Abstract: In selected examples, a vehicle control system (VCS) includes Bluetooth beacons and an app running on a mobile device, such as a smartphone or a key fob equipped with movement sensors and a Bluetooth® transceiver. Passive keyless entry capability of the system uses received signal strength indications (RSSIs) together with movement-related indications of the movement sensors to determine when the mobile device moves away from the vehicle beyond a predetermined departure distance, and/or approaches the vehicle to within a predetermined arrival distance. When the user approaches the vehicle, the mobile device automatically transmits an arrival notification to the VCS, which automatically performs arrival actions, e.g., unlocking doors and disarming security features of the VCS/vehicle. When the user moves away from the vehicle, the mobile device automatically transmits a departures notification to the VCS, which performs departure actions, e.g.

Abstract: In selected examples, a vehicle control system (VCS) includes Bluetooth beacons and an app running on a mobile device, such as a smartphone or a key fob equipped with movement sensors and a Bluetooth® transceiver. Passive keyless entry capability of the system uses received signal strength indications (RSSIs) together with movement-related indications of the movement sensors to determine when the mobile device moves away from the vehicle beyond a predetermined departure distance, and/or approaches the vehicle to within a predetermined arrival distance. When the user approaches the vehicle, the mobile device automatically transmits an arrival notification to the VCS, which automatically performs arrival actions, e.g., unlocking doors and disarming security features of the VCS/vehicle. When the user moves away from the vehicle, the mobile device automatically transmits a departures notification to the VCS, which performs departure actions, e.g.

Abstract: In selected examples, a vehicle control system (VCS) includes Bluetooth beacons and an app running on a mobile device, such as a smartphone or a key fob equipped with movement sensors and a Bluetooth® transceiver. Passive keyless entry capability of the system uses received signal strength indications (RSSIs) together with movement-related indications of the movement sensors to determine when the mobile device moves away from the vehicle beyond a predetermined departure distance, and/or approaches the vehicle to within a predetermined arrival distance. When the user approaches the vehicle, the mobile device automatically transmits an arrival notification to the VCS, which automatically performs arrival actions, e.g., unlocking doors and disarming security features of the VCS/vehicle. When the user moves away from the vehicle, the mobile device automatically transmits a departures notification to the VCS, which performs departure actions, e.g.

Abstract: In selected examples, a vehicle control system (VCS) includes Bluetooth beacons and an app running on a mobile device, such as a smartphone or a key fob equipped with movement sensors and a Bluetooth® transceiver. Passive keyless entry capability of the system uses received signal strength indications (RSSIs) together with movement-related indications of the movement sensors to determine when the mobile device moves away from the vehicle beyond a predetermined departure distance, and/or approaches the vehicle to within a predetermined arrival distance. When the user approaches the vehicle, the mobile device automatically transmits an arrival notification to the VCS, which automatically performs arrival actions, e.g., unlocking doors and disarming security features of the VCS/vehicle. When the user moves away from the vehicle, the mobile device automatically transmits a departures notification to the VCS, which performs departure actions, e.g.

Abstract: In selected examples, a vehicle control system (VCS) includes Bluetooth beacons and an app running on a mobile device, such as a smartphone or a key fob equipped with movement sensors and a Bluetooth® transceiver. Passive keyless entry capability of the system uses received signal strength indications (RSSIs) together with movement-related indications of the movement sensors to determine when the mobile device moves away from the vehicle beyond a predetermined departure distance, and/or approaches the vehicle to within a predetermined arrival distance. When the user approaches the vehicle, the mobile device automatically transmits an arrival notification to the VCS, which automatically performs arrival actions, e.g., unlocking doors and disarming security features of the VCS/vehicle. When the user moves away from the vehicle, the mobile device automatically transmits a departures notification to the VCS, which performs departure actions, e.g.

Abstract: In selected examples, a vehicle control system (VCS) includes Bluetooth beacons and an app running on a mobile device, such as a smartphone or a key fob equipped with movement sensors and a Bluetooth® transceiver. Passive keyless entry capability of the system uses received signal strength indications (RSSIs) together with movement-related indications of the movement sensors to determine when the mobile device moves away from the vehicle beyond a predetermined departure distance, and/or approaches the vehicle to within a predetermined arrival distance. When the user approaches the vehicle, the mobile device automatically transmits an arrival notification to the VCS, which automatically performs arrival actions, e.g., unlocking doors and disarming security features of the VCS/vehicle. When the user moves away from the vehicle, the mobile device automatically transmits a departures notification to the VCS, which performs departure actions, e.g.

Abstract: A method and apparatus are disclosed for characterizing and identifying tissues in a given body part using a transmitted ultrasound signal, wherein the method comprises receiving an ultrasound signal in response to the transmission of the transmitted ultrasound signal toward the given body part, computing an attenuation coefficient for the received ultrasound signal, the attenuation coefficient being indicative of the attenuation of the transmitted ultrasound signal in the tissue and identifying the tissue using the computed attenuation coefficient.