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RFID for Consumer Electronics
A new breed of UHF EPC Gen 2 ICs enables a myriad of applications.
Now, here's where the bridge feature comes into play. Say, for example, you manufacture laptops. After each laptop passes final inspection, you can instruct its microprocessor to disable the device, rendering it useless if stolen. To do this, you use an RFID reader to send instructions to the RFID IC, which passes the information via the I2C interface to the microprocessor. At final distribution or point of sale, you upload an authentication key to the RFID IC, which sends it to the microprocessor; assuming it's the correct key, the microprocessor enables the device. Adoption of this scheme would, no doubt, deter theft.
Consumer electronics retailers benefit as well. To boost sales, a retailer could offer software-configurable upgrades, such as increased speed or enhanced graphics, and use a reader to make these changes while the laptop is still in its factory-sealed carton. Similarly, firmware patches could be uploaded to fix a software bug, and if a device is intended for a global market, a language preference could be set. For a special touch, the retailer could upload a personalized message on wallpaper.
The bidirectional communication bridge could also enhance return management, a benefit for manufacturers, retailers and consumers. If, for example, a laptop's hard drive fails, an error log is created and stored within the I2C. At the repair center, a technician could use a reader to collect the serial number and error log to determine the problem and verify warranty status.
Embedded Interactive Gen 2 solutions are designed to address the technology concerns voiced by consumer electronics manufacturers and retailers, enabling conventional track-and-trace applications—and much more.
Victor Vega is marketing director of RFID solutions for NXP Semiconductors, which provides solutions for mobile communications, consumer electronics and contactless payments.
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