Marvell International Limited

Volocopter Gmbh

Thomas Ruf

Joachim Schmalz

Manfred Kunz

Michael Karl

Johannes Stephan

Walter Fichter

Jan Zwiener

A method is provided for stabilizing an orientation and height of a person or load-carrying multicopter with a plurality of motors, wherein the drive of the individual motors in flight is continuously calculated by a flight control unit and correspondingly prescribed to the motors using control technology, for which purpose, based on a desired torque &#x3c4;, of a desired thrust s preferably prescribed by a pilot signal, and of a motor matrix M, the drive of the motors is calculated by a motor allocation algorithm f and provided as a control signal to the motors, wherein the following applies to the drive and the corresponding motor control variables u: u=f(&#x3c4;, s, M). The method provides that A) the individual motors are weighted with a preferably diagonally filled matrix P, so that the following applies: u=f(&#x3c4;, s, M, P), the motor allocation algorithm calculates the drive u such that the individual motors make an individual contribution to the desired forces and torques T and to the thrust s in accordance with the matrix P depending on the weighting; and/or B) zero space orientations with 0=M&#xb7;uthat do not generate any torques or thrust, and therefore do not influence the flight movement, are used to drive the motors.

Flight control unit and method for flight stabilization of a person-carrying or load-carrying multicopter

A network device includes a first plurality of ports and a first plurality of communication links. Each port of the first plurality of ports communicates with a corresponding communication link of the first plurality of communication links. An adapter aggregates the first plurality communication links into a second plurality of aggregated links. The adaptor assigns a single media access control address to each aggregated link of the second plurality of aggregated links. A driver selects a first aggregated link of the second plurality of aggregated links as an active link based on a link quality of the first aggregated link. The driver sends and receives data over the first aggregated link using the single media access control address assigned to the first aggregated link. The driver selects a second aggregated link of the second plurality of aggregated links as the active link in response to the link quality of the first aggregated link being less than a link quality of the second aggregated link.

Switch failover for aggregated data communication links

A network device, method and computer program product for communicating data over aggregated links, wherein each of the aggregated links comprises a plurality of data communication links. The network device comprises n ports; and a processor to determine a link quality for each of m of the aggregated links, wherein m&#x2267;2, wherein each of the m aggregated links comprises a preselected plurality p of the n ports, select one of the m aggregated links based on the link quality determined for each of the m aggregated links, and send the data over the selected one of the m aggregated links.

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Sasbach, Germany

Thomas Ruf