of the mobile computational device to provide the user access to the local software and/or data is prohibited and is independent of the distance between the mobile computational device and the stationary transmitter.