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MicroSD Card Brings NFC to Phones for Credit Card Companies, Banks
The In2Pay system is being tested in-house by two credit card firms, to determine if it can be used for sales transactions at NFC-enabled readers already installed at stores around the United States.
Nov 25, 2009—Since early this summer, two credit-card companies have been conducting in-house tests of an RFID module that plugs into a mobile phone's microSD memory card slot, thereby turning a cell phone into a Near Field Communication (NFC) device that can make payments, act as a loyalty card and download information from RFID tags embedded in smart posters.
The microSD RFID module, which can function as an NFC passive tag and as a reader, is provided by Dallas, Texas, contactless payment company DeviceFidelity, and is being named the In2Pay solution. The In2Pay microSD NFC card became commercially available this week, and the company hopes to see banks, wireless carriers and payment networks provide the technology to their customers. A similar microSD NFC card, provided by startup firm RFinity, is currently being trialed on the campus of Brigham Young University by students using a college account (see Idaho College to Test Secure NFC Phone Module). The In2Pay solution, however, takes the technology to credit card companies and is compatible with existing NFC-enabled point-of-sale (POS) terminals already in use around the United States, using the encryption protocol accepted by major credit and debit card providers.
According to Deepak Jain, DeviceFidelity's president and CEO, most phones are already equipped to use In2Pay cards—approximately 65 percent, he says, have a microSD card slot for memory cards that are typically used to store photos. Currently, Jain estimates, there are at least 500,000 NFC-enabled POS terminals in use by 50,000 to 60,000 merchants in the United States. Few cellular phones currently contain NFC RFID modules, however, so the NFC-enabled point-of-sale terminals are commonly being used to process contactless transactions by consumers with NFC-enabled credit or debit cards or stickers.
After receiving an In2Pay microSD card from a credit card company or bank, a consumer can insert the card into his or her phone, then follow a few prompts on the phone's screen to enable it to link to the user's credit card or bank account, if so desired, in order to set up a payment system. Once that occurs, the user can then tap the phone against an NFC reader at a retail location, rather than having to take cash or a credit or debit card out of a wallet in order to complete a purchase.
This solution, Jain claims, is the first enabling mobile phone users to put NFC technology directly into their phone without embedding an integrated NFC chip into the phone itself, and that works with existing NFC readers in stores. Other RFID technology firms provide an NFC sticker that attaches to the phone's exterior, but that has no direct link to the phone's cellular connection, so transaction data can only be communicated to other parties, such as a bank, through the NFC reader device located at the point of sale. In this case, however, users can access bank accounts, or receive updates via their phone's GPRS connection, which could then be stored on the chip.
Several other companies have developed solutions similar to In2Pay, though none are in the form of a microSD card. For example, Twinlinx, in conjunction with Inside Contactless, has created the Twinlinx MyMax, an NFC sticker that attaches to a phone and employs Bluetooth technology to communicate with that phone. On the other hand, start-up company Zenius Solutions, located in Redding, Calif., has developed a way to enable mobile phones to conduct NFC transactions by means of a card that fits into the phone's SIM card slot, as well as a cable connecting it to an NFC chip and antenna that can be attached to the outside of the phone.
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