Abstract: In an electronic apparatus comprising a circuit board supporting semiconductor components and traces or conductors for supplying electrical energy to the semiconductor components, and a connection arrangement by which the conductors are connected to a power supply cable, the circuit board being covered by an electrically insulating encapsulating layer, a molded frame part is mounted on the circuit board so as to cover the connection arrangement, the molded frame part having a circumferential edge structure which extends on one end into the encapsulating layer and at the other end projects above the encapsulating layer so as to create an interior space which, when the encapsulating layer is at least partially cured, is filled with additional encapsulating compound to form, after curing, a relatively thick protective layer over the wire or cable and conductor connecting area.

Abstract: In an electronic apparatus comprising a circuit board supporting semiconductor components and traces or conductors for supplying electrical energy to the semiconductor components, and a connection arrangement by which the conductors are connected to a power supply cable, the circuit board being covered by an electrically insulating encapsulating layer, a molded frame part is mounted on the circuit board so as to cover the connection arrangement, the molded frame part having a circumferential edge structure which extends on one end into the encapsulating layer and at the other end projects above the encapsulating layer so as to create an interior space which, when the encapsulating layer is at least partially cured, is filled with additional encapsulating compound to form, after curing, a relatively thick protective layer over the wire or cable and conductor connecting area.

Abstract: In a lighting apparatus, comprising a heatsink having at one side thereof a recess with at least one groove extending over the length of the heatsink, a plurality of lighting units are arranged in the groove or grooves oriented toward the opening of the recess for the emission of light therefrom and the frame is provided at the side opposite the opening with heatsink ribs, the lighting units in the groove or grooves being encapsulated by an encapsulating material added into the groove or grooves and being cured therein so as to be in direct contact with the groove walls and enclosing the lighting units at least up to the light emitting lenses thereof.

Abstract: In an electronic apparatus comprising a circuit board supporting semiconductor components and traces or conductors for supplying electrical energy to the semiconductor components, and a connection arrangement by which the conductors are connected to a power supply cable, the circuit board being covered by an electrically insulating encapsulating layer, a molded frame part is mounted on the circuit board so as to cover the connection arrangement, the molded frame part having a circumferential edge structure which extends on one end into the encapsulating layer and at the other end projects above the encapsulating layer so as to create an interior space which, when the encapsulating layer is at least partially cured, is filled with additional encapsulating compound to form, after curing, a relatively thick protective layer over the wire or cable and conductor connecting area.

Abstract: In a light emitting diode arrangement for lighting purposes, comprising a circuit board with at least one light generating semiconductor element disposed on the circuit board and conductors extending on the circuit board to the semiconductor element and being electrically connected to terminals of the semiconductor element, a light transmissive element is disposed on the circuit board and covers the semiconductor element and a flame resistant cover element is disposed below the light transmissive element and on top of the terminals to cover the terminals to provide for electrical and flame insulation thereof.

Abstract: Mobile phone terminal, having a transmitter stage, a receiver stage and an antenna switch-over and adapter stage which each have an arrangement of passive structural elements, which arrangement is assigned a multiplicity of electrostatic-mechanical microswitches or microrelays and which can be programmed by actuating a predetermined configuration of the microswitches or microrelays in, in each case, at least one functional parameter, in particular the frequency characteristic, and a programmable control unit.

Abstract: In an electronic apparatus comprising a circuit board supporting semiconductor components and traces or conductors for supplying electrical energy to the semiconductor components, and a connection arrangement by which the conductors are connected to a power supply cable, the circuit board being covered by an electrically insulating encapsulating layer, a molded frame part is mounted on the circuit board so as to cover the connection arrangement, the molded frame part having a circumferential edge structure which extends on one end into the encapsulating layer and at the other end projects above the encapsulating layer so as to create an interior space which, when the encapsulating layer is at least partially cured, is filled with additional encapsulating compound to form, after curing, a relatively thick protective layer over the wire or cable and conductor connecting area.

Abstract: In a light emitting diode arrangement for lighting purposes, comprising a circuit board with at least one light generating semiconductor element disposed on the circuit board and conductors extending on the circuit board to the semiconductor element and being electrically connected to terminals of the semiconductor element, a light transmissive element is disposed on the circuit board and covers the semiconductor element and a flame resistant cover element is disposed below the light transmissive element and on top of the terminals to cover the terminals to provide for electrical and flame insulation thereof.

Abstract: In a lighting apparatus, comprising a heatsink having at one side thereof a recess with at least one groove extending over the length of the heatsink, a plurality of lighting units are arranged in the groove or grooves oriented toward the opening of the recess for the emission of light therefrom and the frame is provided at the side opposite the opening with heatsink ribs, the lighting units in the groove or grooves being encapsulated by an encapsulating material added into the groove or grooves and being cured therein so as to be in direct contact with the groove walls and enclosing the lighting units at least up to the light emitting lenses thereof.

Abstract: A method is provided for frequency acquisition, particularly for initial frequency acquisition, pursuant to a known synchronization sequence for synchronizing a mobile communications device having a local oscillator with previously known transmit frequencies of a base station that transmit in a known channel raster with defined frequency points within a band, wherein the method includes the steps of determining the inband power of the known synchronization sequence via a sensor by scanning a frequency band, performing coarse determination of the local power maximum of the inband power and, thus, of the received carrier frequency over the scanned frequency band, producing a presumed channel frequency at which the base station is transmitting on the basis of knowledge of the channel raster of the transmit frequencies of the base station, performing fine determination of the received carrier frequency by comparison with the known synchronization sequence, and correcting the frequency deviation of the local oscil

Abstract: Mobile phone terminal, having a transmitter stage, a receiver stage and an antenna switch-over and adapter stage which each have an arrangement of passive structural elements, which arrangement is assigned a multiplicity of electrostatic-mechanical microswitches or microrelays and which can be programmed by actuating a predetermined configuration of the microswitches or microrelays in, in each case, at least one functional parameter, in particular the frequency characteristic, and a programmable control unit.

Abstract: A programmable mobile phone terminal includes a transmitter stage, a receiver stage, a switch-over and adapter stage having an arrangement of passive structural elements connected to a plurality of microswitches or microrelays programmed by a predetermined configuration in at least one functional parameter, and a control unit associated with the transmitter stage and the receiver stage, for setting predetermined values of the functional parameter.

Abstract: A method is provided for calibrating the frequency of an RF oscillator in a mobile part of a mobile communications device when the mobile part is first switched on, wherein the method includes the steps of: sampling a modulated carrier that is transmitted by a base station and has a prescribed frequency accuracy, such that scanning of the modulated carrier is performed via a frequency search algorithm with the modulated carrier being demodulated, a signal thus demodulated being compared in an evaluation and synchronization program via a correlation with a sequence known in advance, and a correlation peak in an output of the correlator being determined; determining a frequency error between the frequency of the RF oscillator in the mobile part of the mobile communications device and a known channel frequency of the base station by comparing the determined correlation peak of the output of the correlator with a channel raster, known in advance to the mobile communications device, of the base station; synchroniz

Abstract: A method and apparatus are provided for operating a transmission amplifier, particularly a mobile communications terminal, with the transmission amplifier being fed with a supply voltage and with any nonlinearity of the transmission amplifier being substantially compensated for via a predistortion unit for data values in an input data stream, wherein, at least at the start of transmission operation or after a considerable change in the operating parameters, the transmission amplifier is operated with a supply voltage which is of such a magnitude that the transmission amplifier operates in the linear region, and the supply voltage for the transmission amplifier is reduced to the extent to which a quality factor for the compensation for the nonlinearity of the transmission amplifier is increased by the predistortion unit.

Abstract: The invention relates to the filtering of a subfrequency band out of a receive frequency band, in which a carrier frequency for prefiltering the receive frequency band and an intermediate frequency for demodulating the frequency band filtered out during the prefiltering and for generating a frequency baseband are inserted into the signal propagation path, in which the desired subfrequency band is filtered out of the frequency baseband by a post-filtering and in which the carrier frequency, the intermediate frequency and the post-filtering are matched to one another.

Abstract: A method and apparatus are provided for operating a transmission amplifier, particularly a mobile communications terminal, with the transmission amplifier being fed with a supply voltage and with any nonlinearity of the transmission amplifier being substantially compensated for via a predistortion unit for data values in an input data stream, wherein, at least at the start of transmission operation or after a considerable change in the operating parameters, the transmission amplifier is operated with a supply voltage which is of such a magnitude that the transmission amplifier operates in the linear region, and the supply voltage for the transmission amplifier is reduced to the extent to which a quality factor for the compensation for the nonlinearity of the transmission amplifier is increased by the predistortion unit.

Abstract: A method is provided for calibrating the frequency of an RF oscillator in a mobile part of a mobile communications device when the mobile part is first switched on, wherein the method includes the steps of: sampling a modulated carrier that is transmitted by a base station and has a prescribed frequency accuracy, such that scanning of the modulated carrier is performed via a frequency search algorithm with the modulated carrier being demodulated, a signal thus demodulated being compared in an evaluation and synchronization program via a correlation with a sequence known in advance, and a correlation peak in an output of the correlator being determined; determining a frequency error between the frequency of the RF oscillator in the mobile part of the mobile communications device and a known channel frequency of the base station by comparing the determined correlation peak of the output of the correlator with a channel raster, known in advance to the mobile communications device, of the base station; synchroniz

Abstract: A method is provided for frequency acquisition, particularly for initial frequency acquisition, pursuant to a known synchronization sequence for synchronizing a mobile communications device having a local oscillator with previously known transmit frequencies of a base station that transmit in a known channel raster with defined frequency points within a band, wherein the method includes the steps of determining the inband power of the known synchronization sequence via a sensor by scanning a frequency band, performing coarse determination of the local power maximum of the inband power and, thus, of the received carrier frequency over the scanned frequency band, producing a presumed channel frequency at which the base station is transmitting on the basis of knowledge of the channel raster of the transmit frequencies of the base station, performing fine determination of the received carrier frequency by comparison with the known synchronization sequence, and correcting the frequency deviation of the local oscil

Abstract: The invention relates to a method for rapidly synchronizing communication stations belonging to mutually independent PLC networks without reducing the user data rate. According to said method, the respective communication stations transmit or receive basic information at respectively the same time with regard to a cycle of the network frequency of each PLC network that is assigned to the respective communication station. The information is respectively transmitted with the same regularity with regard to a cycle sequence of the network frequency of each PLC network that is assigned to the respective communication station.