Abstract: A multimedia system comprises a content obtaining module arranged to obtain a plurality of available content items for viewing or recording at a selected time, a storage module arranged to store viewing history information for content items that have previously been viewed, the viewing history information being stored in association with at least one time slot, a content rating module arranged to determine a rating for each of the available content items based on the viewing history information for one or more of the time slots that correspond to the selected time and a content recommendation module arranged to generate recommended content items based on the rating. The content rating module is arranged to update the rating for one or more of the recommended content items based on viewing interest information relating to a current viewing session.

Abstract: A method of receiving a data service in a system including a broadcast channel and a data channel, in which at least part of the data service is transmitted by at least the broadcast channel, the method including: receiving, using the data channel, first signalling information relating the data service to an identifier of a first data stream transmitted using the broadcast channel, the identifier being used for signalling in the broadcast channel; receiving, using the data channel, second signalling information relating to a relationship between the first data stream and data capable of being received using the data channel; and selecting one or both of the first data stream and the data capable of being received using the data channel for use in receiving the data service on the basis of the first and second signalling information.

Abstract: A method of manufacturing a workpiece involves performing any one of various post-processing part modification steps on a workpiece that has been previously subjected to laser shock processing. In one step, material is removed from the compressive residual stress region of the processed workpiece. Alternately, the workpiece may be provided with oversized dimensions such that the removal process removes an amount of material sufficient to generate a processed workpiece having dimensions substantially conforming to design specifications. Alternately, the material removal process is adapted to establish a penetration depth for material removal that coincides with the depth at which the workpiece exhibits maximum compressive residual stress. Alternately, a first high-intensity laser shock processing treatment is performed on the workpiece, followed by the removal of material from the compressive residual stress region, and then a second low-intensity laser shock processing treatment is performed on the workpiece.

Abstract: A system for evaluating the integrity of a bonded joint in an article includes a laser configured in a laser shock processing arrangement to perform a laser shock processing treatment on the article. A beam delivery system employs an articulated arm assembly to communicate the radiant energy emitted by the laser to a process head proximate the article. The laser shock processing treatment causes the formation of shockwaves that propagate through the article, inducing internal stress wave activity that characteristically interacts with the bonded joint. A sensor detects a stress wave signature emanating from the article, which is indicative of the integrity of the bond. A detector such as a non-contact electromagnetic acoustic transducer provides a measure of the stress wave signature in the form of surface motion measurements.