Abstract: A method of authenticating a mobile device over Bluetooth advertisements according to one embodiment includes broadcasting, by an access control device, a first Bluetooth advertisement including a challenge message generated by the access control device, receiving, by the mobile device, the first Bluetooth advertisement including the challenge message, broadcasting, by the mobile device, a second Bluetooth advertisement including a challenge response message generated by the mobile device based on the challenge message, receiving, by the access control device, the second Bluetooth advertisement including the challenge response message, and determining, by the access control device, whether the mobile device is authorized to perform an action with respect to the access control device by verifying the challenge response message.

Abstract: A method of authenticating a mobile device over Bluetooth advertisements according to one embodiment includes broadcasting, by an access control device, a first Bluetooth advertisement including a challenge message generated by the access control device, receiving, by the mobile device, the first Bluetooth advertisement including the challenge message, broadcasting, by the mobile device, a second Bluetooth advertisement including a challenge response message generated by the mobile device based on the challenge message, receiving, by the access control device, the second Bluetooth advertisement including the challenge response message, and determining, by the access control device, whether the mobile device is authorized to perform an action with respect to the access control device by verifying the challenge response message.

Abstract: A method of authenticating a mobile device over Bluetooth advertisements according to one embodiment includes broadcasting, by an access control device, a first Bluetooth advertisement including a challenge message generated by the access control device, receiving, by the mobile device, the first Bluetooth advertisement including the challenge message, broadcasting, by the mobile device, a second Bluetooth advertisement including a challenge response message generated by the mobile device based on the challenge message, receiving, by the access control device, the second Bluetooth advertisement including the challenge response message, and determining, by the access control device, whether the mobile device is authorized to perform an action with respect to the access control device by verifying the challenge response message.

Abstract: A vehicle interior panel for use over an airbag includes a substrate having an airbag door region and a decorative covering disposed over the airbag door region. A tear seam is formed in the decorative covering along a path having an end portion that is non-orthogonal with respect to a hinge side of the airbag door region. The tear seam path may include a central portion that lies along a side of the airbag door region opposite the hinge side, along with end portions that form obtuse included angles with the central portion. In some cases, the end portions diverge from a perimeter of the airbag door region and may generally extend along high deployment stress regions of the covering. Tear seams formed along such a path may reduce airbag inflation energy losses associated with tearing the covering material(s) during airbag deployment.