公开(公告)号：US09390300B2

公开(公告)日：2016-07-12

申请号：US14436502

申请日：2013-10-18

Applicant: ST-Ericsson SA

Inventor： Minh Tri Do Khac ,  Rajkrishna Pillai Ravindran

IPC: H04B5/00 ,  G06K7/10

CPC classification number: G06K7/10019 ,  G06K7/10237 ,  G06K7/10297 ,  H04B5/0062

Abstract: An NFC-enabled device (12) comprising a host (22), an NFC interface (26) and an RF transceiver (24) configured to emit a first RF field (46) to power-up one or more in-range RF barcodes (16, 60), the NFC-enabled device (12) being configured to detect the presence of an RF barcode (16, 60) upon powering it up and being configured to read data (48, 62 ) from the one or more detected, in-range RF barcodes (16, 60), characterized by the NFC-enabled device (12) periodically (42) emitting the first RF field (46) and being configured to transmit only changes (64) in the read data (48, 62) from the or each RF barcode (16, 60) to the host (22). The invention therefore presents several advantages, namely: it can improve the user's experience by keeping the listen mode active, even in the presence of a nearby Kovio Tag; and it can save battery power by performing a periodic Kovio tag detection instead of a continuous one.

Abstract translation: 一种支持NFC的设备（12），包括主机（22），NFC接口（26）和RF收发器（24），其被配置为发射第一RF场（46）以为一个或多个范围内的RF条形码 （16,60），所述NFC功能设备（12）被配置为在为其加电并检测RF条形码（16,60）的电源并且被配置为从所述一个或多个检测到的数据（48,62）读取数据 定期射频条形码（16,60），其特征在于，启用NFC的设备（12）周期性地（42）发射第一RF字段（46），并且被配置为仅传输读取数据（48）中的改变（64） ，62）从每个RF条形码（16,60）到主机（22）。 因此，本发明具有几个优点，即：即使在附近的Kovio标签的存在下，也可以通过保持听音模式的活动来改善用户的体验; 并且可以通过执行周期性的Kovio标签检测而不是连续的检测来节省电池电量。