Patent ID: 9613242
Date: 2017-04-04
CPC Classifications: B41J,G06K,H04B

Claim:
1. A method of communicating with a transponder on a carrier substrate in a printer, comprising: energizing a transceiver to a plurality of power levels to communicate with the transponder, as the transponder is moving along a media feed path and being disposed at a plurality of distances from the transceiver, wherein: when energized to each of the power levels, the transceiver is configured to generate ultra-high frequency (UHF) signals for near field effect communication with the transponder; and each of the power levels is independent of frequency of the UHF signals; determining rates of successful communication between the transceiver and the transponder for the power levels and for the distances between the transceiver and the transponder; and selecting a first power level associated with a relatively high rate of successful communication between the transceiver and the transponder for a limited range of distances between the transceiver and the transponder.