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NFC
This technology evolved from contactless radio frequency identification (RFID) and was jointly developed by Philips Semiconductors (now NXP Semiconductors), Nokia and Sony * * *, based on RFID and internet technology. Near Field Communication (NFC) is a short-range high-frequency radio technology, with the operating frequency of 13.56MHz and the distance of 10 cm. Its transmission speed is 106 kilobits/sec, 2 12 kilobits/sec or 424 kilobits/sec ... At present, the near field communication has passed the ISO/IEC IS 18092 international standard, ECMA-340 standard and ETSits102. NFC adopts active and passive reading modes.
NFC near field communication technology is developed from the integration of contactless radio frequency identification (RFID) and internet technology. It integrates the functions of sensor card reader, sensor card and point-to-point on one chip, and can identify and exchange data with compatible devices in a short distance. The working frequency is 13.56MHz, but users who use this mobile payment scheme must change their dedicated mobile phones. This technology is widely used in Japan and South Korea. Their mobile phones can be used as airport boarding verification, building access keys, transportation cards, credit cards, payment cards and so on.