Abstract: The invention relates to a gas supply apparatus (21) having a shaft (23) which is rotatably mounted in a housing (22) using a gas bearing assembly (18) that is temperature-controlled with dispensing gas, and comprising a gas temperature-control device. In order to improve the gas supply apparatus (21) in respect of its manufacturing process and/or its functions, the gas temperature-control device is combined with a liquid temperature-control device (40) in an annular space (33) of the gas supply apparatus (21).

Abstract: A scaling element including a filled polymeric layer including a polymer component including a polyvinylchloride resin and at least one ethylene vinyl acetate copolymer and at least one inorganic filler. The sealing element can be used as a waterbar or as a waterproofing membrane, to a method for scaling a joint between two sections of concrete, to a method for waterproofing a substrate, and to a method for producing a sealing element.

Abstract: The invention relates to a gas supply apparatus (21) having a shaft (23) which is rotatably mounted in a housing (22) using a gas bearing assembly (18) that is temperature-controlled with dispensing gas, and comprising a gas temperature-control device. In order to improve the gas supply apparatus (21) in respect of its manufacturing process and/or its functions, the gas temperature-control device is combined with a liquid temperature-control device (40) in an annular space (33) of the gas supply apparatus (21).

Abstract: A macro-synthetic fiber includes three or more partially fused filaments made of a polymer composition including at least one polypropylene, wherein the fiber has a multi-lobal cross-sectional shape with three or more lobes. A method produces macro-synthetic fibers, a cementitious material includes a binder and macro-synthetic fibers, and a method for forming a concrete surface uses a concrete mixture modified with the macro-synthetic fibers.

Abstract: The present invention relates to the extrusion of polymer compositions based on polyvinylchloride (PVC) as a semifinished PVC product, in particular as pellets, and in particular to a method in which homogeneous polymer compositions with an elongation at break of 0 to 270%, a tensile strength of at least 1 N/mm2 and a degree of gelation of 5 to 80% are produced by using a specific energy input SEI of 0.03 to 0.09 kWh/kg. The method according to the invention is expediently conducted by a plasticizer being added in a number of portions to the non-compounded polyvinylchloride and mixed in with it. The method according to the invention thereby offers a quick and easy possible way of producing semifinished plasticized PVC products, in particular as pellets, the production of which only requires a single processing device in the form of an extruder.

Abstract: The extrusion of polymer compositions based on polyvinyl chloride (PVC) and in particular to a method in which polymer compositions are produced that have an elongation at break of at least 200%, a tensile strength of at least 10 N/mm2 with a specific energy input SEI of 0.03 to 0.20 kWh/kg and in particular 0.04 to 0.16 kWh/kg. The method is expediently carried out such that a plasticizer is added in a plurality of portions to the non-composed polyvinyl chloride and mixed into said polyvinyl chloride. The method thereby offers a fast and simple possibility of producing products from finished soft PVC, the production of said products requiring only a single processing device in the form of an extruder.

Abstract: A digital wireless audio transmission system having a wireless receiving unit for wirelessly receiving a high-frequency signal. An HF analysis unit analyzes the received high-frequency data, detects errors in the transmission within a time window, and outputs the received data and first items of information in respect of the detected errors. A decoding unit converts/decodes the received high-frequency data into audio data. An error detection unit checks errors in the conversion of the decoding unit within a previously established time window and outputs second items of information in respect of errors during decoding of the received high-frequency data. An error rate is determined based on the first and second items of information. If the error rate exceeds a first threshold value then no audio signal is outputted. Only if the error rate falls below a second value, lower than the first value, is an audio output is then again effected.

Abstract: A digital audio transmission system, in particular a wireless microphone or wireless pocket transmitter system. The audio transmission system has at least one wireless transmitter and at least one wireless receiver. The wireless transmitter has an analog input, a digitally adjustable input potentiometer for adjusting the input gain, an analog/digital converter for converting the analog signals into digital signals, a digital signal processing unit for performing digital signal processing, and a digital or a digitally adjustable output potentiometer for adjusting the output gain. The digital signal processing unit is adapted to adjust the gain of the digital input potentiometer and/or the digital output potentiometer in such a way that the dynamic range of the analog/digital converter is optimally utilized.

Abstract: The extrusion of polymer compositions based on polyvinyl chloride (PVC) and in particular to a method in which polymer compositions are produced that have an elongation at break of at least 200%, a tensile strength of at least 10 N/mm2 with a specific energy input SEI of 0.03 to 0.20 kWh/kg and in particular 0.04 to 0.16 kWh/kg. The method is expediently carried out such that a plasticiser is added in a plurality of portions to the non-composed polyvinyl chloride and mixed into said polyvinyl chloride. The method thereby offers a fast and simple possibility of producing products from finished soft PVC, the production of said products requiring only a single processing device in the form of an extruder.

Abstract: The present invention relates to the extrusion of polymer compositions based on polyvinylchloride (PVC) as a semifinished PVC product, in particular as pellets, and in particular to a method in which homogeneous polymer compositions with an elongation at break of 0 to 270%, a tensile strength of at least 1 N/mm2 and a degree of gelation of 5 to 80% are produced by using a specific energy input SEI of 0.03 to 0.09 kWh/kg. The method according to the invention is expediently conducted by a plasticizer being added in a number of portions to the non-compounded polyvinylchloride and mixed in with it. The method according to the invention thereby offers a quick and easy possible way of producing semifinished plasticized PVC products, in particular as pellets, the production of which only requires a single processing device in the form of an extruder.

Abstract: A composition including, as polymer basis: about 40 to 75% by weight of at least one polypropylene-based elastomer; and about 25 to 60% by weight of at least one random polypropylene copolymer.

Abstract: A digital wireless audio transmission system having a wireless receiving unit for wirelessly receiving a high-frequency signal. An HF analysis unit analyzes the received high-frequency data, detects errors in the transmission within a time window, and outputs the received data and first items of information in respect of the detected errors. A decoding unit converts/decodes the received high-frequency data into audio data. An error detection unit checks errors in the conversion of the decoding unit within a previously established time window and outputs second items of information in respect of errors during decoding of the received high-frequency data. An error rate is determined based on the first and second items of information. If the error rate exceeds a first threshold value then no audio signal is outputted. Only if the error rate falls below a second value, lower than the first value, is an audio output is then again effected.

Abstract: A digital audio transmission system, in particular a wireless microphone or wireless pocket transmitter system. The audio transmission system has at least one wireless transmitter and at least one wireless receiver. The wireless transmitter has an analog input, a digitally adjustable input potentiometer for adjusting the input gain, an analog/digital converter for converting the analog signals into digital signals, a digital signal processing unit for performing digital signal processing, and a digital or a digitally adjustable output potentiometer for adjusting the output gain. The digital signal processing unit is adapted to adjust the gain of the digital input potentiometer and/or the digital output potentiometer in such a way that the dynamic range of the analog/digital converter is optimally utilized.

Abstract: A method of modelling microphone characteristics of a target microphone is provided. An impulse response of target microphones is measured over different angles. A signal conditioning on the measurement data is performed. The spatial response based on a spatial response matching algorithm is matched and filter parameters and/or model parameters are determined.

Abstract: A composition including, as polymer basis: about 40 to 75% by weight of at least one polypropylene-based elastomer; and about 25 to 60% by weight of at least one random polypropylene copolymer.

Abstract: There is provided an electronic device comprising an FPGA unit (100), a first and a second memory (210, 220) for storing boot data for the FPGA unit and a digital potentiometer (300) for storing a first and a second setting. In the first setting of the potentiometer the first memory (210) is coupled to the FPGA unit (100) and in the second setting of the potentiometer the second memory (220) is coupled to the FPGA unit (100) for booting.

Abstract: The present invention concerns a feed device for feeding a microphone with a dc voltage. The feed device has first, second and third terminals (a, b, c), a resistor arrangement having at least a one resistor (R1-R3) and a dc voltage source (11) for providing a feed voltage. In that case the resistor arrangement is disposed between the dc voltage source (11) and the first and second terminals (a, b). In addition the feed device has a measuring device and a control device (4). The measuring device detects a dc voltage between the first and second terminals and the third terminal, and the control device (4) reduces or increases the ohmic resistance of the resistor arrangement and the feed voltage of the dc voltage source (11).

Abstract: Provided is a digital microphone having a power supply. In this case the power supply is configured so as to provide a P48 V phantom power.

Abstract: There is provided an electronic device comprising an FPGA unit (100), a first and a second memory (210, 220) for storing boot data for the FPGA unit and a digital potentiometer (300) for storing a first and a second setting. In the first setting of the potentiometer the first memory (210) is coupled to the FPGA unit (100) and in the second setting of the potentiometer the second memory (220) is coupled to the FPGA unit (100) for booting.

Abstract: The present invention concerns a feed device for feeding a microphone with a dc voltage. The feed device has first, second and third terminals (a, b, c), a resistor arrangement having at least a one resistor (R1-R3) and a dc voltage source (11) for providing a feed voltage. In that case the resistor arrangement is disposed between the dc voltage source (11) and the first and second terminals (a, b). In addition the feed device has a measuring device and a control device (4). The measuring device detects a dc voltage between the first and second terminals and the third terminal, and the control device (4) reduces or increases the ohmic resistance of the resistor arrangement and the feed voltage of the dc voltage source (11).