NFC是SONY與Philips共同發展的技術,採取兩種規格,有接電源的為主要裝置,採用電池的隨身裝置則為次要裝置。 兩種規格的差異在於範圍的多寡以及耗電量。技術上採用了類似RFID的辨識技術並結合無線網路協定來傳輸資料。
n 頻段:13.56MHz
n 通訊距離:0-20cm
n 標準規格:
¨ ECMA 356/362
¨ ISO/IEC 21481 (ECMA 352)
¨ ISO/IEC 18092 (ECMA 340)
n 傳輸速度
¨ 424kbps (被動)
n 與Philips MIFARE和Sony Felica 智慧卡相容
Android 至2.3開始主打NFC的功能,並開始推出NFC相關的API,隨著Android版本不斷的提升NFC相關API的功能與支援性也愈來愈強大,目前Android NFC可以支援的格式有
The interface that all tag technology classes must implement. | |
Provides access to NFC-A (ISO 14443-3A) properties and I/O operations. | |
Provides access to NFC-B (ISO 14443-3B) properties and I/O operations. | |
Provides access to NFC-F (JIS 6319-4) properties and I/O operations. | |
Provides access to NFC-V (ISO 15693) properties and I/O operations. | |
Provides access to ISO-DEP (ISO 14443-4) properties and I/O operations. | |
Provides access to NDEF data and operations on NFC tags that have been formatted as NDEF. | |
Provides a format operations for tags that may be NDEF formattable. |
Tagstand官方網站: http://www.tagstand.com/