Abstract:
The invention relates to a method for operating an ad-hoc network for the wireless data transmission of synchronous and asynchronous messages. According to the invention, the transmitters and receivers of neighbouring nodes on a transmission path are synchronised using cyclically transmitted identifiers, whose intervals define a time frame. The nodes of the transmission path reserve time slots within the time frame for the transmission of data packets of a virtual connection that are to transmitted synchronously. Free time slots in the nodes are filled with data packets that can be transmitted asynchronously.
Abstract:
The invention relates to an arrangement of contact surfaces (1) and testing surfaces (2) on a structured semiconductor chip (3). The contact surfaces (1) and testing surfaces (2) are electrically connected to one another via a conducting web (4). While the contact surfaces (1) are arranged in a first area (5) that does not contain any components of an integrated circuit, the testing surfaces (2) are located in a second area (7) of the upper side of the semiconductor chip (3) that contains components (6) of an integrated circuit.
Abstract:
The device proposed includes means for activating the device by a user, means for generating acoustic signals suitable for user-authentification purposes following activation and means for emitting acoustic signals in a way suitable for transmission by a telephone set.
Abstract:
A pair of conveyors having a pair of launch conveyors and at least one pair of drive conveyors is disclosed using modular flat belts. The pair of launch conveyors has zero motion, when a vehicle is driven onto the pair of launch conveyors where the vehicle is placed in park. The pair of launch conveyors is activated to a speed in synchronous with the pair of drive conveyers. The vehicle is moved from the pair of launch conveyors to the pair of drive conveyors and proceeds along the flat modular belts.
Abstract:
The invention relates to a data transmission method for the topping-up of a pre-paid electronic credit of a service user, by means of a data or telecommunication network, essentially, in real time. Said service user possesses a first electronic transaction account and a service operator possesses a second transaction account and, depending upon a transmitted signal sent from a terminal belonging to the service user, the pre-paid credit is increased by a certain pre-determined electronic monetary value and, simultaneously, the same monetary amount is transferred from the first transaction account to the second transaction account.
Abstract:
A solution of tetramethyl ammonium hydroxide in water contains a surfactant component and a hydrotropic component. A process for preparing a solution for developing exposed photoresists has the following steps: preparation of a solution of tetramethyl ammonium hydroxide in water; admixture of a surfactant component and admixture of a hydrotrophic component.