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Contactless cards are a key technology for improving the consumer experience for retail transactions. Both computational speed and RF sensitivity are factored into the consumer's perceived transaction time. So a balance between speed and energy efficiency (a.k.a. sensitivity) is required in the chip design. The sensitivity of the contactless card is a more important metric than the computational speed, but the implementation of both translates into a better, overall user experience. Implementing a highly sensitive solution equates to a larger read zone and provides more time for the contactless card and the reader to complete a transaction while the card is in motion. The larger read zone means there is less hunting for the sweet spot on the reader.

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Format:PDFSize:633 KB
Date:Jul 2007
Pages:9

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