Patent ID: 9723635
Date: 2017-08-01
CPC Classifications: H04B,H04W

Claim:
1. A first near field communication (NFC) circuit comprising: an antenna configured to inductively couple to signals emitted by a second NFC circuit; a charging circuit configured to output power provided by the inductive coupling through the antenna to the signals emitted by the second NFC circuit; a transceiver circuit configured to be powered by the charging circuit to transmit data for receipt by the second NFC circuit; and a transmission delay circuit configured to be powered by the charging circuit and control the transceiver circuit to delay transmission of the data until expiration of a defined delay time after the transceiver circuit has become sufficiently powered on to operate to transmit the data; wherein the transmission delay circuit is configured to set the defined delay time based on determining that signals from a third NFC circuit were received by the transceiver circuit.