Abstract:
The invention relates to a method for address conversion in a network with at least two appliances that use different kinds of addressing methods, wherein a first address from a first addressing method is converted into a second address from a second addressing method. Positions of the addresses at which all addresses of the second addressing method that are in use each exhibit at least one identical character are hereby determined. An arbitrary amendment is made to at least one common character and the second address is formed from the common, amended characters and at least the characters from the first address, wherein the common characters within the second address occur in the same positions as in all other addresses of the second addressing method.
Abstract:
The invention relates to a method for address conversion in a network with at least two appliances that use different kinds of addressing methods, wherein a first address from a first addressing method is converted into a second address from a second addressing method. Positions of the addresses at which all addresses of the second addressing method that are in use each exhibit at least one identical character are hereby determined. An arbitrary amendment is made to at least one common character and the second address is formed from the common, amended characters and at least the characters from the first address, wherein the common characters within the second address occur in the same positions as in all other addresses of the second addressing method.
Abstract:
The invention relates to a medical apparatus (120,130) having a sensor (100,110) for detecting a force acting on the medical apparatus (120,130) in a longitudinal direction. The medical apparatus (120,130) comprises an opto -mechanical force transducer having a flexible part (22,42) for receiving the force, an optical guide (1) having an outcoupling surface (11) that faces the flexible part (22,42) of the opto -mechanical force transducer, and a photodetector which detects an interference pattern composed of light (32) in the optical guide (1) that is reflected from the outcoupling surface (11) of the optical guide (1) and of light (33) in the optical guide (1) that is reflected from the flexible part (11) of the opto -mechanical force transducer. The use of the interference pattern composed of the light reflected from the outcoupling surface of the optical guide and the light reflected from the flexible part of the opto-mechanical force transducer results in a more accurate measurement of the force acting on the medical apparatus.
Abstract:
A method of distributed medium access control wherein a device that intends to send data first monitors the medium, then pre-occupies a slot and only in case a collision has not occurred starts sending the data. A method for re-organizing the device's sequence for the medium access by using a busy priority signal wherein the device with the highest priority occupies the unused slot and updates it's slot number accordingly. A method for avoiding collision wherein a guard slot is generated just before the beginning of the MFS. A method for synchronizing a device by sensing the medium for a MFS or an EFS. A frame structure with a MFS, an EFS and a transmission portion with both a part for real-time and a part for non real-time transmission.
Abstract:
Method of modulating a digital data stream in MC technology, in which the constellation points (Xo, X1 ... XN-I) change their sequence in accordance with a mapping pattern (Psii) during modulation. This dynamic mapping represents an encryption, since it is not readily possible for an unauthorized subscriber to restore the original sequence. The encryption level is further increased by the use of a set of multiple mapping patterns (Psii), which is implemented during transmission in the form of a loop. The encryption level is further increased by defining a hop interval (Ihop), indicating the validity of an individual mapping pattern, after the handshake. The encryption key defines a set of mapping patterns (Psii), a permutation function (Si), which indicates the order of use of the individual elements of the set of mapping patterns, and a hop interval (Ihop).
Abstract:
The invention relates to a localization system that can be used for example in invasive interventions for determining the position of a catheter (2) such that this position can be mapped onto a previously acquired image (22) of the examined body region. The system comprises a transmitter (TX) that can be attached to the instrument to be located and that emits electromagnetic localization signals (S). Moreover, it comprises receivers (RX1, RX2, RX3) disposed at different known locations that pickup the localization signals outside the patient body. An evaluation unit (10) can then infer the spatial position of the transmitter (TX) from the measured arrival times of the localization signal at the different receivers (RX1, RX2, RX3).
Abstract:
The invention relates to an apparatus (20) for depth-resolved measurements of properties of tissue (114). The apparatus comprises illumination means (112) adapted to illuminate the tissue (114) with light, collector means (115) for collecting light which has not been absorbed by the tissue (114), determination means (108) for determining properties of the tissue (114) in different depths from the collected light, and a casing (121), in which at least a part of the illumination means and the collector means are located, for advancing into a hollow object. The illumination means (112) and the collector means (115) are adapted to collect light depth-resolved, and the determination means (108) is adapted to determine depth-resolved properties of the tissue (114) from the light, which has been collected depth- resolved.