Patent ID: 7886229

Claim:
A user-interface for a content-management system, the user-interface being for inputting and responding to user commands whereby to cause one or more content-management functions to be performed on one or more items of content accessible via said content-management system, each said item of content being described by a set of meta-data, each item of meta-data of said set defining a respective attribute and a value for said attribute when describing said item of content, said one or more content-management functions notably including one or more operations selected in the group consisting of: selecting, accessing, searching, modifying, and presenting an item of content, adding and deleting an item of content from a collection, and selecting, accessing, searching, modifying, and presenting a data structure defining the organisation of a collection of said items of content, the user interface comprising: means for capturing a video stream including an image of a user; display means for preparing video data to cause an image corresponding to said video stream to be displayed on a screen; control means defining at least a first association between a respective first region of said display screen and a respective first content-management function, said first content-management function being dependent on a variable value of a first attribute defined by meta-data, the control means being adapted to register whether a given association between a display screen region and a content-management function is active, wherein the first association defined by the control means is an association between an elongate region of the display screen and a particular content-management function for varying the value of a given attribute of items of content, said given attribute taking a continuous range of values, and the control means is adapted such that when said particular content-management function is caused to be implemented, the variation in value produced by said content-management function depends on characteristics of user motion detected within the video stream displayed on said elongate region; and motion-detection means for detecting the user motion in a respective portion of said video stream to be displayed at said region of said display screen; wherein the control means is adapted such that, when, at a first time, the motion-detection means detects user motion in a portion of said video stream to be displayed at said first region of said display screen, the first association being active at said first time, the control means will cause said first content-management function to be implemented dependent on a first value of said first attribute, said first value being the value applicable to said first attribute at said first time.