Microsoft Technology Licensing, LLC

Toni Hemminki

Samu Kallio

Tero Maaranen

Teemu Rämö

A device comprising a touch sensing element and a processing unit is provided. The device has one or more cover operation modes. The processing unit is adapted to activate one of the cover operation modes of the device when a non-conductive opaque cover element is applied to the device, and the device is adapted to be operated via the touch sensing element through the non-conductive opaque cover element when the cover operation mode of the device is active. A system comprising a device and a cover element is provided. A method for controlling a device comprising a touch sensing element is also provided.

Device operated through opaque cover and system

A temperature of a display is evaluated from the image displayed. The device may be tested with various images or with various test patterns in order to obtain the heat generation response related to the image. For example, a bright image may generate more heat than a dark image. The heat generation response behavior is stored into a device memory. A heat radiation response behavior is also obtained with various test patterns. The display temperature is estimated using an image to be displayed with the predetermined heat generation and heat radiation responses. The ambient temperature may be used to improve the estimation.

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Tampere, Finland

Toni Hemminki