Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V.

Thomas Von Der Gruen

Josef Bernhard

Norbert Franke

Ingmar Bretz

Ernst Eberlein

Heinz Gerhaeuser

Niels Hadaschik

Heinz Gerhauser

Christopher Mutschler

Reiner Retkowski

Stephan Otto

Stefan Koehler

Guenter Rohmer

Ferdinand Kemeth

Matthias Schaefer

Thomas Leipold

Christian Paul

Gunter Rohmer

Stefan Kohler

Embodiments relate to determining a speed of a multidimensional motion of an athlete in a global coordinate system based on multidimensional acceleration data from a multidimensional accelerometer placed at a movable limb of the athlete, the movable limb being at least one of translatory and rotatable, and the movable limb defining a local coordinate system. Based on the multidimensional acceleration data, at least one correction quantity may be determined taking into account a rotation of the local coordinate system relative to the global coordinate system during the multidimensional motion. The speed of the multidimensional motion may be determined based on an integration of the multidimensional acceleration data and in consideration of the at least one correction quantity.

Determining a speed of a multidimensional motion in a global coordinate system

In a method for reconstructing a motion of an object from a sequence of motion pattern segments of a computer model of the object, a motion transition between an initial motion state and a final motion state of the object in a time interval of the motion is captured based on position data of the at least one sampling point which is received from the position marker. Further, at least one motion pattern segment corresponding to the motion transition is selected from a plurality of motion patterns of the computer model which are stored in a database such that the selected motion pattern segment leads with sufficient probability from the initial motion state to the final motion state for the time interval. Furthermore, an image of the motion of the object for the time interval is reconstructed using the initial motion state and the selected motion pattern segment.

Device, method and computer program for reconstructing a motion of an object

A device for recognizing when an object or a person crosses a threshold that is marked by a magnetic field comprises a first magnetic field sensor that is designed to detect a first magnetic field component of the magnetic alternating field and to deliver an associated magnetic field sensor signal. The device comprises a second magnetic field sensor that is designed to detect a second magnetic field component of the alternating magnetic field. The device also comprises an evaluator that is designed to deliver information in response to a change in a phase relationship between the magnetic field sensor signal delivered by the first magnetic field sensor and a reference signal based on the detection of the second magnetic field component by the second magnetic field sensor, said information indicating that the object or person has crossed the marked threshold.

System and method for detecting whether an object or person crosses a limit marked by a magnetic field

An oval ball, in particular rugby ball or football with a casing and with at least one electronic component or module with a transmitter unit, which is arranged in the casing and is held in a defined position, wherein the at least one electronic module is fastened on or in a shape part with a positive and/or material fit, in the region of the tips or in the region of a valve of the casing. In a further embodiment, the module is suspended on nets which are connected to the tip region of the casing in a large-surfaced manner.

Oval ball, especially rugby ball or football

A system for determining the position of an object, comprising a reference transmitter device () disposed in a fixed position, the reference transmitter device () having a reference time supplying means for supplying a reference time signal that indicates a reference time, at least two transmitter/receiver devices () disposed in fixed positions with respect to each other and to the reference transmitter device (), each transmitter/receiver device () having a time supplying means for supplying a time signal indicating a time, a receiver means for receiving the reference time signal from the reference transmitter device () and a synchronization means for processing the time signal and the reference time signal, as well as a position determining device () on the object for determining the position of the object.

System for determining the position of an object

A repeater system for receiving a modulated input signal and for transmitting a modulated output signal comprising a clock oscillator for providing a repeater system clock, a demodulator for demodulating an input signal and a modulator for modulating the demodulated signal to obtain a modulated signal. The demodulator comprises a first mixer, a first controllable oscillator and a feedback circuit, the first controllable oscillator being controlled by a first control value such that the frequency of the demodulated signal approaches a desired value. The modulator comprises a second mixer and a second controllable oscillator, the second controllable oscillator being controlled by a second control value such that the modulated output signal has a predetermined output frequency. A controller derives the second control value.

Repeater system and method of receiving a modulated input signal and transmitting a modulated output signal

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Kleinsendelbach, Germany

Thomas Von Der Gruen