Abstract: The present invention relates to a speech cancellation system for actively reducing the audibility to nearby persons of the voice of the user into a personal communication device.

Abstract: Improved resource allocation methods which use negotiation are described. In an embodiment, a request for access to a resource by a service user is received and an available access slot is allocated, where the slot may be a time or a position in a queue. This allocated slot may or may not meet the service user's requirements and if this allocated time does not meet the service user's requirements, an access time which does meet the requirements but is already allocated to another service user is identified. A message is sent to the user device associated with the other service user requesting a change in allocated access time. If the change is accepted the allocated times are swapped between the two service users.

Abstract: The present invention relates to a body supporting network suitable for use with a load supporting system. The network includes at least first and second pluralities of elongate support members securable with the system for supporting a load. The first and second support members respectively extend in first and second directions to provide potential load receiving intersections where the first support members cross the second support members. The network includes adjustment means to vary network pressure response at each intersection and to permit changes in network contour. The network includes interconnecting means for connecting the elongate members at the intersections to maintain network integrity when the network is subjected to the load.

Abstract: A vision compensation system includes a lens receiving frame with a pair of lens members, at least one of which has variable optical compensation capabilities. Carried by the frame are means for producing a signal as a function of the relative angular positions of the eyes of the wearer and means responsive to that signal for changing the optical characteristics of the variable lens to provide compensation for impaired accommodative capacity of the wearer's eye.