def get_ipts
      recl = 4

      begin
        ipts = (0..11).map do |i|
          ary = (0..2).map do |j|
            File.binread(@bin_path, recl, @pos + recl * j).unpack("I*")[0]
          end
          @pos += recl * 3
          ary
        end
        return ipts
      rescue => e
        raise
      end
    end
def get_ipts
      recl = 4

      begin
        ipts = (0..11).map do |i|
          ary = (0..2).map do |j|
            File.binread(@bin_path, recl, @pos + recl * j).unpack("I*")[0]
          end
          @pos += recl * 3
          ary
        end
        return ipts
      rescue => e
        raise
      end
    end
=========================================================================
 IPT

 @param:  <none>
 @return: Array of IPT
=========================================================================