Patent ID: 7340345

Claim:
A method for evaluating phase signals for determining an angle or a path of a linearly or rotationally displaced component, the method comprising: scanning a number (N) of measured phase values (Δ) at at least one phase sensor arranged on the linearly or rotationally displaced component; transforming mathematically the measured phase values (Δ) into a new range using a linear transformation with a matrix (M 1 ); determining a quality level (R) by producing a vector (T) followed by the result of a quantization operation (V) regarding the vector (T); producing a further vector (X) from the difference (t) between the vector (T) and the result of the quantization operation (V) after a transformation has been carried out with a further matrix (M 4 ); calculating a minimum value from the components (x j ) of the further vector (X) to derive the quality level (R); and evaluating the phase signals and determining the angle or path of the linearly or rotationally displaced component based on the value of the quality level (R).