Abstract: A method for determining whether to deliver a content item to a device for display in a display area of the device, the device comprising a communication interface, the method comprising: receiving a request message from the device, the request message being a request for a content item to be sent to the device, the request message comprising a device characteristic fingerprint and an interface address associated with the communication interface; performing an adjustment function on the interface address to form a modified interface address; forming an anonymised device identity by combining the device characteristic fingerprint with the modified interface address; storing the request for a content item against the anonymised device identity; determining whether a content item is available to the anonymised device identity based on a request frequency for the anonymised device identity; and sending a response message to the device, the response message indicating whether the content item is available for the

Abstract: Apparatus for determining a spatial property in a 3D-space, wherein the apparatus comprises a physical pointer, a camera and a position and orientation measurement system, wherein a first object in the 3D-space comprises a pattern on it, wherein the physical pointer is configured to contact a surface area of a second object in the 3D-space, wherein the camera is configured to capture, at a position of the camera with respect to the first object, image data comprising an image of the pattern; wherein the position and orientation measurement system is configured to determine a heading, position, verticality, attitude, and/or inclination of the camera based on the image of the pattern, and determine, based on the determined heading, position, verticality, attitude, and/or inclination of the camera and a relative position of the physical pointer with respect to the camera, the spatial property of the surface area by the physical pointer.

Abstract: A interference detection device (22) perform the following actions: receiving individual position data from mobile terminals (4(j)) which individual position data indicates an area (12(j)) in which individual ones of the mobile terminals (4(j)) are located based on positioning signals received by the mobile terminals (4(j)); identifying if individual position data may have been affected by one or more interfering signals transmitted by interfering device (14(m)) and interfering with the positioning signals; (A) identifying if a number of mobile terminals (4v(j)) in a first area (18) is higher than a maximum threshold number, and, if so, determining that individual position data of the number of mobile terminals (4v(j)) may have been affected by the interfering signals; or (B) identifying if a number of the mobile terminals (4(j)) in a second area (36) is lower than a minimum threshold number; and, if so, determining that individual position data of the number of mobile terminals (4(j)) may have been affect

Abstract: A method for the display of an image in a display area, the display area having a pixel density, the image being stored on a server in a plurality of versions, each version of the image having a respective image size, the method comprising: detecting the pixel density of the display area; determining a first version of the image to request from the server based on the pixel density of the display area, the first version of the image having a first image size; requesting the first version of the image; receiving the first version of the image; and displaying the first version of the image in the display area.

Abstract: Apparatus for determining a spatial property in a 3D-space, wherein the apparatus comprises a physical pointer, a camera and a position and orientation measurement system, wherein a first object in the 3D-space comprises a pattern on it, wherein the physical pointer is configured to contact a surface area of a second object in the 3D-space, wherein the camera is configured to capture, at a position of the camera with respect to the first object, image data comprising an image of the pattern; wherein the position and orientation measurement system is configured to determine a heading, position, verticality, attitude, and/or inclination of the camera based on the image of the pattern, and determine, based on the determined heading, position, verticality, attitude, and/or inclination of the camera and a relative position of the physical pointer with respect to the camera, the spatial property of the surface area by the physical pointer.