METHOD AND APPARATUS FOR PROCESSING ANGULAR DATA FROM ENCODER

摘要

An apparatus for processing angular data obtained from an encoder, comprising an arithmetic circuit (4) for processing angular data by using encoder signals of different phases as triangular wave signals, a storage (5) for storing corrective data for correcting an angular error between the encoder signal and the triangular wave signal by using the data from the arithmetic circuit (4) as the address, a circuit (6) for adding the data from the arithmetic circuit (4) to the corrective data from the storage (5), and a converter (7) for effecting angle conversion depending on the quadrant of the encoder signal. <IMAGE>