Invention Grant
US07057492B2 Enabling/enhancing a feature of an electronic device using radio frequency identification technology 失效
使用射频识别技术实现/增强电子设备的特征

Enabling/enhancing a feature of an electronic device using radio frequency identification technology
Abstract:
A radio frequency identification (“RFID”) device (102) having stored thereon an expiration and a set of data bits which, when presented to a processing device (602) via a RFID reader (206), causes the processing device (602) to enable a feature that would otherwise be disabled in an electronic device (600), and disable the feature when the expiration reaches a predetermined value.
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