But whereas RFID systems transmit little more than an electronic bar code, NFC offers two-way communication and lets devices interact in more complex ways.
不过RFID系统只能传输很少的电子条形码，而NFC可以提供双向传输及设备间更复杂的沟通方式。
Earlier this year Intel, the world's biggest chipmaker, said it had developed a new chip especially for UHF readers, which should help to bring the cost of RFID systems down even further.
今年早些时候，全球最大的芯片制造商英特尔公司声称，其制造出专为超高频读取器制造了一款新的芯片，这款芯片可以帮助进一步的降低RFID系统的成本。
This is similar to the radio frequency identification (RFID) systems often seen in transit systems such as San Francisco's Clipper swipe card or London's Oyster scheme.
这个系统类似于旧金山路路通卡及伦敦Oyster公交卡采用的射频识别（RFID）系统。
UHF RFID systems have the largest market potentials, but are also the most difficult to implement.
其中超高频段是最具有市场潜力的频段，但是也是技术上最难实现的频段。
The experiment results show the method is easy and practical, and can provide good advices for deploying RFID systems.
该方法操作简单，实用性强，可以为RFID系统的优化提供指导性建议。
The tag antenna is a key component of RFID systems. Dipole antenna and its modification types are widely used in UHF band.
标签天线是RFID系统的关键部件， UHF频段RFID系统多采用偶极子天线及其变形型式。
The research and development on UHF RPID reader and tag are driven by the requirements in application of UHF RFID systems in recent years.
近几年，超高频（UHF）频段射频识别系统应用的要求推动了超高频阅读 器和电子标签的研究与开发。
Therefore, the design of compact high-performance microstrip patch antenna to meet the requirements of RFID systems has become a worthy research topic.
因此，设计小型化高性能的微带天线满足RFID系统的要求就成为了一个值得研究的课题。
In terms of operation frequency, RFID systems can be divided into four categories: low frequency (LF), high frequency (HF), ultra high frequency (UHF), and microwave.
根据工作频率来分，RFID系统可以分为低频，高频，超高频和微波四个波段。
RFID systems achieve auto-identification and data-gathering of the object to be identified by utilizing space coupling of radio frequency signal to conduct two-way transmission of signals.
RFID系统利用射频信号通过空间耦合进行双向信息传输，实现对待识别物体的自动识别和数据采集。
RFID systems with the advantages such as large quantity of data, confidentiality, anti-interference capability, short recognition time and lower cost, are widely used in various industry sectors.
RFID系统具有数据量大、保密性高、抗干扰能力强、识别时间短、费用较低等优点，被广泛运用于各个行业领域。
Mutual authentication mechanisms can be used in Radio Frequency Identification (RFID) systems to preserve the confidentiality of the RFID tags.
无线射频识别(RFID)系统的双向认证机制可以有效地保护标签的机密性。
Mutual authentication mechanisms can be used in Radio Frequency Identification (RFID) systems to preserve the confidentiality of the RFID tags.
无线射频识别(RFID)系统的双向认证机制可以有效地保护标签的机密性。
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