AuthenTec anti-spoofing technology then compares the data with expected properties to ensure fingerprint authentication.
While AuthenTec is known best for its fingerprint-sensor chips, it also has a number of security products.
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Apple recently made headlines by acquiring AuthenTec, a network and cloud security company with fingerprint identification technology.
Apple showed on Friday that it wants to improve security on its devices, agreeing to buy AuthenTec, a maker of fingerprint recognition technology.
Art Stewart, vice president of wireless products at sensor maker AuthenTec, which provided fingerprint sensors for the phone, says LG had "antenna issues" with the device.
Several weeks back I wrote that Apple is likely to use the Authentec business it acquired in 2012 to differentiate its products from a security and mobile payment perspective.
Ever since Apple purchased Authentec Inc in July of last year, there has been an endless stream of news stories obsessing over whether Apple will include a fingerprint scanner in their next release.
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Well as you can imagine, Apple opted for the former and in September it was reported that AuthenTec informed several customers that it would cease to offer its technology to those companies in 2013.
Of course, take any of these patent applications with a generous pinch of salt -- we haven't seen an Apple stylus yet, for example -- but perhaps this is the reason Apple bought fingerprint sensor maker AuthenTec back in July.
ENGADGET: Apple files patent application for fingerprint sensor that can be transparent or opaque
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