NEAR-FIELD COMMUNICATION (NFC) SYSTEM PROVIDING LOW POWER PEER-TO-PEER RECOGNITION MODE AND RELATED METHODS

摘要

A near-field communication (NFC) system may include a plurality of NFC devices each including an NFC circuit configured to wirelessly communicate using an NFC communications protocol, and a processor coupled to the NFC circuit. The processor may be configured to synchronize an internal timing signal to an external timing signal, cycle power to the NFC circuit to periodically switch the NFC circuit between a peer-to-peer recognition state and a low power state based upon the synchronized internal timing signal, and initiate peer-to-peer NFC communications with another one of the plurality of NFC devices when in range thereof and upon being switched to the peer-to-peer recognition state therewith.