Abstract: The claimed subject matter provides a system and/or a method that facilitates enhancing interactive surface technologies for data manipulation. A surface detection component can employ a multiple contact surfacing technology to detect a surface input, wherein the detected surface input enables a physical interaction with a portion of displayed data that represents a corporeal object. A physics engine can integrate a portion of Newtonian physics into the interaction with the portion of displayed data in order to model at least one quantity related associated with the corporeal object, the quantity is at least one of a force, a mass, a velocity, or a friction.

Abstract: The claimed subject matter provides a system and/or a method that facilitates enhancing interactive surface technologies for data manipulation. A surface detection component can employ a multiple contact surfacing technology to detect a surface input, wherein the detected surface input enables a physical interaction with a portion of displayed data that represents a corporeal object. A physics engine can integrate a portion of Newtonian physics into the interaction with the portion of displayed data in order to model at least one quantity related associated with the corporeal object, the quantity is at least one of a force, a mass, a velocity, or a friction.

Abstract: The claimed subject matter provides a system and/or a method that facilitates enhancing interactive surface technologies for data manipulation. A surface detection component can employ a multiple contact surfacing technology to detect a surface input, wherein the detected surface input enables a physical interaction with a portion of displayed data that represents a corporeal object. A physics engine can integrate a portion of Newtonian physics into the interaction with the portion of displayed data in order to model at least one quantity related associated with the corporeal object, the quantity is at least one of a force, a mass, a velocity, or a friction.

Abstract: Managing content by influencing its distribution in the form of blocks or other units is crucial to the performance of a peer-to-peer content distribution system. We provide a content management module at each peer node to achieve this. The content management module implements a content request/response cycle in order to negotiate about blocks of content with other peer nodes. This cycle comprises an offer request, offer reply and a block request. These steps are preferably followed by data exchange and verification. The negotiation protocol used by our content management module provides a generic method that is advantageously used in conjunction with different encoding schemes such as full network coding and group network coding. In one embodiment we use group network coding and add information to the offer request and offer reply to facilitate efficient content distribution. Block request messages are selected to promote the use of on-the-fly decoding where possible.

Abstract: Surface computer user interaction is described. In an embodiment, an image of a user's hand interacting with a user interface displayed on a surface layer of a surface computing device is captured. The image is used to render a corresponding representation of the hand. The representation is displayed in the user interface such that the representation is geometrically aligned with the user's hand. In embodiments, the representation is a representation of a shadow or a reflection. The process is performed in real-time, such that movement of the hand causes the representation to correspondingly move. In some embodiments, a separation distance between the hand and the surface is determined and used to control the display of an object rendered in a 3D environment on the surface layer. In some embodiments, at least one parameter relating to the appearance of the object is modified in dependence on the separation distance.

Abstract: Publishing content using a peer-to-peer content distribution system is described. A publisher is required to request authorization to publish from an authorization body. Resources such as tracker and seed nodes are allocated in a peer-to-peer content distribution system and pre-processing of content to be published is carried out. For example, a content description is generated for each item of content as well as a set of checksums or other items for validating blocks of content. Publication can be terminated in a variety of different ways. For example, by using expiry methods, by active revocation of publishers, authorization bodies, or individual items of content.

Abstract: The claimed subject matter provides a system and/or a method that facilitates enhancing interactive surface technologies for data manipulation. A surface detection component can employ a multiple contact surfacing technology to detect a surface input, wherein the detected surface input enables a physical interaction with a portion of displayed data that represents a corporeal object. A physics engine can integrate a portion of Newtonian physics into the interaction with the portion of displayed data in order to model at least one quantity related associated with the corporeal object, the quantity is at least one of a force, a mass, a velocity, or a friction.

Abstract: Managing content by influencing its distribution in the form of blocks or other units is crucial to the performance of a peer-to-peer content distribution system. We provide a content management module at each peer node to achieve this. The content management module implements a content request/response cycle in order to negotiate about blocks of content with other peer nodes. This cycle comprises an offer request, offer reply and a block request. These steps are preferably followed by data exchange and verification. The negotiation protocol used by our content management module provides a generic method that is advantageously used in conjunction with different encoding schemes such as full network coding and group network coding. In one embodiment we use group network coding and add information to the offer request and offer reply to facilitate efficient content distribution. Block request messages are selected to promote the use of on-the-fly decoding where possible.

Abstract: Publishing content using a peer-to-peer content distribution system is described. A publisher is required to request authorization to publish from an authorization body. Resources such as tracker and seed nodes are allocated in a peer-to-peer content distribution system and pre-processing of content to be published is carried out. For example, a content description is generated for each item of content as well as a set of checksums or other items for validating blocks of content. Publication can be terminated in a variety of different ways. For example, by using expiry methods, by active revocation of publishers, authorization bodies, or individual items of content.