Abstract: An information processing device includes a memory, and a processor configured to execute a process. The process includes acquiring a first controller model, the first controller model including information indicating a control condition based on a measurement value, and information indicating a control action defining an action of a control target when the control condition is satisfied; and outputting a second controller model, the second controller model being capable of tolerating a measurement value including a measurement error, wherein the second controller model includes information indicating a control condition based on the information indicating the control condition included in the first controller model, and information indicating a control action based on the information indicating the control condition and the information indicating the control action included in the first controller model.

Abstract: An activity toy, having a spherical housing which is flattened at its poles so as to be supportable at two places on a support surface, has an elongated helical member which extends within the interior from one of the poles to the other. A bushing is fitted around the helical member and is sized so as to very lightly frictionally engage the helical member whereby when it moves along the longitudinal axis of the helical member, the friction between it and the helical member rotates it on the helical member. A collar is located around the bushing. The collar is free to spin independent of the bushing. However, during travel of the bushing along the helical member, the rotation of the bushing is communicated to the collar. The collar includes a plurality of axles which extend away from the collar, each of which carries an object on its end.

Abstract: A toy for displaying an illuminated pattern has a first and second panel located in a housing, each panel including an equal number of a plurality of openings aligned with the openings of the other panel. Located between the panels are light conducting members and an opaque membrane having a plurality of apertures, both the light conducting members and the apertures equal in number to and aligned with the openings in the panels. The light conducting members are fixedly retained in the housing and are positionable in a first, or closed, position, and a second, or open, position in association with the panels. Each light conducting member is capable of being moved from its first to its second position. When the light conducting members are in the closed position, the apertures, which are closed, inhibit transmission of light through the light conducting members.