Patents
Recent Submissions
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Finite-Alphabet Beamforming for Multi-Antenna Wideband Systems
(2021)Finite-alphabet beamforming for multi-antenna wideband systems is provided. The combination of massive multi-user multiple-input multiple-output (MU-MIMO) technology and millimeter-wave (mmWave) communication enables unprecedentedly high data rates for radio frequency (RF) communications. In such systems, beamforming must be performed at extremely high rates over hundreds of antennas. For example, spatial equalization applies beamforming ...Patent -
Systems and methods for saving battery life in a sensor tag for tools
(2021)A method includes measuring raw sensor information of a tool over a period of time with a sensor tag coupled to an external surface of the tool. The method also includes determining one or more events of the tool based on the raw sensor information and advertising a beacon signal at pre-determined intervals to locate a remote computing device. The method also includes wirelessly transmitting a history of the raw sensor information and/or ...Patent -
Systems and methods for retrofit wireless communications in cordless power tools
(2021)A power tool system includes a power tool configured to receive input power from a power device and includes a communications system within the power device, where the communications system comprises communications circuitry configured to receive power tool operating information. The power device is configured to gather power device operating information. The power tool system includes a retrofit tag removably coupled to an external surface ...Patent -
Systems and methods for calculating usage of power tools with a sensor tag
(2021)A method includes measuring raw sensor information of a tool over a period of time with a sensor tag coupled to an external surface of the tool. The method also includes determining one or more events of the tool based on the raw sensor information and calculating an aggregate time for each type of event from the one or more events determined over the period of time. The method also includes wirelessly transmitting a history of the one ...Patent -
Systems and methods for retrofit wireless communications in power tools
(2021)A power tool system includes a power tool configured to receive an input power via a cable from a power source. The power tool system also includes a communications system disposed within the power tool. The communications system includes communications circuitry configured to receive operating information related to the power tool. The power tool system includes a retrofit tag removably coupled to an external surface of a housing of the ...Patent -
DRIVE ARRANGEMENT
(2016)Drive arrangement (1) for a motor vehicle comprising an internal combustion engine (2) with at least one output shaft (3) providing a rotary motion (M), at least one wheel, in particular at least two wheels (4, 5), which is/are driven by said internal combustion engine (2), wherein said wheel or each of said wheels (4, 5) comprises a drive shaft (6, 7) to which said rotary motion (M) is provided in order to drive the respective wheel (4, ...Patent -
Systems and methods for detecting free fall in tools with a sensor tag
(2021)A method includes measuring raw sensor information of a tool over a period of time with a sensor tag coupled to an external surface of the tool. The method also includes determining one or more events of the tool based on the raw sensor information. The one or more events includes a free fall event of the tool. The method also includes calculating a free fall time and a free fall height based on the raw sensor information over the period ...Patent -
Vorschltgerät für eine Gasentladungslampe
(2008)Ein Vorschaltgerät für eine Gasentladungslampe 2 enthält im Lastkreis 1 eine Drossel und in einer Treiberschaltung 11 für einen Inverter 7 mit hochohmigen Schalterelementen 8 einen Transformator 14. Zur Verminderung des Schaltungsaufwands sollen die Primärwicklung Tp und die Sekundärwicklung Ts des Transformators 14 einen gemeinsamen Kern 16 haben.Patent -
Switching device with a cascode circuit
(2012)A switching device for switching a current between a first terminal (1) and a second terminal (2) comprises a cascode circuit having a series connection of a first semiconductor switch (M) and a second semiconductor switch (J), wherein the two semiconductor switches (M, J) are connected to each other by a common point (13), and the first semiconductor switch (M) is controlled by way of a first control input in accordance with a voltage ...Patent -
Vorschaltgerät für eine Gasentladungslampe und andere Leuchtmittel, bspw. LED
(2009)Die Erfindung betrifft ein Verfahren zur Ansteuerung eines Transistors eines Betriebsgeräts für Leuchtmittel, wobei - der Steuereingang des Transistors mittels eines Transformators galvanisch entkoppelt ist, wobei der Steuereingang mit der Sekundärseite des Transformators verbunden ist und die Sekundärseite des Transformators eine erste und eine zweite gegensinnig gepolte und in Serie geschaltete Wicklungen aufweist, und - das Ein- bzw. ...Patent -
JFET Series Connection
(2011)The invention relates to a switching device for switching a current between a first connection (1) and a second connection (2), comprising a series connection of at least two JFETs (J1-J6), of which a lowest JFET (J1) is connected to the first connection (1), or the lowest JFET (J1) is connected in a cascade circuit to the first connection (1) via a control switch (M), and at least one further JFET (J2-J5), which is connected in series ...Patent -
Vorrichtung zur Erzeugung von Hochenerergieimpulsen zur Bearbeitung von Gestein
(2012)Vorrichtung (1) zum Fräsen und Bohren von Gestein mit Hochenergiepulsen: Ein Pulskondensator (2) wird geladen und dessen Spannung über einen elektronischen Leistungsschalter (9) an eine Zündvorrichtung (14) und damit an die Primärwicklung (31) eines Zündtransformators (27) gelegt. Über dessen Sekundärwicklung (33) tritt sprungförmig eine hohe Spannung auf, welche eine Schwingung eines nachgeordneten, aus einer Serieninduktivität (28) und ...Patent -
Electromagnetic Gripping Device
(2021)The present invention will provide a device in which the gripping action is achieved by a compliant membrane manipulated by electromagnetic forces. The gripping force provided by the present invention is best suited for delicate objects, as it gently applies the gripping force necessary for displacement. This is accomplished through a chamber, a membrane, a plunger attached to the membrane, and a solenoid configured to manipulate the ...Patent -