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Pervasive computing devices give fans more control over their experience and more information about the games they love, even when they're miles away. Mobile devices have put sports into the pocket of the fan. Mobile content and messaging deals let consumers access their sports when and where they want to. Prior to the use of the wireless caddie, the application provider, set up a Wi-Fi network around each course. with the new devices, the existing network offers more ubiquitous coverage with less set-up time. Extraction relies on an image-processing technique that can pull out information and decode the barcodes. According to IBM, when this system is in place, any mobile device can be used with a blacklight-LED-enabled camera as the reader.