Abstract: A power management unit and a corresponding method for controlling performance and power consumption of a complex low-power integrated system's processing core by automatically reducing them to a level where outstanding computational operations and software tasks can be performed just in time for further processing. A linear non-recursive adaptive filter performs a processor load prediction of the system's processing core is applied, whose filter coefficients may e.g., be calculated based on the least mean square (LMS) optimization criterion or based on any other similarity measure. In this connection, the adaptive filter may e.g., be used to predict the regularity of the clock frequency in the processing core. By using this information, the linear non-recursive adaptive filter predicts the duration of how long the processing core may lower its operating voltage to still be able to complete all its tasks in time.

Abstract: This invention relates to apparatus for infolding laterally protruding wings of a filled sack onto adhesive strips provided on the top of the sack. Said wings have been formed when the top end portion of the sack has been stretched flat and has been closed by a seam weld and has been folded down onto one half of the flattened top surface of the sack. Two folding bars or folding rods are movably mounted in a machine frame and protrude freely in the direction in which the sacks are conveyed. Said folding bars or rods are adapted to be lowered onto and raised from the top surface of each sack and have outer edges defining fold lines for the wings to be infolded. Holders are mounted in the machine frame on both sides of the sack standing upright on a support. Each of said holders carries a holder frame provided with a gripper arm for engaging one of the wings from below. An upper gripper arm for cooperating with the lower gripper arm is pivoted in each of said holder frames.