Patent application number | Description | Published |
20100013709 | Antenna Array and A Method For Calibration Thereof - An antenna array ( | 01-21-2010 |
20110204934 | SYSTEM, APPARATUS AND METHOD FOR CALIBRATING A DELAY ALONG A SIGNAL PATH - The present disclosure teaches a calibration system, a calibration apparatus and a method for calibrating a signal path and a method for calibrating a delay. The calibration system comprises an injector, a calibration signal generator, a correlator, a detector unit, a polygon former and a pattern classifier unit. The calibration system is adapted to calculate a fraction of a delay from a set of polygons. The delay is being accumulated along a signal path. The fraction of the delay is indicative of an accuracy of the delay at a fine sampling rate as if the delay was measured at the fine sampling rate being an integer multiple of the coarse sampling rate. The method for calibrating of the signal path uses a calibration signal sampled at a coarse sampling rate. Correlation techniques are used in order to detect a fraction of the delay from a set of polygons. | 08-25-2011 |
20110299430 | ACTIVE ANTENNA ARRAY AND METHOD FOR RELAYING RADIO SIGNALS WITH SYNCHRONOUS DIGITAL DATA INTERFACE - The present disclosure relates to an active antenna array for a mobile communications network. The active antenna comprises a base band unit coupled to a base station, a plurality of transceiver units and at least one link. The plurality of transceiver units is terminated by at least one antenna element. The at least one link couples individual ones of the plurality of transceiver units to the base band unit | 12-08-2011 |
20110299456 | ACTIVE ANTENNA ARRAY AND METHOD FOR RELAYING RADIO SIGNALS - The present disclosure teaches an active antenna array for a mobile communications network. The active antenna array comprises a base band unit, a plurality of transceiver units terminated by at least one antenna element; and at least one link. The link couples the individual ones of the plurality of transceiver units to the base band unit. The link is a digital link and is adapted to relay a payload signal at a selectable payload rate. The digital link is further adapted to relay a timing signal at a fixed timing rate, when the timing signal is embedded in the payload at a selectable payload rate. The present disclosure further teaches a method for relaying radio signals and a computer program for manufacturing the active antenna array and for executing the method. | 12-08-2011 |
20120093209 | CREST FACTOR REDUCTION METHOD AND CIRCUIT FOR A MULTI-CARRIER SIGNAL - A method for crest factor reduction of a multi-carrier signal is disclosed. The method comprises determining a plurality of signal values of a plurality of single-carrier signals prior to combining the plurality of single-carrier signals to form the multi-carrier signal. The method further comprises performing a joint potential peak detection on the plurality of signal values, producing a temporal position of a possible peak in the multi-carrier signal, generating a plurality of cancellation pulses, and injecting the plurality of cancellation pulses to the plurality of single-carrier signals at temporal injection positions which correspond to the temporal position of the possible peak in the multi-carrier signal. The single-carrier signals are then combined to form a crest factor reduced multi-carrier signal. A corresponding circuit and corresponding computer program product useable during manufacture and operation are also disclosed. | 04-19-2012 |
20120093210 | CREST FACTOR REDUCTION FOR A MULTICARRIER-SIGNAL WITH SPECTRALLY SHAPED SINGLE-CARRIER CANCELATION PULSES - A method for crest factor reduction of a multi-carrier signal is disclosed. The multi-carrier signal comprises a plurality of single-carrier signals, each single-carrier signal having signal-specific spectral properties. The method comprises identifying a peak in the multi-carrier signal and a time of occurrence of the peak and generating a plurality of cancellation pulses depending on the time of occurrence of the peak. A particular cancellation pulse of the plurality of cancellation pulses is associated with a particular single-carrier signal and cancellation pulse-specific spectral properties of the particular cancellation pulse substantially match the signal-specific spectral properties of the associated particular single-carrier signal. The method further comprises combining the plurality of cancellation pulses to form a combined cancellation pulse and applying the combined cancellation pulse to the multi-carrier signal to reduce the peak. A corresponding circuit and corresponding computer program products useable during manufacture and operation are also disclosed. | 04-19-2012 |
20120196545 | ANTENNA ARRAY AND METHOD FOR SYNTHESIZING ANTENNA PATTERNS - An antenna array having a plurality of antenna elements is disclosed. The antenna array comprises: a plurality of transceiver modules; an active antenna element subset of the plurality of antenna elements, wherein the active antenna element subset comprises at least one active antenna element being actively coupled to an associated transceiver module of the plurality of transceiver modules; and at least one passively combined sub-array of at least two antenna elements of the plurality of antenna elements. A method for generating antenna patterns with the antenna array is also disclosed. | 08-02-2012 |
20150249291 | ANTENNA ARRAY AND METHOD FOR SYNTHESIZING ANTENNA PATTERNS - An antenna array having a plurality of antenna elements is disclosed. The antenna array comprises: a plurality of transceiver modules; an active antenna element subset of the plurality of antenna elements, wherein the active antenna element subset comprises at least one active antenna element being actively coupled to an associated transceiver module of the plurality of transceiver modules; and at least one passively combined sub-array of at least two antenna elements of the plurality of antenna elements. A method for generating antenna patterns with the antenna array is also disclosed. | 09-03-2015 |
Patent application number | Description | Published |
20080261155 | Metallic Air-Bridges - A lithographic method of producing an air-bridge ( | 10-23-2008 |
20080277645 | Ferromagneic Influence on Quantum Dots - A semiconductor magnetic body comprises a layer ( | 11-13-2008 |
20090009914 | Semiconductor Device Using Locating and Sign of the Spin of Electrons - A spin-valve structure is provided, illustrating the layer structure used for the magnetic tunnel junction, by a method comprising the steps of providing a substrate, growing a ferromagnetic layer on the substrate, growing a tunnel barrier layer on the ferromagnetic layer, providing a first non-magnetic metallic contact on the ferromagnetic layer and providing a second non-magnetic metallic contact for the single ferromagnetic layer. Beside such a single sided structure a double-sided structure can be provided having e.g. a Ga0.94Mn0.06As/undoped GaAs/Ga0.94Mn0.06As trilayer structure on top of a semi-insulating GaAs substrate and an undoped LT-GaAs buffer layer. There is an inner square contact and a surrounding electrical back contact. This sample structure makes it possible to perform two-probe magnetoresistance measurements through both ferromagnets and the GaAs tunnel barrier. The resistance of the device is fully dominated by the vertical tunneling process through the tunnel barrier. | 01-08-2009 |
20090114945 | SPINTRONICS COMPONENTS WITHOUT NON-MAGNETIC INTERPLAYERS - A spintronics element comprises two ferromagnetic layers without a non-magnetic interlayer between them. The two ferromagnetic layers may be independently switched by various means such as but not limited to applying one or more external magnetic fields, and/or employing current induced switching, and/or applying optical spin-pumping. | 05-07-2009 |