Abstract: Apparatus for supporting a location-based application is disclosed. The apparatus comprises a plurality of mobile devices which report their locations to an application computer. The application computer then periodically or occasionally sends the mobile devices a message (textual, speech, photo or video etc.) which depends upon the reported location of the mobile device. A problem with known apparatus of this type arises when a plurality of users are partaking in the same location-based application together, but receive different messages because their positions are not identical. The location-based application supporting apparatus disclosed here overcomes this problem by first identifying mobile devices which are moving as a group, and then sending all members of that group the same location-based message. The solution is of particular utility in relation to located information, advertising, or reviews for shops, restaurants etc., located games, located educational experiences and location tourism.

Abstract: An association is created in a computer system between the appearance of a token and one or more stored files for the purpose of retrieving and presenting said one or more stored files. The appearance of the token is measured and a token identity is created from the obtained measurement. The token identity is stored in an identity store. The stored file is associated with the token identity within the computer system. The appearance of the token is subsequently measured and a subsequent identity is created for the token using subsequent measurement data obtained from the subsequent measurement. The identity store is searched for a match with the subsequent identity and upon the location of a match, the one or more stored files are retrieved and presented to a user.

Abstract: The present invention relates to context or location aware computing, and in particular though not exclusively to providing an activity based view of a location. The invention provides a method for providing activity based information for a location (100), and comprises determining the location (410); automatically determining data about a process associated with an activity on a device within the location (430); receiving at another device within the location activity based information which is dependent on the determined process data (420).