Patent ID: 9213872
Filing Date: 2015-12-15
Classification: G06K

Abstract:
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.