Abstract: A projection unit has a rotating capture module and a rotating projection module. The capture module has at least one color camera, at least one microphone and at least one depth camera and is configured to capture images of an environment. The rotating projection module is configured to project images onto at least one surface in the environment. The projection unit has a processor configured to use data captured by the rotating capture module to select the at least one surface in the environment, the selection being dependent on a field of view of at least one user in the environment and dependent on characteristics of surfaces in the environment. The processor is configured to control rotation of the rotating capture module such that the data captured by the rotating capture module is suitable for computing field of view the user, and for determining characteristics of the surfaces.

Abstract: A telecommunications device sends and receives messages comprising data about telecommunications resources and resource state of proximate devices. The telecommunications device has a processor configured to determine a proximate resource pool using at least the telecommunication resources of the other devices, and the state of the telecommunications resources of the other devices, the proximate resource pool comprising a list of content streams being generated by, or potentially being generated by, specified ones of the other devices. The processor is configured to receive instructions from one of the other devices, the instructions being to add, divert or stop a specified content stream of the proximate resource pool within a telecommunications activity ongoing at the device. In various examples, the processor is configured to execute the instructions responsive to the instructions being from a trusted device, or responsive to user authorization.