Alcatel Lucent

Alcatel

France Telecom

Alcatel N.v.

Alcatel Business Systems

Patrick Daniel

Piotr Szychowiak

Thierry Houdoin

A system and a method for tracking users in a closed environment even in the case the available system for locating a user is an idle state is based on the use of a system which comprises a database for storing the location of the users measured at regular time interval within that closed environment. Such a system comprises further a processor for estimating the possible location of a registered user at any time according to the different stored measured location. Such estimation can be advantageously a statistical analysis corresponding to some daily geographical footprint of the registered user. The system comprises also a decision unit to provide the possible location of the registered user estimated for a specific time when required in the case the location measurement system is in an idle state. In that case, the estimated possible location can be forwarded to some PSAP.

Emergency services based on location information statistics

Known telecommunication systems like a DECT-system comprising a base-station and a handset or like a Digital Home Network system comprising a controller and several devices or a car radio system comprising a car radio and a front are based upon an authorisation process for introducing a new device or for coupling an already introduced but decoupled old device to said telecommunication system. Such authorisation process, which often is user-unfriendly, can be partially or even completely avoided by either using the result of an old identification process or by using a new identification process for identifying a user, which can be done in a much more user-friendly way.

Method for authorizing a communication between at least two devices

A method and apparatus for playing back a sequence of images from a run of component images successively supplied in digital form by a remote source to a receiver apparatus having the function of playing back the images of the sequence at a given rate, and in which each image constitutes an independent set that is received in the form of data trains. The apparatus includes verification that each received data train and each run of trains making up a set is valid, storing the most recently received valid set, reconstituting image signals from the most recently received valid set, and a clock for locally and independently generating clock signals for triggering visual reproduction of images as a function of circumstances.

Method of playing back a sequence of images, in particular an animated

ATM cells are used to transmit information supplied in the form of a series of separate, identically structured entities each corresponding to a whole independently usable by a given application. Each entity is transmitted as cells whose information field is identically composed of modules of fixed position and fixed size. A first module constitutes a cell continuity index. A second module contains entity data to be transmitted. A final module is established by means of a B. C. H. block type error detector-corrector code. A transmitter and a receiver include apparatus for implementing the method between a source application and a destination application across an ATM network.

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Illkirch, France

Patrick Daniel