Patent ID: 8897511

Claim:
A system for registering a handwritten signature and for judging its authenticity, the system comprising: a three-dimensional inertial sensing system comprising at least one rate-of-rotation sensor and at least one linear acceleration sensor, wherein the three-dimensional inertial sensing system can be guided on a surface to execute a first handwritten signature; a data generating unit for generating data for each of a plurality of measured values, wherein the plurality of measured values is measured by the at least one acceleration sensor and by the at least one rate-of-rotation sensor; a link for passing the measured values from the three-dimensional inertial sensing system to the data generating unit; a calculating unit for calculating characteristics for the data; a memory for storing at least one of the measured values, the data and the characteristics; and a comparing unit for comparing the characteristics with corresponding characteristics calculated for data of a second handwritten signature.