Abstract: Various exemplary embodiments relate to a method and server for processing X-Maps with flexible tiles including receiving measurements of at least one characteristic of a transmission, determining two or more geographic areas of similar transmission conditions, and storing indications of the determined geographic areas and indications of at least one characteristic of at least one transmission in each area.

Abstract: An air conditioning system includes a compressor assembly having a housing and a valve. The housing generally encloses a discharge chamber and a suction chamber. The valve is operative for controlling the pressure differential between the discharge and suction chambers. The valve includes a body, a ball, spring, flange and a piston. The body has a first passage and a second passage in fluid communication with the first passage. The piston is slidably coupled to the body for axial movement between a closed position and an open position. The piston includes a hole for supporting the ball therein for movement with the piston between the closed position, wherein the ball engages the body to prevent fluid flow between the first and second passages, and the open position, wherein the ball is spaced apart from the body to allow fluid flow between the first and second passages.

Abstract: A method of triggering a decision of a wireless communication system on a handover and/or of triggering a handover by means of at least one trigger signal. Using a generic algorithm for triggering handover trigger signals. The algorithm uses generic parameters representing at least an aspect of the quality of service of a radio link. The method facilitates handovers in multi-RAT networks and decreases the signalling as part of the handover decision making is transferred to the terminal device.

Abstract: A cordless telecommunications system (CTS) with a base station (CTS-FP) and with at least one mobile station (MS) initialised at the base station (CTS-FP), for carrying out a process for transmitting operating parameters from a control centre (Z) of a superimposed telecommunications network (PLMN; PSTN, ISDN), which transmits operating parameters initially to the base station (CTS-FP) or to one of the mobile stations (MS) of the cordless telecommunications system (CTS) and then relays the operating parameters to as far as possible all initialised mobile stations or to the base station (CTS-FP) as well as to as far as possible all other initialised mobile stations (MS) is proposed. Thus, new operating parameters can easily be distributed centrally to one or more limited cordless telecommunications systems and can be activated.

Abstract: A cordless telecommunications system (CTS) with a base station (CTS-FP) and with at least one mobile station (MS) initialized at the base station (CTS-FP), for carrying out a process for transmitting operating parameters from a control centre (Z) of a superimposed telecommunications network (PLMN; PSTN, ISDN), which transmits operating parameters initially to the base station (CTS-FP) or to one of the mobile stations (MS) of the cordless telecommunications system (CTS) and then relays the operating parameters to as far as possible all initialized mobile stations or to the base station (CTS-FP) as well as to as far as possible all other initialized mobile stations (MS) is proposed. Thus, new operating parameters can easily be distributed centrally to one or more limited cordless telecommunications systems and can be activated.

Abstract: Wireless telecommunications systems with at least one base station and with mobile user terminals are known where radio signals are transmitted and received in different time and frequency states. Both on user channels as well as on signaling channels there are radio signals that are transmitted corresponding to the predicted frequency hopping sequence.

Abstract: A method for establishing a telecommunications link utilizing bursts in a digital radio network having at least one other digital radio network superposed thereon. The bursts of the two digital radio networks have the same bit structure but differ in a specific bit training sequence, and this training sequence of a burst is checked during the establishment of the telecommunications link. By processing only bursts with the training sequences of the desired digital radio network, erroneously received other bursts are filtered out and discarded.

Abstract: For use in digital optical telecommunication systems, optical semiconductor components are shown having a transition region for the expansion of the mode field of a light wave in order to reduce losses when coupling to an optical fiber or an optical waveguide of a supporting plate. An optical semiconductor component contains a deep ridged waveguide (RIDGE) with a cover layer (DS) disposed on a substrate (SUB.) The ridged waveguide (RIDGE) has a first (MQW) and second (BULK) waveguide cores, these being separated by a separating layer (SEP). The thickness of this separating layer increases in a transition region (UB1) along a longitudinal direction (L) of the ridged waveguide (RIDGE), thus increasing the vertical distance between the two waveguide centers (MQW, BULK).

Abstract: A process for fabricating multisegment ridge waveguides is disclosed which is self-aligning and avoids unnecessary masking and etching steps. The process essentially comprises five steps: removing, in a starting layer structure, a top layer (DS) on both sides of areas where segment transitions (ST) are to be formed; depositing a metal contact layer (KM); etching a desired ridge-waveguide structure (R); covering the entire area except the segment transition areas with photoresist; and removing the contact layer (KM) in the segment transition areas by a lift-off step, thus providing electrical separation between the individual segments.

Abstract: In a circuit (20) for use in controlling a battery-charging process and producing an output (S) which has one of two distinct levels (S1, S2), these levels are independently adjustable by adjusting variable resistors (R1, R2). Switching between the two levels is effected by transistors (T1, T2) in response to a varying input signal (X).The input signal (X) is derived from a hydrogen/oxygen recombinator (40, FIG. 4, not shown) with a thermoelectric transducer which produces an abrupt change in output when the battery is fully-charged. To ensure a gradual switch-over to a lower battery-charging rate, the output of the transducer is passed via an integrator (41) to the circuit (20). The switch means for one of the resistors (R2) may be omitted (FIG. 1 not shown).

Abstract: The battery charging system includes a generator, a rectifier system with main diodes and exciter diodes as well as two terminals (B+, D-) for battery charging, at least one terminal (D+) for consuming points, a voltage regulator (14) for a generator output voltage, a charging control light (16) and a fail-safe device (15) structured to indicate faults and for protection from excess voltages. The fail-safe device includes an additional voltage regulating device (17) connected electrically to the generator and a relay (27) connected with the additional voltage regulating device.

Abstract: An electrical heating arrangement for a motor vehicle comprises a heating resistor that is energizable directly by the power generator provided that within a network of consuming devices failure has been detected and also provided that essential elements of the network such as battery or engine temperature are within predetermined limits. Upon detection of a failure this error condition is optically indicated and the connection between the heating resistor and the generator is interrupted.

Abstract: A plurality of threshold switches or comparators, at least two and preferably five to seven are provided to compare actual generator output voltage (u.sub.g) with respect to various threshold levels derived from battery voltage, and normal and abnormal and highly abnormal or excessive voltage conditions. Actual generator voltage is sensed by providing a separate set of rectifiers (14) connected to the generator (10) and providing output voltage signals representative only of the magnetism of the field--remanent or excited--and generator speed, independently of loading and battery voltage, to permit monitoring actual operation of the generator in relation to the connected network and battery. One (76) of the threshold switches or comparators is provided to inhibit energization of the field winding by the voltage regulator (20) if the voltage of the generator, as sensed, exceeds a predetermined level (eg.

Abstract: Being proposed is a circuit for association with the regulator of an electrical generator, especially an AC generator, and serving to smooth the voltage supplied by the electric generator. The circuit includes a compensation device consisting of at least one active semiconductor switching element, usually a transistor, and so connected to the regulator input as a supplement thereto that the generator output voltage is smoothed by a compensation voltage whose own ripple or oscillatory component is in opposite phase to the generator voltage.In particular, the compensation circuit includes a voltage divider connected to the generator output voltage and having a tap which is connected via a capacitor to the control electrode of the transistor whose main conducting path is connected in parallel to a further voltage divider joined to receive the generator voltage as well as to supply the input voltage to the regulator.

Abstract: To protect the battery in an automotive electrical system against over-charging upon failure of the voltage regulator to control current flow through the field of an automotive alternator, the field current is conducted through an interruptable network element, for example a fuse or a relay controlled switch. A voltage sensing network, for example a Zener diode, is connected to control current flow through a controlling element, for example a thyristor, which provides either an auxiliary current to burn out the fuse or a control current to the relay coil to interrupt connection to the field if over-voltage has been sensed. Simultaneously, an indicator lamp can be energized to indicate malfunction of the voltage regulator.

Abstract: To permit elimination of separate exciter diodes of a vehicular three-phase alternator, and yet reliably ensure protection of the vehicular battery and provide an indication of discharge of the battery and hence possible failure of any excitation for the alternator, while additionally providing an indication of possible damage to the battery due to overvoltage conditions, the field of the alternator is separately excited from the battery through a voltage regulator connected to the main switch, and a low-voltage and high-voltage indicator is connected in parallel to the battery, preferably an LED triggered to illumination upon response of one of two threshold sensing circuits which sense undervoltage and overvoltage conditions of the battery beyond a predetermined voltage range.