Ball-It Oy

Night Train Oy

Juha Rytky

Johannes Väänänen

Liisa Kuula-Paavola

Timo Partonen

Anu-Katriina Pesonen

Kimmo Myllyoja

Heikki Pylkkö

Disclosed is a method and a system implementing the method for determining an optimal time window for sleep of a person. The method includes receiving samples of a distal skin temperature of the person, and detecting a temperature change pattern in the samples of distal skin temperature. The temperature change pattern indicates a reference point within the circadian rhythm. The optimal time window for sleep is determined on the basis of the indicated reference point. The temperature change pattern is in the form of a drop in the distal skin temperature followed an increase in the distal skin temperature, where the drop and the increase occur within a time window of ten minutes or less.

Method and system for determining time window for sleep of a person

A user operable device for control of or communication with an electric appliance, in particular a user operable pointing device such as a mouse, including electrical components and circuits including sensor elements, processing elements and wireless communication elements for detecting movements including at least rotational movements of the device, producing data related to the movements and transmitting the data to the electric appliance, is characterized in that the device () is essentially a ball () including outer surface (') for free rolling and for receiving influences of physical effects on the surface and the device, and that the electrical components and circuits () are inside the ball () in integrated relationship with the ball. The invention concerns also a user interface including the user operable device of the invention.

User operable pointing device such as mouse

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Oulu, Finland

Juha Rytky