Em Microelectronic-marin Sa

The Swatch Group Management Services Ag

Smartrac Technology Germany Gmbh

Smartrac Technology Wehnrath Gmbh

Thomas Gyger

Michel Willemin

Jean-Claude Martin

Georges Nicolas Hayek

Volker Urban

Nakis Karapatis

An assembly includes a main terminal equipped with a communication module using at least a first communications protocol capable of connecting the main terminal to a communication network, which enables the use of at least one function, the main terminal being arranged to use at least one configuration program, and the configuration program enables at least one preferred function to be selected and a code representing the selected preferred function to be generated, and a second communications protocol. The assembly additionally comprises at least one secondary terminal equipped with a passive communication module using the second communications protocol to communicate with the main terminal in order to protect the code representing the selected preferred function.

Assembly of connected terminals for programming and managing a selection of functions

The method enables authentication data to be communicated and checked between a transponder device () and a reader unit () of a vehicle in order to authorize access to the vehicle. The device includes a logic circuit (), a non-volatile memory (), an encryption and/or decryption circuit () and a first transmission and reception module () of data signals (S). The reader unit includes a microprocessor unit (), a memory (), a random number generator () and a second module () for transmitting and receiving data signals (S). A random number (RN) generated in the reader unit is transmitted with a first encrypted function obtained using the random number and a secret key. The transponder device receives the random number and the first encrypted function. A new first encrypted function is calculated in the transponder device using a secret key identical to the secret key of the reader unit. This new first function is compared with the first received encrypted function. A second encrypted function is also calculated in the transponder device in order to be transmitted to the reader unit solely if the new first encrypted function is equal to the first received encrypted function. The validity of the second encrypted function is checked in the reader unit in order to authorize access to the vehicle. The number of bits of the random number, of the first and second encrypted functions can be configured in the transponder device and/or in the reader unit with a determined length.

Method for communicating and checking authentication data between a portable transponder device and a vehicle reader unit

The invention concerns a watch including a case fitted with a glass and containing display means able to be observed through the glass, characterised in that said glass is made from a plate formed of a fiber optic group.

Watch crystal having an optical effect and watch fitted with such a crystal

There are described a system and a method of detecting the passage of persons or objects through an entry-exit () of a delimited space (). The direction of passage is detected on the basis of the reception, by a portable electronic unit () with which the person or the object is equipped, of first and second electromagnetic signals (a, b) respectively transmitted in respective spatially separate and partially overlapping first and second communication regions (A, B) each crossing an entry-exit zone () defined by the entry-exit. The first and second electromagnetic signals are transmitted substantially in phase at the same frequency and each comprises an identical message portion (), one of said first and second electromagnetic signals further comprising an additional message portion () identifying the corresponding communication region (A, B), transmission of the other of said first and second electromagnetic signals being interrupted during the transmission of said additional message portion.

Growing community of inventors

Les Ponts-de-Martel, Switzerland

Thomas Gyger