Abstract: A digital microelectronic circuit comprises a clocked data-processing unit (1) and a converting unit (2) which reads in data present at the output of the data-processing unit, performs a predetermined converting operation on the data and passes on the converted data. The converting unit is realized in an asynchronous logic circuit, such that the period of time for performing the converting operation is shorter than the shortest time interval to the next change of the data present at the output of the data-processing unit. In this way, fast, serial synchronous processes can be parallelized from the point of view of the slow synchronous system in synchronous systems which are slow relative thereto by using asynchronous logics, without a further high-frequency clock system being required.

Abstract: The invention relates to thermosensitive polymers which contain magnetic and/or metallic colloids and whose physical structure can be altered through magnetic induction or through the supply of energy. The invention also relates to processes for the production of such thermosensitive polymers, and the use of such polymers for diagnostic and therapeutic purposes.

Abstract: Spherical, transparent silica gel particles with a high luminescence that are produced through the encapsulation of one or more different luminescent substances in a silica gel matrix. By varying the concentration of the luminescent substances and through the encapsulation of substances with different emission frequencies, the particles can be used as multiplex coding and marker systems in bioanalytics and diagnostics.

Abstract: In a microcontroller (100) the command decoder (15) has access to at least one memory (14). The command decoder may thus be adapted to decode at least one conditional command, while the result of decoding the conditional command is dependent on the contents of said memory (14). The microcontroller according to the invention thus provides the possibility of considerably reducing the programming effort so that both the system performance and the code density can be significantly increased with a small additional number of hardware components.

Abstract: The present invention may relate generally to a circuit for converting a first digital signal having a first sample rate to second digital signal having a second sample rate. The circuit may comprise a cascaded integration-comb filter and a fractional sample rate converter. The fractional sample rate converter may be configured to perform fractional sample rate conversion. A first of the cascaded integrator-comb filter and the fractional sample rate converter may be configured to receive the first signal having the first sample rate and to generate a third digital signal having a third sample rate different from the first and second sample rates. A second of the cascaded integrator-comb filter and the fractional sample rate converter may be configured to receive the third signal having the third sample rate and to generate the second signal having the second sample rate.

Abstract: Biological materials in a mixture of substances are separated, detected or quantified using magnetic spherically shaped cross-linked polyvinyl alcohol (PVAL) polymer particles ranging in size from 1 to 10 &mgr;m. The particles containing a coupled ligand are used to bind a biological material in a mixture of substances, and the particles containing bound biological material are isolated from the mixture. The particles are prepared by dispersing a magnetic colloid containing a magnetic material such as a ferromagnetic or superparamagnetic substance in an aqueous solution of polyvinyl alcohol containing reactive hydroxyl groups, adding the resultant mixture to an organic phase containing a mixture of at least two emulsifiers, and adding a water-soluble cross-linking agent such as a dialdehyde that reacts with the hydroxyl groups of polyvinyl alcohol to form the polymer particles.

Abstract: A digital microelectronic circuit comprises a clocked data-processing unit (1) and a converting unit (2) which reads in data present at the output of the data-processing unit, performs a predetermined converting operation on the data and passes on the converted data. The converting unit is realized in an asynchronous logic circuit, such that the period of time for performing the converting operation is shorter than the shortest time interval to the next change of the data present at the output of the data-processing unit. In this way, fast, serial synchronous processes can be parallelized from the point of view of the slow synchronous system in synchronous systems which are slow relative thereto by using asynchronous logics, without a further high-frequency clock system being required.

Abstract: In a microcontroller (100) the command decoder (15) has access to at least one memory (14). The command decoder may thus be adapted to decode at least one conditional command, while the result of decoding the conditional command is dependent on the contents of said memory (14). The microcontroller according to the invention thus provides the possibility of considerably reducing the programming effort so that both the system performance and the code density can be significantly increased with a small additional number of hardware components.

Abstract: The invention relates to magnetic, spherical PVAL particles produced through suspension of a polymer phase containing magnetic colloids in a vegetable oil phase containing a special emulsifier mixture. Particles with a particle size of 1-8 &mgr;m are obtained which can chemically bind ligands. The carriers can be used to isolate and detect biomolecules, cells, antibodies and nucleic acids.

Abstract: Spherically shaped polyvinyl alcohol (PVAL) polymer particles are prepared encapsulating a magnetic colloid that provides the particles with magnetic properties for use in binding biomolecules. The particles have a size of 1-10 &mgr;m that makes them particularly suitable for use in cell separation/sorting, cleaning biosubstances in suspension and diagnostic assays. The particles are prepared by dispersing a magnetic colloid containing a magnetic material such as a ferromagnetic or superparamagnetic substance in an aqueous solution of polyvinyl alcohol containing reactive hydroxyl groups, adding the resultant mixture to an organic phase containing a mixture of at least two emulsifiers, and adding a water-soluble cross-linking agent such as a dialdehyde that reacts with the hydroxyl groups of polyvinyl alcohol to form the polymer particles. The emulsifiers are miscible in the polyvinyl alcohol solution, and at least one emulsifier is semi-hydrophilic and at least one emulsifier is lipophilic.

Abstract: To reduce the data in a video-server (SER), a compression of the video data of a video film is performed by coding according to the interframe method (K1). In addition, the video data of predetermined individual video pictures are coded according to the intraframe method (K2), and are stored (MEMO) as entry points parallel to the corresponding interframe-coded video data. When the video film is transmitted, only the interframe-coded video data are transmitted. In response to a request for fast forward or fast backward mode only, the video data of the entry point are transmitted intraframe-coded, and all subsequent video pictures are transmitted interframe-coded.

Abstract: A (BA) for picture and speech information.The video-telephone answering set (BA) stores only particular, essential single pictures, preferably in synchronism with the speech, in a storage means (HS). By suitable signalling, the caller can determine the single pictures to be stored. For the storage means (HS), a semiconductor memory is proposed.

Abstract: A nuclear magnetic resonance spectrometer comprises a sample holder being arranged in a constant magnetic field of a predetermined direction. The sample holder comprises a rotor adapted to receive a sample under investigation. The rotor is arranged to rotate the sample about a first axis being inclined to the predetermined direction at an acute angle of, preferably, 54.7.degree.. For heating up the rotor, a laser is provided emitting a laser beam which is directed upon a surface of the rotor. The laser beam is adjustable in intensity by means of a control device.

Abstract: A process and a device for metal spinning a blank into a formed part, especially into a vessel bottom, are described, which can be used for forming materials including materials which are difficult to deform, with high dimensional accuracy and/or high degrees of deformation. For attaining this object, the blank is clamped on its circumference and forced freely, i.e. without using a spinning chuck, into a clearance by means of a motion-controlled spinning tool until its finished dimension is reached.