公开(公告)号：US20200295928A1

公开(公告)日：2020-09-17

申请号：US16646902

申请日：2018-09-11

Applicant: Airbus Defence and Space Limited

Inventor： Brian TURTON ,  Martin SHARPE

IPC: H04L9/08 ,  H04L9/06

Abstract: A method of data transmission, and more particularly a secure method of data transmission. The method comprises generating and sending a classical data stream and quantum data stream from a source to a destination. The step of generating and sending a classical data stream from the source to the destination comprises encrypting the data stream with the repeated use of a once-seen pad. Observing the quantum data stream received at the destination, may indicate eavesdropping and if so, the classical data stream is modified and sent from the source to the destination, including stopping the repeated use of the once-seen pad. The same once-seen pad may be used a number of times provided no third party has seen data encrypted by the once-seen pad.

公开(公告)号：US20180194463A1

公开(公告)日：2018-07-12

申请号：US15328352

申请日：2015-07-22

Applicant: AIRBUS DEFENCE AND SPACE LIMITED

Inventor： Julian HASINSKI ,  Brian TURTON

IPC: B64C39/02

CPC classification number: B64C39/024 ,  B64C39/028 ,  B64C2201/027 ,  B64C2201/108 ,  B64C2201/127 ,  B64C2201/162

Abstract: Unmanned aerial vehicles (1), and methods of flying such, comprising at least four rotors (2) arranged such that the plane of rotation of each rotor (2) is co-planar with a face of a notional polyhedron, and wherein each face of the notional polyhedron is co-planar with the plane of rotation of at least one rotor (2). Such methods comprise: a first step of flying the vehicle (1) using a first rotor set (2a-c) to provide lift; and, a second step using a second rotor set (2d-f) to provide lift; wherein, the second rotor set (2d-f) includes at least one rotor (2) that is not used to provide lift in the first step or that operates so that airflow through the rotor (2) is in the opposite direction to that through the rotor (2) during the first step; and, wherein at least one of the first and second sets (2a-c, 2d-f) comprises a plurality of rotors (2).