Patent ID: 8830033

Claim:
A system which protects a protected device from a mobile device which emits radio frequency energy, the system comprising: a radio frequency identification tag which is affixed to a person before the person enters a predefined area with the mobile emitter device, the radio frequency identification tag configured with data which uniquely identifies a the mobile emitter device; and a radio frequency identification reader associated with a the protected device, the radio frequency identification reader being associated with first logic which measures electrical proximity, in terms of incident power by direct measurement of radio frequency energy, of the mobile emitter device relative to the protected device, the radio frequency identification reader further being associated with second logic which identifies the mobile emitter from the data with which the radio frequency identification tag is configured, and third logic which prompts the person to reduce the radio frequency energy emitted by the mobile emitter device once the mobile emitter device is measured to be within a predetermined proximity relative to the protected device; wherein the radio frequency identification reader is disposed at a fixed position which is distant from the protected device; wherein the radio frequency identification reader is position-sensitive, and including fourth logic which determines the radio frequency energy level emitted by the mobile emitter device and the relative position of the mobile emitter device with respect to the protected device from the radio frequency identification tag associated with the mobile emitter device and a radio frequency identification tag associated with the protected device.