This invention describes a system that authenticates a user and their electronic device. It works by receiving a biometric, knowledge, or behavior metric from the user. A specific version of this system uses a signal, called an "electronic-metric emission," that travels from one electronic device to another through a human body or very close proximity. This signal is then analyzed to authenticate the user or device, which can then trigger actions like controlling another device or making a financial transaction.
Why it matters: Filed before low-power body area network technologies were mature. Advances in human body communication and miniaturized sensors make this approach more feasible now.
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