Apparatus for incremental encoder decoder and method thereof

The present invention relates to an incremental encoder decoder apparatus and method. According to the present invention, there is provided an apparatus for generating a signal for determining a position by processing a pair of signals output from the analog encoder, a predetermined voltage of a signal for each of the respective signals to the analog signals as input magnitude and phase including having the frequency multiplication for converting from current converter and a current converter for converting a current into a voltage signal having an increased each current signal output frequency portion, and a semiconductor element such as a single junction transistor for frequency doubling , it can be used step by step plurality it in order to obtain the required accuracy, and can be as high accuracy as compared with the conventional encoder system for determining position, to an incremental decoder, it is possible to reduce the rotor diameter of the device, such as a servo motor, a conventional it may keep the system and compatibility of a conventional system of The need is minimal change more in order to obtain precise location information may need the assistance of the processor reduces saving of system resources, eliminating the need for expensive analog multiplier conventionally used product size for component mounting eopeumyeonseo the need to increase the effect to reduce product manufacturing costs.