Abstract: A method for a secured purchase process. The method may include encoding a device with a unique identification code related to a specific item, attaching the device to the item by a locking mechanism included in the device, receiving, by a receiver included in the device, a signal upon a completion of a payment transaction related to the unique identification code, enabling an unlocking movement of the locking mechanism upon receipt of the signal, and unlocking the locking mechanism to enable releasing the device from the item.

Abstract: Adaptive spectacles (20) include a frame (23), including a front piece (24) and temples (26) connected to respective edges of the front piece. Right and left electrically tunable lenses (30) are mounted in the front piece. Communication circuitry (68) disposed in the frame is configured to communicate over a wireless link with a mobile computing device (32) in proximity to the adaptive spectacles. Control circuitry (64) disposed in the frame is configured to apply control voltage waveforms to the electrically tunable lenses in order to set a refractive property of the electrically tunable lenses and to modify the control voltage waveforms in response to a command received over the wireless link by the communication circuitry from the mobile computing device.

Abstract: A method for a secured purchase process. The method may include encoding a device with a unique identification code related to a specific item, attaching the device to the item by a locking mechanism included in the device, receiving, by a receiver included in the device, a signal upon a completion of a payment transaction related to the unique identification code, enabling an unlocking movement of the locking mechanism upon receipt of the signal, and unlocking the locking mechanism to enable releasing the device from the item.