Patents by Inventor Klaus Danzeisen

Klaus Danzeisen 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: 7532080
    Abstract: An oscillator circuit configuration comprising in an LC-parallel oscillatory circuit and a transistor as an amplifying element. A compensating winding is associated with the parallel oscillatory circuit whereby the collector voltage of the transistor is fed to said winding in order to compensate the effect of the parasitic collector capacity. Preferably, the collector current from the transistor is maintained constant be an amplifier.
    Type: Grant
    Filed: July 21, 2006
    Date of Patent: May 12, 2009
    Assignee: Synergy Microwave Corporation
    Inventors: Ulrich L. Rhode, Klaus Danzeisen
  • Publication number: 20060284695
    Abstract: An oscillator circuit configuration comprising in an LC-parallel oscillatory circuit and a transistor as an amplifying element. A compensating winding is associated with the parallel oscillatory circuit whereby the collector voltage of the transistor is fed to said winding in order to compensate the effect of the parasitic collector capacity. Preferably, the collector current from the transistor is maintained constant be an amplifier.
    Type: Application
    Filed: July 21, 2006
    Publication date: December 21, 2006
    Inventors: Ulrich Rohde, Klaus Danzeisen
  • Patent number: 7102453
    Abstract: The invention relates to an oscillator circuit configuration comprising in an LC-parallel oscillatory circuit and a transistor as an amplifying element. A compensating winding is associated with the parallel oscillatory circuit whereby the collector voltage of the transistor is fed to said winding in order to compensate the effect of the parasitic collector capacity. Preferably, the collector current from the transistor is maintained constant be an amplifier.
    Type: Grant
    Filed: August 4, 2000
    Date of Patent: September 5, 2006
    Assignee: Synergy Microwave Corporation
    Inventors: Ulrich L. Rohde, Klaus Danzeisen
  • Patent number: 7023948
    Abstract: A frequency arrangement with at least two successive heterodyne stages, one of which converts an input signal with an adjustable first frequency of a superposition oscillator that can be set in fine frequency increments into a first intermediate frequency, a second heterodyne stage that converts an input signal with a fixed second heterodyne frequency of a second superposition oscillator into a second intermediate frequency, the difference frequency between the first and second heterodyne frequencies is converted with an adjustable frequency divider into a lower frequency, which is then compared in a phase detector to the output frequency of a reference oscillator which is implemented as a synthesizer that can be set in fine frequency increments, the first superposition oscillator being synchronized with the output frequency of the reference oscillator via a phase control loop with the output signal of this phase detector, and the adjustable frequency divider preferably being a fractional N-divider with singl
    Type: Grant
    Filed: July 8, 2002
    Date of Patent: April 4, 2006
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventors: Alexander Roth, Klaus Danzeisen
  • Patent number: 6947007
    Abstract: The invention relates to dipole and monopole loops with a much shortened emitter relative to the theoretical length thereof and electrically extended at the ends thereof by non-emitting conductor pieces.
    Type: Grant
    Filed: November 16, 2000
    Date of Patent: September 20, 2005
    Assignee: Synergy Microwave Corporation
    Inventors: Ulrich L. Rohde, Klaus Danzeisen
  • Patent number: 6615031
    Abstract: In a heterodyne stage having a separating filter providing broadband termination for an output of a mixer, a resistance having the value of a system impedance is arranged between the separating filter and a following intermediate-frequency filter, the resistor being interconnected with a resonance element tuned to the intermediate frequency in such a way that the resistor, at the intermediate frequency, has minimal attenuation of the useful signal and, at all other frequencies, terminates the output of the mixer with the system impedance.
    Type: Grant
    Filed: May 10, 2000
    Date of Patent: September 2, 2003
    Inventors: Ulrich L. Rohde, Klaus Danzeisen
  • Patent number: 6519305
    Abstract: A frequency arrangement with at least two successive heterodyne stages, one of which converts an input signal with an adjustable first frequency of a superposition oscillator that can be set in fine frequency increments into a first intermediate frequency, a second heterodyne stage that converts an input signal with a fixed second heterodyne frequency of a second superposition oscillator into a second intermediate frequency, the difference frequency between the first and second heterodyne frequencies is converted with an adjustable frequency divider into a lower frequency, which is then compared in a phase detector to the output frequency of a reference oscillator which is implemented as a synthesizer that can be set in fine frequency increments, the first superposition oscillator being synchronized with the output frequency of the reference oscillator via a phase control loop with the output signal of this phase detector, and the adjustable frequency divider preferably being a fractional N-divider with singl
    Type: Grant
    Filed: April 28, 1999
    Date of Patent: February 11, 2003
    Assignee: Rohde & Scwarz GmbH & Co. KG
    Inventors: Alexander Roth, Klaus Danzeisen
  • Publication number: 20020176528
    Abstract: A frequency arrangement with at least two successive heterodyne stages, one of which converts an input signal with an adjustable first frequency of a superposition oscillator that can be set in fine frequency increments into a first intermediate frequency, a second heterodyne stage that converts an input signal with a fixed second heterodyne frequency of a second superposition oscillator into a second intermediate frequency, the difference frequency between the first and second heterodyne frequencies is converted with an adjustable frequency divider into a lower frequency, which is then compared in a phase detector to the output frequency of a reference oscillator which is implemented as a synthesizer that can be set in fine frequency increments, the first superposition oscillator being synchronized with the output frequency of the reference oscillator via a phase control loop with the output signal of this phase detector, and the adjustable frequency divider preferably being a fractional N-divider with simpl
    Type: Application
    Filed: July 8, 2002
    Publication date: November 28, 2002
    Inventors: Alexander Roth, Klaus Danzeisen
  • Patent number: 5942903
    Abstract: In an apparatus for EMC testing of electrical devices, conductors are arranged at opposite sides of a chamber of conductive material at a spacing from and parallel to the chamber walls. These conductors form a symmetrical double line and are fed out of phase at one end by a radio frequency source. They are electrically connected to the chamber walls at the other end via terminating impedances.
    Type: Grant
    Filed: November 22, 1996
    Date of Patent: August 24, 1999
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventors: Klaus Danzeisen, Klaus-Dieter Goepel, Werner Schmidt
  • Patent number: 5150063
    Abstract: In a reflection-coefficient bridge, the voltage drop across a neutral arm of the bridge is supplied to the indicator via a coaxial cable. The center conductor of the coaxial cable is coupled to the one connecting point of the neutral arm of the bridge while the outer conductor thereof is coupled to the other connecting point thereof. The coaxial cable and a parallel-connected line portion constitute a balanced converter or balun. Both the coaxial cable and the line portion are wound onto at least one ferrite core. A d.c. voltage is fed to a test object, which is connected to the bridge by way of a coaxial line, through a compensating winding wound on at least one of said ferrite cores to the end of the line portion which is r.f. coupled to the frame.
    Type: Grant
    Filed: July 3, 1991
    Date of Patent: September 22, 1992
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventors: Wolfgang Burkhard, Klaus Danzeisen
  • Patent number: 5132630
    Abstract: In an analyzer for measuring the frequency characteristics of quadripoles, comprising an indicator circuit in which the output of the quadripole to be measured is converted to an intermediate frequency by a mixer and a frequency-variable local oscillator, and comprising a variable-frequency second local oscillator whose output frequency is mixed with another mixer and with the frequency of the local oscillator to be converted to an input signal for the quadripole to be measured, the output frequency of the variable frequency second local oscillator is adjusted to be offset by at least .+-.5 MHz relative to the intermediate frequency value of the indicator circuit.
    Type: Grant
    Filed: March 26, 1991
    Date of Patent: July 21, 1992
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventor: Klaus Danzeisen
  • Patent number: 5025208
    Abstract: For fast measurement of radio-frequency interference voltages (also called RFI voltages) within a predetermined frequency range in conformity with rating standards, the maximum and minimum peak voltage levels are measured during tuning of the frequency range; when the maximum peak voltage level exceeds a predetermined limit value,the tuning process is interrupted and a quasi-peak measurement is performed at this instantaneous frequency.
    Type: Grant
    Filed: May 1, 1989
    Date of Patent: June 18, 1991
    Assignee: Rohde & Schwarz GmbH & Co KG
    Inventor: Klaus Danzeisen
  • Patent number: 4758783
    Abstract: For a fast and accurate frequency response compensation of a spectrum analyzer, the frequency-dependent control values for controlled amplifier are stored as digital values in a digital memory, and in between the memory and a sweep generator of a heterodyne oscillator, an analog-to-digital converter is disposed to provide frequency-proportional digital values of which the associated frequency-dependent control values stored in a memory can be selected and supplied to the controlled amplifier.
    Type: Grant
    Filed: September 28, 1987
    Date of Patent: July 19, 1988
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventor: Klaus Danzeisen