Abstract: A sound proof space, a ventilation system, and a method of ventilating a soundproof space, the ventilation system including at least one fan positioned at least one air inlet aperture or at least one air outlet aperture for sucking air therethrough and providing an air flow; at least one ventilation aperture for guiding air into the space to be ventilated; at least a first and a seconder air channel. The first and the second air channel are formed respectively into a single layer of a sandwich-type wall, roof or floor structure of the space to be ventilated; and the first and the second air channel are joined at one end thereof to form an indirect air path from the air inlet aperture to the ventilation aperture.

Abstract: A sound proof space, a ventilation system, and a method of ventilating a soundproof space, the ventilation system including at least one fan positioned at at least one air inlet aperture or at at least one air outlet aperture for sucking air therethrough and providing an air flow; at least one ventilation aperture for guiding air into the space to be ventilated; at least a first and a seconder air channel. The first and the second air channel are formed respectively into a single layer of a sandwich-type wall, roof or floor structure of the space to be ventilated; and the first and the second air channel are joined at one end thereof to form an indirect air path from the air inlet aperture to the ventilation aperture.

Abstract: A structure includes a body element and a surface plate attached to the body element. The surface element includes a substantially transparent material. The surface plate also includes on a portion thereof contacting the body element a colored surface layer.

Abstract: There is provided displaying a user interface during a power outage. A touchscreen comprises a lower layer comprising an electronic paper display and an upper layer comprising a transparent display. The touch screen may be arranged in a frequency converter and a drive system.

Abstract: A frequency converter comprises energy transfer means capable of wireless inductive power transfer to a wireless terminal device placed to an inductive charging position of the frequency converter. In response to recognising that the terminal device is placed to the charging position, an identification procedure is carried out between the frequency converter and the terminal device via a wireless connection established between the frequency converter and the terminal device. If based on the identification procedure it is determined that the terminal device is an authorized terminal device, the method comprises displaying, on a display of the frequency converter, a user interface of the frequency converter, such that the frequency converter is controllable by a user by means of interactive elements displayed on the user interface.

Abstract: An apparatus may include a processor configured to analyze a connected device to determine one or more capabilities of the device. The processor may be further configured to suggest one or more applications that the device is capable of implementing based at least in part upon the determined capabilities. The processor may be additionally configured to program at least one suggested application into a memory of the device such that the device is repurposed. Corresponding methods and computer program products are also provided.