F. Chau & Associates, LLC
Near field communication device
Disclosed is a near field communication device which includes an antenna, a transceiver that transmits and receives a wireless signal through the antenna, a first detection pulse generation circuit that transmits a first detection pulse to the transceiver periodically in a first detection interval, a second detection pulse generation circuit that transmits a second detection pulse to the transceiver in a second detection interval, a start of frame (SOF) detection circuit that detects whether an SOF is received from the transceiver, in the second detection interval, and a control block that determines that a second near field communication device is present, when the SOF detection circuit detects the SOF.
SAMSUNG ELECTRONICS CO., LTD.
H H G H H G H H
H04B H04B G06K H04W H04B G06K H04L H04W
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Hyunjae Junho Yoonjoong
Kang Kim Oh