全球领先的测试，测量及监视仪器供应商泰克公司今天宣布索尼公司已经选用泰克实时频谱分析仪（RTSA）以及专用的RFID分析软件以对基于索尼 FeliCa非接触式IC卡技术的读写器IC卡之间连接条件进行确认。这一特定用途的软件以及泰克实时频谱分析仪应用的结合将帮助索尼快速地进行连接环境的测试与纠错，并带来了具有高度一致性和可重复性的结果。
由索尼研发的FeliCa科技是一项意义深远的技术，此技术能在一张单独的卡上实现多种应用。这项技术被应用于“Edy”，Edy是一种通过FeliCa技术实现的e-money（电子货币）应用，通过一个备有预付款且可冲值的非接触式IC卡，使用城市交通系统的行人可顺利往返于运输系统各车站，使用Osaifu-Keitai移动电话，甚至将其同时用作为公司员工卡、学生证、会员卡以及各类市场的消费记点卡。截至2006年三月， FeliCa IC卡的总出货量已经超过一亿两千万，被广泛应用于日本、香港、新加坡、中国大陆、印度以及泰国公共交通系统中。
索尼认为，由于常规的频谱分析仪无法鉴别IC卡和读写器之间的传输数据，所以无法实现以时间为序对数据实施查阅，也无法满足连接条件的分析。这个问题已经被泰克RTSA解决，因为它可以实现以时间为序的数据查询，这一功能同数字示波器处理频谱分析仪的高动态范围功能类似。
当一个FeliCa IC的非接触式IC卡从读写器接收到一个RF信号时，它不仅仅从信号中产生电流型的信号，同样接收、分析并处理从读写器中发送的卡的指令，然后发送相应信号。鉴于此互动作用，在一个时间段内测量FeliCa卡的传输过程变得非常重要，而不仅是一个简单的单次传输。迄今为止，此类测量由需要由一个数字示波器来完成，原因是扫频频谱分析仪无法完成一个时段内的测量。而让这些测量通过一个示波器来操作很困难，因为来自磁卡的回复信号的水平（212KHz）在传输中与载波信号（13.56 MHz）相比相对较小。
新闻英文原文如下：
Sony Adopts Tektronix Real-Time Spectrum Analyzers to Test FeliCa Contactless IC Smart Card Systems
RFID Analysis Software Confirms Communication Status between FeliCa Contactless IC Cards and Readers / Writers
Tektronix, Inc. (NYSE: TEK), a leading, worldwide provider of test, measurement and monitoring instrumentation announced that Sony Corporation has adopted Tektronix Real-Time Spectrum Analyzers (RTSA) and RFID analysis software developed for measuring and analyzing communication conditions between a reader/writer and a IC card equipped with Sony FeliCa contactless IC card technology. This combination of application specific software and Tektronix Real-Time Spectrum Analyzers has helped Sony to quickly measure and troubleshoot communication conditions, and create consistent and reproducible results.
FeliCa technology developed by Sony is significant since a single card will be able to perform multiple applications. The technology is used for "Edy" - a form of e-money applying FeliCa technology - which is a prepaid rechargeable contactless IC card, commuter passes on various national transportation systems, Osaifu-Keitai mobile phones, employee and student IDs, membership cards, and point incentive cards. As of March 2006, the total number of FeliCa IC chips shipped surpassed 120 million and their use has expanded to include public transportation systems in Japan, Hong Kong, Singapore, China, India, and Thailand.
According to Sony, "Analysis of communication conditions has been impossible with conventional spectrum analyzers where data is not viewable on a timeline, because the data that is transmitted between the reader/writer and card cannot be identified. This problem has been solved with the Tektronix RTSA since it enables us to view data on a timeline, similar to a digital oscilloscope while possessing the high dynamic range of a spectrum analyzer."
When a FeliCa IC contactless IC card receives an RF signal from a reader/writer, it not only generates electricity from the signal, it also receives, analyzes, and processes the card command sent from the reader/writer and then sends a response signal. Because of this interaction it is important to measure a FeliCa card communication process over time, not a single shot event. Until now, measurements have been conducted with a digital oscilloscope since swept spectrum analyzers cannot make these measurements over time. It has been difficult to make these measurements with an oscilloscope since the response signal level (212 kHz) from the card during communications is extremely small compared to the carrier signal (13.56 MHz).
Tektronix Real-Time Spectrum Analyzers
Tektronix Real-Time Spectrum Analyzers do not perform measurements in the manner of conventional spectrum analyzers. Rather, the RTSA is a real time measuring device that triggers on changes in the frequency domain, seamlessly captures RF signals into its internal memory and performs spectral, time and modulation analysis with time correlated multi-domain views.
About Tektronix
Tektronix, Inc. is a test, measurement, and monitoring company providing measurement solutions to the communications, computer, and semiconductor industries worldwide. With 60 years of experience, Tektronix enables its customers to design, build, deploy, and manage next-generation global communications networks and advanced technologies. Headquartered in Beaverton, Oregon, Tektronix has operations in 19 countries worldwide. Tektronix' Web address is www.tektronix.com. |
