Method and apparatus for discrimination of RFID tags

摘要

In one or more embodiments described herein, there is provided an apparatus that is configured to determine respective signal strengths of radio frequency identification signalling received from multiple sources by a directional antenna. The apparatus is also configured to discriminate the radio frequency identification signalling from a particular source based on the particular signal strength of the radio frequency identification signalling received from that source.

主权项

1. An apparatus comprising:
a directional antenna configured to receive high frequency radio frequency identification signalling from multiple sources when the directional antenna is oriented in the direction of a particular source of the multiple sources and operating in both a directional antenna mode and a monopulse antenna mode, the multiple sources each configured to provide their respective high frequency radio frequency identification signalling at a frequency of at least 60 GHz and at different times; a determination circuit configured to determine respective signal strengths of the high frequency radio frequency identification signalling received from the multiple sources by the directional antenna; and a discrimination circuit configured to discriminate the high frequency radio frequency identification signalling from the particular source based on a greatest difference in signal strength between the directional and monopulse antenna modes for that particular source as a result of the orientation of the directional antenna.