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US08750833B2 Proximity based security protocol for processor-based systems 失效
基于接近的基于处理器的系统的安全协议

Proximity based security protocol for processor-based systems
Abstract:
A security protocol may be implemented on a processor-based system by providing a wireless signal to a handheld device normally carried by the user. If a response is not received, it may be determined that the user is not sufficiently proximate to the device being accessed and that, therefore, the person accessing the device is not authorized. An appropriate security protocol may be implemented as a result.
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