Abstract: A signal processor for an incremental encoder to provide output signals representing absolute position in any of a plurality of selectable scales and formats. In particular, incremental pulse signals from an incremental encoder are applied to a dedicated digital processor which is controlled by a read-only-memory to operate on the incremental input signals in a predetermined sequence of operations with associated logic units. To provide different output formats and scale factors, different processing of the incremental signals is provided by the same or different read-only-memory provided for operation with the system.