Abstract: This invention relates to user interface gestures for moving a virtual camera on a mobile device. In an embodiment, a computer-implemented method navigates a virtual camera in a three dimensional environment on a mobile device having a touch screen. A user input is received indicating that two objects have touched a view of the mobile device and the two objects have moved relative to each other. A speed of the objects is determined based on the user input. A speed of the virtual camera is determined based on the speed of the objects. The virtual camera is moved relative to the three dimensional environment according to the speed of the virtual camera.

Abstract: This invention relates to navigation in a three dimensional environment using an orientation of a mobile device. In an embodiment, a computer-implemented method navigates a virtual camera in a three dimensional environment on a mobile device. The method includes: receiving orientation information of the mobile device; and orienting the virtual camera in the three dimensional environment according to the orientation information.

Abstract: The present invention concerns an electronic gaming system configured to provide for end-user control of an on-screen gaining character, the system comprising means for generating an on-screen graphical element comprising first and second markers which are arranged to move relative to one another during operation of the system, the arrangement being such that in operation when said first and second markers attain a pre-defined positional relationship relative to one another the on-screen gaming character is controllable to perform a pre-determined action. Hence, there is provided a timing and reaction based control system configured to allow an end user to interact with an electronic same so as to control the on-screen character to perform actions, movements or tricks.

Abstract: A seal assembly for the protection of a static seal device for use in a vacuum pump. The seal assembly comprising at least two components which are sealingly connected together, an o-ring seal, which is engaged between the two components to prevent transfer of fluid to and from the pump between these two components and a fluid channel. The fluid channel being in the plane of the o-ring and located between the o-ring seal and a process gas flow path. The fluid channel provides a path for a barrier gas to be routed when the apparatus is in use. The channel being connectable to an external source of barrier fluid and having an outlet in fluid communication with the pump swept volume.

Abstract: The present invention concerns an electronic gaming system configured to provide for end-user control of an on-screen gaming character, the system comprising means for generating an on-screen graphical element comprising first and second markers which are arranged to move relative to one another during operation of the system, the arrangement being such that in operation when said first and second markers attain a pre-defined positional relationship relative to one another the on-screen gaming character is controllable to perform a pre-determined action.