Fraunhofer-gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

Reiner Retkowski

Josef Bernhard

Heinz Gerhaeuser

Gerald Ulbricht

Eberhard Gamm

Ernst Eberlein

Marco Breiling

Norbert Franke

Markus Hartmann

Thomas Von Der Gruen

Stefan Koehler

Thomas Von Der Grün

Sylvie Couronné

Marcus Bliesze

Mathis Huther

Stefan Wildenhof

Günter Hofmann

Thomas Pellkofer

Sylvia Couronné

A puck having an outer shell formed using a cylindrical body and a circular cover. The cylindrical cover exhibits a first groove and tongue structure formed in an axial end surface of the cylindrical body, which surrounds a cavity formed in the cylindrical body. The circular cover includes a second groove and tongue structure formed in a surface of the circular cover and fitting to the first groove and tongue structure. The circular cover is attached to the cylindrical body using the first and the second groove and tongue structure.

Puck and method for manufacturing a puck

Embodiments relate to a concept for an elastically deformable item of sports equipment comprising at least one deformable electromagnetic coil structure around a curved surface within the item of sports equipment, such that the at least one electromagnetic coil structure forms a three-dimensional curve having non-vanishing geometric torsion and curvature to provide an elongation reserve related to a maximum deformation of the item of sports equipment.

Elastically deformable item of sports equipment comprising a deformable electromagnetic coil structure

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

An I/Q modulator used for processing an I/Q signal to obtain a predistorted output signal. The I/Q signal has an I component and a Q component, and comprises a predistorter for predistorting, with a predistortion signal, a carrier signal, which comprises a first subcomponent and a second subcomponent that is substantially orthogonal to the first subcomponent, to obtain first and second predistorted subcomponents of the carrier signal. The predistortion signal depends on the I and Q components. A first multiplier multiples the I component by the first predistorted subcomponent to obtain a multiplied I component. A second multiplier multiples the Q component by the second predistorted subcomponent to obtain a multiplied Q component. An adder adds the multiplied I component and the negative multiplied Q component to obtain the predistorted output signal. Thus, a simplification of the I/Q modulator and a reduction in the number of necessary multipliers is achieved.

I/Q modulator with carrier predistortion

An I/Q modulator processes a time-discrete I/Q signal comprising an I component and a Q component. The I/Q signal is based on a sampling frequency which is equal to four times a carrier frequency of a carrier signal onto which the I/Q signal is modulated. A predistorter of the modulator predistort the I and components with a predistortion signal, which depends on the I and Q components, so as to form a predistorted I component and, in temporal alternation therewith, a predistorted Q components. An adjuster of the modulator adjusts the signs of the predistorted I and Q components so that two temporally successive predistorted components have a first sign and two additional successive predistorted components, which follow the first-mentioned components in time, have a second sign which is the inverse of the first sign, so as to produce therefrom an output signal at an output of the modulator.

Digital I/Q modulator having a predistortion

In a method for the continuous real time tracking of the position of at least one mobile object in a defined multidimensional space, at least one mobile transmitter module is attached to at least one mobile object and the signals from the at least one module are received by a stationary receiving and signal processing network and then centrally processed. The signals emitted by each transmitter module are electromagnetic waves sent within a frequency band range using time division multiplexing techniques. Due to the fact that the frequency band is used as a single channel for the purpose of maximizing the accuracy with which a position is detected, and due also to the fact that the communication process between the transmitters and the receivers is based on the principle of pseudo-random time division multiplexing using burst transmissions of low cross correlation with non synchronized pseudo-random patterns, there is created a method for the continuous tracking of the position of one or more mobile objects at any time and in any place which is of very high positional resolution and has a temporal resolution of just a few milliseconds.

Method for the continuous real time tracking of the position of at least one mobile object as well as an associated device

Growing community of inventors

Erlangen, Germany

Reiner Retkowski