Softpro Gmbh

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

Robert Boschgmbh

Markus Haid

Hoang Trinh

Urs Schneider

Kai Von Lübtow

Karsten Lissek

Alfons Fuchs

Roland Bauernfeind

A method and device for registering a handwritten personal signature and for judging its authenticity by comparison with previously registered measured values and data derived therefrom. Signature data is acquired by registering a signature handwritten on a surface by a three-dimensional inertial sensing system having rate-of-rotation sensors and linear acceleration sensors. The data is subjected to a subsequent procedure of recognition or verification or comparison with other signatures. Hence not only tracking is performed with reference to the tip of a writing implement, but the dynamics of the signature are registered and evaluated by numerical calculation and adopted as the basis for the subsequent comparison, effectively ruling out the possibility of fraudulent duplication or tracing-over of a signature by an unauthorized third party. The dynamics i.e. acceleration and deceleration phenomena and rates of rotation as the signature are executed and effectively registered. From them, supplementary measured variables are calculated and specific characteristics are defined from those variables. Those variables are adopted as the basis for comparison, the degree of accuracy of the verification that the signature is genuine can be substantially increased.

Method and device for detecting a hand-written signature or mark and for recognising the authenticity of said signature or mark

Method and device for registering a handwritten personal signature and for recognizing the authenticity of the signature

A device determines at least one characteristic point of a joint which joins together two limbs and is to be measured orthopedically comprising a first coupling element which may be positioned on a first limb adjoining the joint, a second coupling element which may be moved relative to the first coupling element and may be positioned on a second limb adjoining the joint, and a measuring device for determining the position of the first coupling element relative to the second coupling element. The measuring device has at least one reference point rigidly connected to one of the first and second coupling elements, and a reference point detection device rigidly connected to the respective other of the first and second coupling elements. During a movement of the first and second limbs with respect to one another the reference point detection device determines the at least one characteristic point.

Device and method for determining at least one characteristic point of joint to be orthopedically measured

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Stuttgart, Germany

Markus Haid