Abstract: A brazed plate heat exchanger (10) comprising a stack of heat exchanger plates (12a, 12b) provided with a pattern comprising ridges (R) and grooves (G) to form plate interspaces (13a, 13b) for fluids to exchange heat. The heat exchanger plates are provided with port openings (O1-O4) forming inlet and outlet channels (14) for the first and second fluids, wherein at least one of the first and second heat exchanger plates is arranged with a skirt to form a chamber (17) between the port opening and the plate interspaces. The chamber (17) is open to the channel (14) through a gap between at least a free end portion of the skirt and the adjacent heat exchanger plate, and the gap varies around the circumference of the channel (14) and/or a cross section area of the chamber (17) varies around the circumference of the channel (14).

Abstract: Systems and methods for linearizing a radio system are disclosed. In some embodiments, a radio system comprises an antenna array, transmit branches comprising respective power amplifiers, a predistortion subsystem comprising predistorters for the transmit branches respectively, a receive antenna element, a transmit observation receiver having an input coupled to the receive antenna element, and an adaptor. The predistorters predistort respective transmit signals to provide predistorted transmit signals to the respective transmit branches for transmission via respective active antenna elements in the antenna array. The transmit observation receiver is operable to receive, via the receive antenna element, a combined receive signal due to coupling between the receive antenna element and the active antenna elements.

Abstract: Systems and methods for linearizing a radio system are disclosed. In some embodiments, a radio system comprises an antenna array, transmit branches comprising respective power amplifiers, a predistortion subsystem comprising predistorters for the transmit branches respectively, a receive antenna element, a transmit observation receiver having an input coupled to the receive antenna element, and an adaptor. The predistorters predistort respective transmit signals to provide predistorted transmit signals to the respective transmit branches for transmission via respective active antenna elements in the antenna array. The transmit observation receiver is operable to receive, via the receive antenna element, a combined receive signal due to coupling between the receive antenna element and the active antenna elements.

Abstract: Systems and methods for linearizing a radio system are disclosed. In some embodiments, a radio system comprises an antenna array, transmit branches comprising respective power amplifiers, a predistortion subsystem comprising predistorters for the transmit branches respectively, a receive antenna element, a transmit observation receiver having an input coupled to the receive antenna element, and an adaptor. The predistorters predistort respective transmit signals to provide predistorted transmit signals to the respective transmit branches for transmission via respective active antenna elements in the antenna array. The transmit observation receiver is operable to receive, via the receive antenna element, a combined receive signal due to coupling between the receive antenna element and the active antenna elements.

Abstract: A computer desk construction consisting of a desk top made up of multiple joined pieces that create a single continuous textured surface for use of a computer mouse or similar technologies, as well as adjustable legs, supportive framework, and net for cable management. The desktop joins to a framework and legs for support and stability for a user in a seated or standing position. The sectioning of parts results in smaller, lighter sections than conventional computer desks, dramatically reducing shipping and handling costs. The desk can also be easily disassembled for shipment or storage. Further, the desk incorporates a single continuous textured surface which serves to smoothly conceal the seams and to provide a soft, supportive surface in which users can operate a computer mouse or similar technology. The desk includes a plurality of slits in the single continuous textured surface and a concealed net for efficient cable management.

Abstract: A method of manufacturing at least one flange by first rotating a tubular element and two sheet elements with respect to one another until a radially enlarged portion and adjacent hub section have been formed on the tubular element. The sheet element is impregnated by a thermosetting resin. When the resin has cured, the radially enlarged portion is cut along a cut line, thereby also dividing the tubular element in two parts and generating at least a first flange having a first flange section and a first hub section. Optionally, a second flange having a second flange section and a second hub section, is generated. In a preferred embodiment, the cut line is arranged in the middle of the radially enlarged portion, whereby two similar flanges are generated.

Abstract: A method of manufacturing at least one flange by first rotating a tubular element and two sheet elements with respect to one another until a radially enlarged portion and adjacent hub section have been formed on the tubular element. The sheet element is impregnated by a thermosetting resin. When the resin has cured, the radially enlarged portion is cut along a cut line, thereby also dividing the tubular element in two parts and generating at least a first flange having a first flange section and a first hub section. Optionally, a second flange having a second flange section and a second hub section, is generated. In a preferred embodiment, the cut line is arranged in the middle of the radially enlarged portion, whereby two similar flanges are generated.

Abstract: A method of manufacturing at least one flange (1a, 1b) by first rotating a tubular element (30) and two sheet elements (10, 20) with respect to one another until a radially enlarged portion (11) and adjacent hub section (21a,b) have been formed on the tubular element. The sheet element is impregnated by a thermosetting resin. When the resin has cured, the radially enlarged portion (11) is cut along a cut line (S), thereby also dividing the tubular element (30) in two parts (30a, 30b) and generating at least a first flange (1a) having a first flange section (11a) and a first hub section (21a). Optionally, a second flange (1b) having a second flange section (11b) and a second hub section (21b), is generated. In a preferred embodiment, the cut line (S) is arranged in the middle of the radially enlarged portion (11), whereby two similar flanges (1a, 1b) are generated.

Abstract: In a radio system node, such as a Base Transceiver Station (BTS), a compensation unit is provided to convert information about downlink signal strength in a measurement report received from a mobile station when the signal to the mobile station is transmitted using several co-channel signals transmitted simultaneously in the same time slot and at the same frequency.

Abstract: A receiver is provided that is configured to estimate the symbol constellation of a signal modulated using a quaternary symbol constellation where data is transmitted to two mobile stations multiplexed on a shared channel comprising two branches, where the branches correspond to the real and imaginary parts of one complex-valued baseband signal. The receiver is configured to demodulate the modulated signal using the training sequences from both sub-channels.

Abstract: In a method and a transmitter data is transmitted to two mobile stations sharing the same frequency band and the same timeslot. The data is modulated using a quaternary symbol constellation. Further, the data is transmitted to two mobile stations multiplexed on a shared channel comprising two branches and the transmission power for the transmitted data is set in response to the relative gain of the two branches. Hereby, the total system interference is reduced. The method and transmitter further allows for a cellular radio system individual power control loops for the two sub-channels when the system uses MUROS.

Abstract: A method of manufacturing at least one flange (1a, 1b) by first rotating a tubular element (30) and two sheet elements (10, 20) with respect to one another until a radially enlarged portion (11) and adjacent hub section (21a,b) have been formed on the tubular element. The sheet element is impregnated by a thermosetting resin. When the resin has cured, the radially enlarged portion (11) is cut along a cut line (S), thereby also dividing the tubular element (30) in two parts (30a, 30b) and generating at least a first flange (1a) having a first flange section (11a) and a first hub section (21a). Optionally, a second flange (1b) having a second flange section (11b) and a second hub section (21b), is generated. In a preferred embodiment, the cut line (S) is arranged in the middle of the radially enlarged portion (11), whereby two similar flanges (1a, 1b) are generated.

Abstract: In a method of enabling model order selection for joint channel synchronization and noise covariance estimation of at least one received signal in a wireless communication network, generating S0 a spatially and temporally stacked signal model by stacking successive samples of temporally adjacent received signal vectors and corresponding training vectors, computing S1 a noise variance matrix for each hypothesized synchronization position, channel length and stacking order, based on the stacked training symbols: determining S2 a best synchronization position for the received signal, based on the stacked training vectors, by jointly determining the best synchronization position for the received signal and estimating a channel length and a stacking order for said signal model based on the stacked training vectors.

Abstract: A receiver is provided that is configured to estimate the symbol constellation of a signal modulated using a quaternary symbol constellation where data is transmitted to two mobile stations multiplexed on a shared channel comprising two branches, where the branches correspond to the real and imaginary parts of one complex-valued baseband signal. The receiver is configured to demodulate the modulated signal using the training sequences from both sub-channels.

Abstract: In a radio system node, such as a Base Transceiver Station (BTS), a compensation unit is provided to convert information about downlink signal strength in a measurement report received from a mobile station when the signal to the mobile station is transmitted using several co-channel signals transmitted simultaneously in the same time slot and at the same frequency.

Abstract: In a method and a transmitter data is transmitted to two mobile stations sharing the same frequency band and the same timeslot. The data is modulated using a quaternary symbol constellation. Further, the data is transmitted to two mobile stations multiplexed on a shared channel comprising two branches and the transmission power for the transmitted data is set in response to the relative gain of the two branches. Hereby, the total system interference is reduced. The method and transmitter further allows for a cellular radio system individual power control loops for the two sub-channels when the system uses MUROS.

Abstract: In a method of enabling model order selection for joint channel synchronization and noise covariance estimation of at least one received signal in a wireless communication network, generating S0 a spatially and temporally stacked signal model by stacking successive samples of temporally adjacent received signal vectors and corresponding training vectors, computing S1 a noise variance matrix for each hypothesized synchronization position, channel length and stacking order, based on the stacked training symbols: determining S2 a best synchronization position for the received signal, based on the stacked training vectors, by jointly determining the best synchronization position for the received signal and estimating a channel length and a stacking order for said signal model based on the stacked training vectors.

Abstract: There is provided an automatic collision management system for a vehicle (10), the vehicle (10) including one or more brakes operable when applied to decelerate the vehicle (10). The automatic collision management system includes a sensor arrangement (100) operable to detect closing velocities of one or more oncoming objects substantially in a direction of travel of the vehicle (10), and a processing arrangement (50a, 50b) for receiving information from the sensor arrangement (100) indicative of the detected closing velocities. The processing arrangement (50a, 50b) is operable when the vehicle (10) is travelling below a threshold speed to automatically selectively apply the one or more brakes to decelerate the vehicle (10) in response to the information received from the sensor arrangement (100) for avoiding or mitigating a crash of the vehicle (10) with the one or more oncoming objects.

Abstract: Profiled strip intended to be attached to the front edge of a shelf, which shelf is made with a row of openings next to this edge. The profiled strip has a mounting part with an upper flange and a lower flange adapted to receive between them a front edge portion of the shelf and a part made as a label-holder pocket or for supporting separate label-holder pockets. The upper flange of the mounting part is adapted to bear against the upper surface of the shelf and is made with a series of teeth along its rear edge. These teeth form such an angle with the rest of the flange that, when the profiled strip is mounted on a shelf provided with openings, they will project down into these openings and fix the profiled strip to the shelf.