Self powered electronic memory identification tag with dual communication ports

Claim 1

An integrated electronic memory tag comprising: a first port for connection to a source of radio frequency signals; a memory for digital signals; a radio frequency power converter for converting a portion of the radio frequency energy received in the form of radio frequency signals into DC power for driving the memory; a radio frequency signal converter for converting the radio frequency signal into a digital signal; control logic in a radio frequency interface for responding to the digital signals passing between the memory and the first port; a digital signal converter for converting a digital signal from the control logic into a radio frequency signal; a second port for connection to an electronic device; a contention arbiter for controlling which of the ports has access to the memory; a logic gate, cooperating with the contention arbiter, for alternatively connecting the first port and the second port to the memory.