Patent ID: 8879465

Claim:
A method for operating a multi-power signaling device, the method comprising: generating a first time interval trigger of a plurality of time interval triggers using an internal time interval coordinator, wherein each of the plurality of time interval triggers corresponds respectively to each of a plurality of transmit power levels; selecting a first power level from the plurality of transmit power levels corresponding to the first time interval trigger; inserting a first digital value corresponding to the first power level into a payload of a first transmit signal; broadcasting the first transmit signal at the first power level in response to the first time interval trigger; generating a second time interval trigger of the plurality of time interval triggers using the internal time interval coordinator; selecting a second power level from the plurality of transmit power levels corresponding to the second time interval trigger, wherein the second power level is lower than the first power level; inserting a second digital value corresponding to the second power level into a payload of a second transmit signal; and broadcasting the second transmit signal at the second power level in response to the second time interval trigger, wherein the second transmit signal is broadcast at a shorter range than the first transmit signal.