摘要:
A standalone memory device is provided that when in a first state allows data to be written to the device from a data source but prevents a normal user from useably accessing that data. When in a second state the device enables the user to useably access data stored in the device. The device is arranged to implement a prohibition or restriction on re-entry to its first state after having left it. In preferred embodiments, the device limits the number of times or the frequency at which, it re-enters its first state, whereby to limit the amount or rate of transfer of data via the memory device from the data source to a data recipient. The device can be used to limit content download from data sources at an exhibition. A system and method using the device are also provided.
摘要:
A memory tag has a memory. Associated with the memory tag there is a readable structure. The readable structure can be read to generate an identifier. However, the readable structure cannot be provided so as to encode a predetermined identifier.
摘要:
A physical object includes a base medium, such as a paper sheet, and a memory tag embedded in it or attached to it. The memory tag stores at least one measure/location data pair including a measurement of a location-dependent characteristic of the base medium originally associated with the tag, and a location in or on the object where the measurement was made. Preferably the measure/location data pair is digitally signed and stored in encrypted form. By checking whether the measure included in the stored data pair matches a current measure of the base medium at the indicated location, it is possible to check whether the base medium is the original medium. Apparatus is provided for originally writing the data pair to the memory tag; apparatus is also provided for subsequendy using the data pair for carrying out the checking operation.
摘要:
A mobile device is used to effect task-related communication with a remote entity via the communications infrastructure of a wireless hotspot through which the mobile device is moving. The device includes a first estimation arrangement for estimating the time remaining before the mobile device leaves the coverage zone of the hotspot having regard to the predicted movement of the device. The device further includes a second estimation arrangement for estimating the time needed to complete the task-related communication. These two time estimates are compared with each other by a monitor unit of the device to determine whether there is sufficient time to complete the task-related communication.
摘要:
A memory tag has a memory. Associated with the memory tag there is a readable structure. The readable structure can be read to generate an identifier. However, the readable structure cannot be provided so as to encode a predetermined identifier.
摘要:
A cellular communications service provider authenticates a provider of a location-dependent service, such as a wireless hotspot. Once the cellular communications service provider is aware of potential use of the service by the user, it authenticates the service provider and provides an authentication to the user. Users can thus avoid untrustworthy providers of local services.
摘要:
The presence of persons is detected, for example, by detecting short-range communication devices carried by the detected persons. The interests of the detected persons are then determined by reference to specific interests transmitted by the user devices and/or by reference to customer profile data. The discovered interests of the current detected persons are then used to select content for display on an electronic display during a next display slot. The display is spaced from the zone in which the persons are detected, being located at a downstream location through which most of the detected persons will pass.
摘要:
The proximity of potential customers to a shop is detected, for example, by detecting short-range communication devices carried by passers-by. The interests of the detected passers-by are then determined by reference to specific interests transmitted by the passer-by devices and/or by reference to customer profile data. The discovered interests of the current passers-by are then used to select content for display on a shop-window electronic display during a next display slot. Passers-by who may be particularly interested in the displayed content are preferably sent an alert. In other embodiments, the targeted audience is a static group, such as train passengers, with the targeted information being displayed at a station.
摘要:
A user is pre-qualified for a service provided at a particular location. Location data indicative of where the service is to be triggered and a service element are stored. The service instance element is a full customised instance of the service delivery code or other item that provides an association between the user and an instance of the service for which the user is qualified. The user location, as indicated by a mobile entity associated with the user, is periodically checked against the location data. When a location match occurs, the service instance for which the user has been qualified is executed to deliver the required service to the user. An example is an airline traveler buying, from a travel agent, an air ticket having an associated service wherein, the traveler, upon arriving at the relevant airport, is contacted via its mobile device and guided through check-in and boarding.
摘要:
A method of storing, accessing and displaying electronic data features: storing a first part of the data in a memory tag; storing a second part of the data in a separate location having an address, using a reader, when data is accessed, to couple to the memory tag and access the first part of the data and, while or after the first part of the data is being displayed on a screen, and using a communication unit to link to the address of the separate location and obtain the second part of the data.