Patents by Inventor Dirk Fuhrmann

Dirk Fuhrmann has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8561564
    Abstract: A method and a device for launching an underwater moving body. In order to reduce the expenses arising from furnishing watercraft, a land supported deployment of underwater moving bodies in coastal waters using a launching device is provided with a land-based carrier system for transporting the underwater moving body and a corresponding land-based deploying system.
    Type: Grant
    Filed: April 22, 2010
    Date of Patent: October 22, 2013
    Assignee: Atlas Elektronik GmbH
    Inventors: Axel Brenner, Ralf Bartholomäus, Wolfgang Bünsch, Sönke Huckfeldt, Dirk Fuhrmann
  • Patent number: 8496858
    Abstract: The invention relates to a fiberglass spool comprising a self-supporting roll (12) having layers of windings (20) located one above the other of an optical fiber (13) for transmitting data that may be unwound from the interior of the roll outwards, wherein the windings (20) are fixed to one another by means of an adhesive bonding agent. In order to realize a sufficiently stable, self-supporting roll (12) that may be reliably unwound from the inside outwards without loops being pulled out of the roll (12), the roll (12) is structured as a cross-winding and a hydrocarbon-based, salt water-resistant, chemically inert impregnating material that may be liquefied by heating is used as the bonding agent.
    Type: Grant
    Filed: September 5, 2008
    Date of Patent: July 30, 2013
    Assignee: Atlas Elektronik GmbH
    Inventors: Axel Brenner, Sonke Huckfeldt, Wilfried Junge, Jurgen Lindner, Dirk Fuhrmann, Ralf Bartholomaus
  • Publication number: 20130011196
    Abstract: A method and a device for launching an underwater moving body. In order to reduce the expenses arising from furnishing watercraft, a land supported deployment of underwater moving bodies in coastal waters using a launching device is provided with a land-based carrier system for transporting the underwater moving body and a corresponding land-based deploying system.
    Type: Application
    Filed: April 22, 2010
    Publication date: January 10, 2013
    Applicant: ATLAS ELEKRONIK HEERSTRASSE 235
    Inventors: Axel Brenner, Ralf Bartholomäus, Wolfgang Bünsch, Sönke Huckfeldt, Dirk Fuhrmann
  • Publication number: 20100301501
    Abstract: The invention relates to a fiberglass spool comprising a self-supporting roll (12) having layers of windings (20) located one above the other of an optical fiber (13) for transmitting data that may be unwound from the interior of the roll outwards, wherein the windings (20) are fixed to one another by means of an adhesive bonding agent. In order to realize a sufficiently stable, self-supporting roll (12) that may be reliably unwound from the inside outwards without loops being pulled out of the roll (12), the roll (12) is structured as a cross-winding and a hydrocarbon-based, salt water-resistant, chemically inert impregnating material that may be liquefied by heating is used as the bonding agent.
    Type: Application
    Filed: September 5, 2008
    Publication date: December 2, 2010
    Applicant: Atlas Elektronick GmbH
    Inventors: Axel Brenner, Sonke Huckfeldt, Wilfried Junge, Jurgen Lindner, Dirk Fuhrmann, Ralf Bartholomaus
  • Patent number: 7457177
    Abstract: A random access memory including an array of memory cells configured to store memory cell data, a first circuit, and a second circuit. The first circuit is configured to compare test data and memory cell data to obtain comparison results. The second circuit is configured to compress the comparison results and store the compressed comparison results.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: November 25, 2008
    Assignee: Infineon Technologies AG
    Inventors: Rob Perry, Norbert Rehm, Jan Zieleman, Rath Ung, Dirk Fuhrmann
  • Patent number: 7443740
    Abstract: An integrated semiconductor memory includes a clock generator circuit for generating an internal clock signal that exhibits a certain phase angle with respect to an external clock signal. The phase angle is dependent on a value of the supply voltage of the clock generator circuit. The supply voltage is provided by a controllable voltage generator that includes a controllable resistor. During the production process, the supply voltage generated can be picked up at a contact pad. The value of the controllable resistor is changed in each memory chip by an automatic production machine until the supply voltage generated matches a target value. The controllable voltage generator can be adjusted individually for each memory chip via fuse elements so that the target value of the supply voltage is achieved with high accuracy for each memory chip.
    Type: Grant
    Filed: February 16, 2006
    Date of Patent: October 28, 2008
    Assignee: Infineon Technologies AG
    Inventors: Dirk Fuhrmann, Matthias Skalitz
  • Patent number: 7362632
    Abstract: Embodiments of the invention generally provide methods and systems for increasing the level of parallelism in testing memory devices. A set of test signals provided by a memory tester may be shared by two or more devices under test. A chip selector may be used to select at least one or all the devices sharing a given set of test signals. By sharing test signals between multiple devices, the level of parallel testing may be increased without increasing the pin count and complexity of memory testers and probe cards.
    Type: Grant
    Filed: January 17, 2006
    Date of Patent: April 22, 2008
    Assignee: Infineon Technologies AG
    Inventors: Norbert Rehm, Rath Ung, Rob Perry, Jan Zieleman, Dirk Fuhrmann
  • Patent number: 7330387
    Abstract: An integrated semiconductor memory device includes a sense amplifier that is connected to a first bit line via a first output connection and is connected to a second bit line via a second output connection. A memory cell to store a first or a second memory state is connected to the first bit line. When writing/reading the first memory state, the sense amplifier produces a negative voltage at the first output connection and a positive voltage at the second output connection, and when writing/reading the second memory state, it produces the positive voltage at the first output connection and the negative voltage at the second output connection. The production of a negative voltage results in one of the two bit lines being charged approximately to a ground potential during a read or write access.
    Type: Grant
    Filed: November 7, 2005
    Date of Patent: February 12, 2008
    Assignee: Infineon Technologies, AG
    Inventors: Reidar Lindstedt, Dirk Fuhrmann
  • Patent number: 7313044
    Abstract: An integrated semiconductor memory device includes a temperature sensor circuit to generate a temperature-dependent control signal, a reference circuit to generate a temperature-independent reference signal, a comparator circuit and a voltage generator circuit. The comparator circuit generates a first level or second level of an activation signal in a manner dependent on the comparison of the control signal and the reference signal which are both fed to it on an input side. The voltage generator circuit generates a first control signal or a second control signal in a manner dependent on the level of the activation signal. The integrated semiconductor memory enables the generation of two control signals for a selection transistor of a memory cell in a manner dependent on whether the temperature sensor circuit detects a temperature in a first temperature range or in a second temperature range.
    Type: Grant
    Filed: February 4, 2005
    Date of Patent: December 25, 2007
    Assignee: Infineon Technologies, AG
    Inventors: Dirk Fuhrmann, Reidar Lindstedt
  • Patent number: 7313033
    Abstract: A random access memory including first memory cells, second memory cells, a first voltage source, and a second voltage source. The first voltage source is configured to control the first memory cells. The second voltage source is configured to control the second memory cells. Also, the first voltage source is configured to be trimmed independently of the second voltage source to provide a first voltage that reduces leakage from the first memory cells and the second voltage source is configured to be trimmed independently of the first voltage source to provide a second voltage that reduces leakage from the second memory cells.
    Type: Grant
    Filed: September 28, 2005
    Date of Patent: December 25, 2007
    Assignee: Infineon Technologies AG
    Inventors: Dirk Fuhrmann, Jan Zieleman, Norbert Rehm, Rob Perry, Rath Ung
  • Patent number: 7299388
    Abstract: A method and apparatus according to the present invention enable wafer chips to be configured with a single power on and off sequence and further enable a chip parameter to be adjusted during a wafer test without utilizing that sequence. In particular, each wafer chip under test is assigned a unique programmable identification. Once each chip has been assigned a corresponding identification, the chips may each be individually accessible by that identification to provide parameter values to chip registers to configure that chip. The configured chips may be subsequently tested in parallel to evaluate the parameter settings. In addition, the present invention enables chips to share data I/O pins or lines, thereby reducing the quantity of testing machine pins utilized for each chip and enabling a greater quantity of chips to be tested in a parallel fashion.
    Type: Grant
    Filed: July 7, 2005
    Date of Patent: November 20, 2007
    Assignee: Infineon Technologies, AG
    Inventors: Rath Ung, Jan Zieleman, Robert Perry, Norbert Rehm, Dirk Fuhrmann
  • Publication number: 20070165469
    Abstract: Embodiments of the invention generally provide methods and systems for increasing the level of parallelism in testing memory devices. A set of test signals provided by a memory tester may be shared by two or more devices under test. A chip selector may be used to select at least one or all the devices sharing a given set of test signals. By sharing test signals between multiple devices, the level of parallel testing may be increased without increasing the pin count and complexity of memory testers and probe cards.
    Type: Application
    Filed: January 17, 2006
    Publication date: July 19, 2007
    Inventors: Norbert Rehm, Rath Ung, Rob Perry, Jan Zieleman, Dirk Fuhrmann
  • Publication number: 20070140024
    Abstract: A random access memory including an array of memory cells configured to store memory cell data, a first circuit, and a second circuit. The first circuit is configured to compare test data and memory cell data to obtain comparison results. The second circuit is configured to compress the comparison results and store the compressed comparison results.
    Type: Application
    Filed: December 21, 2005
    Publication date: June 21, 2007
    Inventors: Rob Perry, Norbert Rehm, Jan Zieleman, Rath Ung, Dirk Fuhrmann
  • Publication number: 20070070683
    Abstract: A random access memory including first memory cells, second memory cells, a first voltage source, and a second voltage source. The first voltage source is configured to control the first memory cells. The second voltage source is configured to control the second memory cells. Also, the first voltage source is configured to be trimmed independently of the second voltage source to provide a first voltage that reduces leakage from the first memory cells and the second voltage source is configured to be trimmed independently of the first voltage source to provide a second voltage that reduces leakage from the second memory cells.
    Type: Application
    Filed: September 28, 2005
    Publication date: March 29, 2007
    Inventors: Dirk Fuhrmann, Jan Zieleman, Norbert Rehm, Rob Perry, Rath Ung
  • Patent number: 7197679
    Abstract: An integrated semiconductor memory operates in synchronization with a clock signal in a normal operating state and is switched from the normal operating state to a test operating state by applying a combination of control signals. During a first test cycle, selection transistors for memory cells are turned on by asynchronously actuating the semiconductor memory using a state change in a control signal. In a second test cycle, the memory content of at least one of the previously activated memory cells is read by synchronously actuating the semiconductor memory using a second signal combination of control signals. By shifting the timing of a signal edge which prompts the state change in the first test cycle close to the time at which the second signal combination is applied in the second test cycle, it is possible to test short reading times which are within one period of the clock signal.
    Type: Grant
    Filed: April 1, 2005
    Date of Patent: March 27, 2007
    Assignee: Infineon Technologies AG
    Inventors: Dirk Fuhrmann, Reidar Lindstedt
  • Publication number: 20070011518
    Abstract: A method and apparatus according to the present invention enable wafer chips to be configured with a single power on and off sequence and further enable a chip parameter to be adjusted during a wafer test without utilizing that sequence. In particular, each wafer chip under test is assigned a unique programmable identification. Once each chip has been assigned a corresponding identification, the chips may each be individually accessible by that identification to provide parameter values to chip registers to configure that chip. The configured chips may be subsequently tested in parallel to evaluate the parameter settings. In addition, the present invention enables chips to share data I/O pins or lines, thereby reducing the quantity of testing machine pins utilized for each chip and enabling a greater quantity of chips to be tested in a parallel fashion.
    Type: Application
    Filed: July 7, 2005
    Publication date: January 11, 2007
    Inventors: Rath Ung, Jan Zieleman, Robert Perry, Norbert Rehm, Dirk Fuhrmann
  • Patent number: 7136295
    Abstract: A semiconductor arrangement on a semiconductor chip includes a number of lines of a first type that extend outwardly from an inner region toward an outer region of the semiconductor chip. A number of lines of a second type are arranged around the inner region of the semiconductor chip. The lines of the second type are bit lines when the lines of the first type are word lines and the lines of the second type are word lines when the lines of the first type are bit lines. A number of individual element arrays are arranged along the lines of the first type and lines of the second type. The individual element arrays include memory cells.
    Type: Grant
    Filed: May 6, 2005
    Date of Patent: November 14, 2006
    Assignee: Infineon Technologies AG
    Inventors: Dirk Fuhrmann, Reidar Lindstedt
  • Publication number: 20060181939
    Abstract: An integrated semiconductor memory includes a clock generator circuit for generating an internal clock signal that exhibits a certain phase angle with respect to an external clock signal. The phase angle is dependent on a value of the supply voltage of the clock generator circuit. The supply voltage is provided by a controllable voltage generator that includes a controllable resistor. During the production process, the supply voltage generated can be picked up at a contact pad. The value of the controllable resistor is changed in each memory chip by an automatic production machine until the supply voltage generated matches a target value. The controllable voltage generator can be adjusted individually for each memory chip via fuse elements so that the target value of the supply voltage is achieved with high accuracy for each memory chip.
    Type: Application
    Filed: February 16, 2006
    Publication date: August 17, 2006
    Inventors: Dirk Fuhrmann, Matthias Skalitz
  • Patent number: 7082513
    Abstract: An integrated memory contains an addressing unit for addressing memory cells for a memory access on the basis of received addressing signals. An addressing calculation logic unit is connected to the addressing unit. The latter can be activated by a test mode signal for a test operation of the memory. The addressing calculation logic unit receives command signals and address signals for the test operation, calculates therefrom the addressing signals for the memory access and feeds the latter into the addressing unit. After an initialization with the loading of initial parameters, the command signals and address signals for the test operation are applied to the addressing calculation logic unit and read/write operations are carried out by an access controller. An integrated memory with implemented BIST hardware, in the case of which a comparatively high functionality and flexibility during the memory test, are nevertheless made possible.
    Type: Grant
    Filed: August 4, 2003
    Date of Patent: July 25, 2006
    Assignee: Infineon Technologies AG
    Inventors: Dirk Fuhrmann, Martin Perner
  • Patent number: 7057224
    Abstract: A semiconductor memory can have first lines to which memory cells are connected and that run divergently with respect to one another, and second lines to which the memory cells are connected that are curved. Combining the geometry of the memory cell array with storage capacitors laterally offset allows signal delays along word lines and bit lines to be aligned regardless of the position of a memory cell in the memory cell array. The geometry of the memory cell array allows short signal propagation times to be attained particularly along the first lines, which are divergent with respect to one another, this simplifying error-free operation of a semiconductor memory particularly at high clock frequencies.
    Type: Grant
    Filed: December 10, 2003
    Date of Patent: June 6, 2006
    Assignee: Infineon Technologies AG
    Inventors: Reidar Lindstedt, Dirk Fuhrmann