Patents Represented by Attorney, Agent or Law Firm Herbert L. Lerner
  • Patent number: 6388271
    Abstract: The power semiconductor components in prior art high-voltage smart power ICs frequently take up more than half of the total chip surface. To be able to produce the ICs more economically, the material consumption must be reduced, and hence, in particular, the surfaces of the drift zones of the power semiconductor components must be made significantly smaller. Based on the premise that the electrical breakdown field strength of silicon carbide is approximately ten times higher than that of silicon, the parts of a semiconductor component which receive voltage are integrated in silicon carbide. The drift zone can be made much smaller for the same reverse voltage. In an SiC MOS transistor with lateral current conduction, the SiC layer, which is only approximately 1-2 &mgr;m thick and is covered by an SiO2 layer, is arranged so as to be dielectrically insulated on an Si substrate. Two n+-doped SiC regions are used as source and drain contacts.
    Type: Grant
    Filed: March 10, 2000
    Date of Patent: May 14, 2002
    Assignee: Siemens Aktiengesellschaft
    Inventors: Heinz Mitlehner, Michael Stoisiek
  • Patent number: 6386004
    Abstract: In a laundry drum, a liquid diverter includes a driver having a driver interior and a run-off ramp therein. The driver interior receives liquid scooped and lifted by the drum during rotation thereof. The driver discharges scooped liquid in its lifted position into the drum interior. The run-off ramp is oriented horizontally or has a descending gradient when the drum rotation axis is orientated in a direction deviating from horizontal and when the drum is in a rotary position in which the driver is in its highest position, and thereby, permits, in all of the drum's rotation directions, a flow of scooped liquid on the run-off ramp in a direction of a rising part of the rotation axis when in the driver's lifted position. The liquid is conducted into only part of the drivers in a case of low liquid level as a result of the inclination.
    Type: Grant
    Filed: June 22, 2001
    Date of Patent: May 14, 2002
    Assignee: BSH Bosch und Siemens Hausgerate GmbH
    Inventor: Matthias Salein
  • Patent number: 6388287
    Abstract: The invention relates to a switching transistor presenting reduced switching losses. In the switching transistor, output capacitance is very high when drain/source voltages are low. As the drain/source voltage increases, the capacitance falls to such low values that the energy stored in the transistor becomes very low.
    Type: Grant
    Filed: March 12, 2001
    Date of Patent: May 14, 2002
    Assignee: Infineon Technologies AG
    Inventors: Gerald Deboy, Franz Hirler, Martin März, Hans Weber
  • Patent number: 6388944
    Abstract: A memory chip with a short data access time limits the propagation time of a bit on local data line strips which are far away from output amplifiers by centering switches with respect to a center of the cell array strips, wherein the switches are junction points between local data lines and main data lines.
    Type: Grant
    Filed: January 31, 2001
    Date of Patent: May 14, 2002
    Assignee: Infineon Technologies AG
    Inventors: Peter Schrögmeier, Stefan Dietrich, Torsten Partsch, Thomas Hein, Patrick Heyne, Thilo Marx
  • Patent number: 6387773
    Abstract: A method for fabricating trenches for storage capacitors of DRAM semiconductor memories by plasma etching semiconductor substrates, includes fabricating a partial trench region with a cross-sectional profile deviating from essentially constant toward a larger cross-sectional profile. A surface of the partial trench region is passivated and the etching/passivating step is continued periodically, in order to fabricate further partial trench regions, until a predetermined overall trench depth has been reached.
    Type: Grant
    Filed: June 30, 2000
    Date of Patent: May 14, 2002
    Assignee: Infineon Technologies AG
    Inventor: Manfred Engelhardt
  • Patent number: 6389086
    Abstract: A digital circuit has a signal input terminal and a signal output terminal. The digital circuit additionally has a logic circuit unit, whose input is connected to the signal input terminal and whose output is connected to the signal output terminal via a switching element. Furthermore, it has a filter unit, whose input is connected to the signal input terminal and whose output is connected to a control input of the switching element. The filter unit serves for suppressing glitches on a digital signal present at its input.
    Type: Grant
    Filed: March 8, 2000
    Date of Patent: May 14, 2002
    Assignee: Infineon Technologies AG
    Inventors: Thoai-Thai Le, Eckhard Brass, Markus Biebl
  • Patent number: 6389282
    Abstract: An operation and maintenance system for a mobile communications network allows to execute a network configuration centrally from a maintenance device of an operation and maintenance center and allows to execute a network configuration peripherally with the aid of a local maintenance terminal which can be connected to a network device of a base station subsystem of the mobile communications network. An access table contains, for each operator authorized for access to the operation and maintenance system, a name entry, a specific operator password to be used by the operator for access via a local maintenance terminal, and information on the extent of the operator's access authorization. The access table is stored in the operation and maintenance center.
    Type: Grant
    Filed: January 3, 2000
    Date of Patent: May 14, 2002
    Assignee: Siemens Aktiengesellschaft
    Inventor: Lucian Hirsch
  • Patent number: 6381945
    Abstract: A gas turbine and a method for operating a gas turbine includes a combustion chamber, a turbine having rows of blades, an air compressor, a combustion-air line for feeding compressed air into the combustion chamber, a fuel supply unit, at least one fuel line, at least one cooling-air line. Some of the blades have an interior defining cavities whereby first cavities direct at least a portion of fuel to the combustion chamber through the first cavities at least in a section of the blades, thereby preheating the fuel before being introduced into the combustion chamber. The system defined by the first cavities and the section of the blades is closed relative to an interior of the gas turbine. Second cavities fluidically connect to the air compressor and receive at least a portion of the cooling air for cooling the blades.
    Type: Grant
    Filed: March 26, 2001
    Date of Patent: May 7, 2002
    Assignee: Siemens Aktiengesellschaft
    Inventor: Klaus Werner
  • Patent number: 6385743
    Abstract: The novel method synchronizes an electronic device for monitoring the operation of a microprocessor (watchdog) with the microprocessor when the microprocessor is run up from a quiescent mode to an operating mode. The synchronization is effected by a trigger signal that is transmitted from the microprocessor to the monitoring device and that signals the operational availability of the microprocessor. The monitoring device, in order to receive the trigger signals, temporally toggles between a CLOSED window status, in which a trigger signal cannot be detected by the monitoring device, and an OPEN window status, in which the received trigger signal brings about synchronization between the microprocessor and the monitoring device. The microprocessor watchdog device has a trigger signal input which toggles, in a clocked manner, between a disabled position (CLOSED window) and an enabled position (OPEN window). The trigger signal is received during the OPEN window.
    Type: Grant
    Filed: January 8, 1999
    Date of Patent: May 7, 2002
    Assignee: Infineon Technologies AG
    Inventors: Olaf Huckfeldt, Michael Lenz
  • Patent number: 6382588
    Abstract: The valve seat is located between an inlet opening and an outlet opening, with a connecting stub against which an elastic membrane presses. The membrane is disposed above a cavity and formed by a part of a polysilicon layer. When a medium flows onto the side of the membrane facing the connecting stub, the membrane is lifted off the connecting stub and is pulled into the cavity, so that the medium can flow through the valve. The membrane can be stiffened by a stamp-like attachment, in order to ensure that the valve opens uniformly.
    Type: Grant
    Filed: November 8, 2000
    Date of Patent: May 7, 2002
    Assignee: Infineon Technologies A.G.
    Inventor: Christofer Hierold
  • Patent number: 6385123
    Abstract: The integrated circuit has a first decoder unit and a second decoder unit D2 connected in parallel with the latter, which decode the input signals fed to them in a different way in each case. The inputs of the second decoder unit D2 are connected to a respective one of the inputs of the first decoder unit D1. n lines L1 to be selected are each connected to a respective one of the outputs of the two decoder units D1, D2. Via their outputs, the first decoder unit D1 and the second decoder unit D2 determine, in a first operating mode and in a second operating mode, respectively, the potentials of the lines L1 to be selected.
    Type: Grant
    Filed: June 29, 2000
    Date of Patent: May 7, 2002
    Assignee: Infineon Technologies AG
    Inventors: Stefan Dietrich, Peter Schrögmeier, Sabine Schöniger, Christian Weis
  • Patent number: 6382840
    Abstract: A connector for detachable connection of one end region of an optical waveguide to another optical waveguide in a plug-in direction includes a ferrule and a housing. The housing has a holding region for holding and guiding the ferrule such that the ferrule is angularly moveable and guided with respect to the plug-in direction. The housing includes a stress-relief region for firmly connecting the optical waveguide to the housing. In the region between the stress-relief region and the holding region, the connector includes at least one curvature-limiting region for limiting the outward bending of the optical waveguide given an angular displacement of the ferrule with respect to the plug-in direction. The curvature-limiting region limits the movement of the optical waveguide and/or the ferrule. Given the configuration of the curvature-limiting region, outward bending of the optical waveguide beyond a maximum permissible curvature is prevented.
    Type: Grant
    Filed: December 27, 1999
    Date of Patent: May 7, 2002
    Assignee: Tyco Electronics Logistics AG
    Inventors: Oliver Bleck, Helge Schmidt
  • Patent number: 6382353
    Abstract: In the lower area of a ladder two pull or pressure rods are arranged on either side in a pivoting manner. Via sliding sleeves and joints said rods are joined to telescopic support elements which are each arranged at the level of an upright of the ladder. For greater stability the telescopic support elements are connected to each other via an auxiliary bar whose length can also be adjusted.
    Type: Grant
    Filed: February 14, 2001
    Date of Patent: May 7, 2002
    Inventor: Horst Laug
  • Patent number: 6384456
    Abstract: A field-effect transistor has a semiconductor body with a main area, in which at least one source zone and one drain zone are introduced and which is provided with a gate electrode isolated from a channel region disposed between a source zone and a drain zone by an insulator layer. In the field-effect transistor, the source zone, the drain zone and the channel region are disposed in walls of a respective trench or recess formed in the semiconductor body.
    Type: Grant
    Filed: March 30, 2000
    Date of Patent: May 7, 2002
    Assignee: Infineon Technologies AG
    Inventor: Jenoe Tihanyi
  • Patent number: 6384425
    Abstract: A nonconductive substrate forms a strip or a panel on which a multiplicity of carrier elements is formed, in particular for installation in a chipcard. One side of the substrate is provided with conductive contact surfaces which lie within an outer contour line that determines the size of a carrier element. The other side of the substrate has conductor structures within the outer contour line which form at least contact fields for at least one coil to be contacted and for at least one semiconductor chip. The substrate has cut-outs outside each outer contour line, through which it is possible to access coil terminals of the semiconductor chip for testing purposes from the contact-surface side, as long as the carrier element is still in the strip or in the panel.
    Type: Grant
    Filed: August 20, 1998
    Date of Patent: May 7, 2002
    Assignee: Infineon Technologies AG
    Inventors: Michael Huber, Peter Stampka, Gerhard Schraud, Peter Striegel, Hans-Georg Mensch
  • Patent number: 6382767
    Abstract: A method for cleaning a print head of an ink jet printer by a cleaning tape, which comprises sucking away printing ink from the print head by a suction device, and wiping or doctoring off the print head by the cleaning tape; a device for performing the method; an ink jet printer in combination with the device; and an offset and/or rotary printing machine in combination with the ink jet printer.
    Type: Grant
    Filed: June 28, 2000
    Date of Patent: May 7, 2002
    Assignee: Heidelberger Druckmaschinen AG
    Inventor: Martin Greive
  • Patent number: 6381856
    Abstract: A container-type sharpener is provided with a generator that can be manually operated or set off and provides an acoustic or visual effect. For this purpose, a shavings-collecting container is configured to be compressible against a flexible restoring pressure and the effect generator is pressure-operated or pressure-controlled.
    Type: Grant
    Filed: January 26, 2001
    Date of Patent: May 7, 2002
    Assignee: Kum Limited
    Inventor: Fritz Lüttgens
  • Patent number: 6383152
    Abstract: An apparatus produces intense pressure waves as shock waves for technical and preferably medical applications, especially for lithotripsy and/or pain therapy. Acoustic waves of high energy density are produced through the use of pressure pulsations. The pressure waves are produced by briefly heating a conductive electrolyte, whereby electric energy is converted directly and very largely without losses with the aid of an electric pulse for the purpose of heating up the electrolyte. The apparatus includes two electrodes which enclose the electrolyte and are controlled by a power pulse generator for outputting sound waves into a sound propagation medium.
    Type: Grant
    Filed: July 26, 1999
    Date of Patent: May 7, 2002
    Assignee: Siemens Aktiengesellschaft
    Inventors: Werner Hartmann, Joerg Kieser
  • Patent number: 6380782
    Abstract: The integrated circuit has a clock input for an external clock signal and an output unit controlled by an internal clock signal in a normal mode of operation to output data to a data output. In addition, the integrated circuit has a control unit generating the internal clock signal from the external clock signal. The control unit has a phase shift unit that, in the normal mode of operation, effects a phase shift of the internal clock signal generated by the control unit with respect to the external clock signal. In addition, the integrated circuit has a detector unit determining the capacitive load on the data output. The detector unit supplying the phase shift unit with a corresponding detector signal on the basis of which the phase shift is set.
    Type: Grant
    Filed: January 8, 2001
    Date of Patent: April 30, 2002
    Assignee: Infineon Technologies AG
    Inventor: Martin Buck
  • Patent number: D457149
    Type: Grant
    Filed: August 23, 2000
    Date of Patent: May 14, 2002
    Assignee: DeTeWe AG & Co.
    Inventor: Michael Arpe