Patent ID: 6980084

Claim:
An RF transponder comprising a plurality of circuits, a power supply for providing power, including an input voltage, to the plurality of circuits, and a one of the plurality of circuits comprising a Power-On Reset circuit for generating a reset signal for maintaining other ones of the plurality of circuits in an inoperative reset mode unless the power supply has sufficient power to ensure proper operation of the other ones of the circuits, the RF transponder characterized in that: at least one of the other ones of the plurality of circuits comprises control logic which, upon release of the reset signal, starts transmission of a data stream at a first bit of the data stream, in order to ensure a first-pass transmission of a complete data stream; characterized by: an input for an external reset signal; and at least one logic element, for combining the external reset signal with the Power-On Reset-generated reset signal and forming a combined reset signal, wherein the combined reset signal is set in response to either the external reset signal or the Power-On Reset-generated reset signal being set, and the combined reset signal is cleared when the external reset signal and the Power-On Reset-generated reset signal are both clear; characterized by: a gate connected between ground and the input for the external reset signal, wherein the gate is controlled by a one of the power supply voltages so that the external reset signal is cleared when the power supply voltage is at a level suitable for logic control.