Patent ID: 8207826
Filing Date: 2012-06-26
Classification: G06K

Abstract:
1. A radio frequency identification (RFID) reader, comprising: a transmitter for transmitting a carrier signal to an RFID device at a relatively high carrier frequency range of 900 MHz or above; a receiver for receiving electromagnetic signals present in an environment in which the reader is operating, including a return signal from an RFID device being read by the RFID reader; and a processor operative to collect signal data providing information relating to the signals received by the receiver, the processor being operative to identify signal data representing the return signal from the RFID device and process the data to identify the RFID device, the processor being further operative to collect signal data representing the return signal and other signal data providing information relating to additional signals and electromagnetic phenomena present in the environment experienced by the reader, the data being collected including data relating to signals and electromagnetic phenomena interfering with the carrier signal and data relating to signals and electromagnetic phenomena interfering with the return signal, the processor being further operative to perform both baseband and spectrum analysis on the collected signal data in order to show characteristics of signals present in the environment experienced by the reader and tending to interfere with reading of RFID devices by the RFID reader.