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A pilot that allowed guests to utilize mobile phones with Near Field Communication technology to check in and out of hotel rooms, thereby replacing room keys, was a hit.

Do smartphones have the ability to read such a tag if an application were designed to supply content based on a tag's ID number? —Warm Regards, Carl ——— Sorry, Carl, that's currently impossible, as there are no smartphones that contain an ultrahigh-frequency (UHF)...

Innography, a company that offers an online intellectual-property business-intelligence application, has produced a report on radio frequency identification IP.

I am a Ph.D. candidate in Ohio University's Department of Mechanical and Systems Engineering, and I am conducting studies on radio frequency identification. Thank you very much! —Best Regards, Jie ——— The only two significant publications in this field are RFID...

What is the procedure for receiving your company's bimonthly print publication? —Name withheld ——— RFID Journal's print magazine is part of a Premium Membership, which you can sign up for at www.rfidjournal.com/article/subscribe. You can also receive just the print...

Is it possible to utilize the technology for that purpose? —Name withheld ——— Most RFID systems can not be utilized for distance detection, because signals from a tag to a reader often take multiple paths to the reader antenna. This makes calculating a tag's precise...

The tragic deaths of 18 people in Europe from an outbreak of E. coli poisoning highlights, once again, the need for traceability in the food supply chain.

Can you please indicate the amount I can expect to spend on purchasing tags? —Name withheld ——— That's a difficult question to answer. It's a bit like asking how much a car costs—there are big differences between a Ford Focus, a Toyota Prius, an Audi A8 and a Ferrari...

What is its status now, and how do you foresee it evolving in the future? —Name withheld ——— Interesting question. I could probably write a book in response, but I will try to explain in a few paragraphs how I view where adoption is at present, and where it is going....

What would be required for my company to accomplish this goal? —Name withheld ——— In order to connect to Facebook, you would first need to develop an interface that would tie a person's login information with his or her ID. For example, let's say I were to register...

I work on a PC that has such a device attached to it, which I sit near all day long. Is this an unsafe practice? —Ellie (United Kingdom) ——— Ellie, The pad is a 13.56 MHz reader, and I'm guessing you need to place a tagged object within 8 to 12 inches in order to read...

If so, which businesses are using the technology for this application? —Miriam ——— Miriam, None of the major courier companies are tracking individual parcels to the point of delivery with radio frequency identification technology. All of them have looked into RFID,...