Abstract: An automatic line segment generator is disclosed primarily for use with linear array display devices. Converted analog data is received from a single slope analog to digital converter. This received digital data is synchronized with a system clock and is positioned and stored as line segment data during one measurement period of the analog to digital converter. New data is received during the next measurement period and is then synchronized, positioned and compared against the previously stored line segment data. The length of the line segment in storage will remain the same or increase based on the position and length of the newly received data, i.e. if the new data position is within the stored data position, the stored data remains the same and if the new data position is outside of the stored data position, the stored data length will increase to the new data position.