RF communication device for adaptive detection of further RF communication devices
AssigneeNXP B.V.
InventorsMarcel Philipp Vorraber, Dorian Haslinger, Kyriakos Neophytou
Life of this patent
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Abstract
A first radiofrequency (RF) communication device is configured to detect whether an external device is an active RF communication device or a passive RF communication. The first device triggers transmission of a first RF signal and a second RF signal. The first device detects that the external device is an active device based on the first RF signal and/or that the external device is a passive device based on the second RF signal.
Claims21
1-15. (canceled)
A radio frequency (RF) communication device for detecting at least one further RF communication device being at least one of:
- an active further RF communication device,
- a passive further RF communication device,
- the RF communication device comprising:
- an RF transmission device, configured to transmit RF signals to be received by the at least one further RF communication device;
- and
- an adaptive detection device, coupled to the RF transmission device, and configured to:
- trigger a transmission of a first RF signal,
- trigger a transmission of a second RF signal, and
- detect the active further RF communication device based on the first RF signal or detect the passive further RF communication device based on the second RF signal;
- wherein one of the first RF signal and the second RF signal is transmitted subsequently to the other, and
- wherein a first energy level of the first RF signal is at least 25% higher than a second energy level of the second RF signal.
A method for operating a radio frequency (RF) communication system, the method comprising:
- transmitting a first RF signal;
- transmitting a second RF signal;
- and
- detecting an active further RF communication device based on the first RF signal or detecting a passive further RF communication device based on the second RF signal;
- wherein one of first RF signal and the second RF signal is transmitted subsequently to the other, and
- wherein a first energy level of the first RF signal is at least 25% higher than a second energy level of the second RF signal.
Dependencies are inferred from the claim text.