TECHNISCHE UNIVERSITÄT ILMENAU Patent applications |
Patent application number | Title | Published |
20130197668 | STRUCTURE MODELED ON A BIOLOGICAL TISSUE AND METHOD FOR PRODUCING SAID STRUCTURE - The present invention relates to a method for producing a structure modeled on a biological tissue. The invention also relates to a structure which can be produced using the method according to the invention. According to an embodiment of the invention, a precursor of a biopolymer is locally irradiated with electromagnetic radiation in a targeted manner, wherein the irradiation, in particular the selection of the areas to be irradiated, is effected according to data which describe a structural construction at least components of the extracellular matrix of the biological tissue. In this case, the electromagnetic radiation is such that two-photon or multi-photon absorption takes place in the irradiated areas of the precursor and results in the precursor being polymerized to form the biopolymer in the irradiated areas, with the result being that the precursor is at least partially solidified there. | 08-01-2013 |
20100054113 | Method for Selection of an Optimized Number of Subscribers in Mobile Radio Systems - This invention comprises a method of little complexity for selection of an optimized number of subscribers for transmission in wire-free message transmission systems having a plurality of antennas at the base station and having one or more antennas at the receivers, as well as space-division multiple access (SDMA) in conjunction with multiple access in the time domain or frequency domain. Subscribers with channels with little spatial correlation art selected for operation in the same time slot or frequency slot. In order to increase the throughput of the SDMA transmission method, with the relationship between the group size and the mean transmission power being taken into account. The invention interacts both with SDMA methods which do not allow any interference (Zero Forcing) and with methods with residual interference. It is based on a novel interpretation of the ZF principle with the aid of orthogonal projection matrices, which allow the channel quality to be estimated with much less computation complexity, based on use or the transmission method. The possible subscriber combinations are sorted efficiently with the aid or a tree-like search algorithm. The method makes use of perfect channel knowledge or alternatively averaged channel statistics. Quality of service requirements for the subscriber as well as fairness criteria can be taken into account. | 03-04-2010 |