Patents by Inventor Frank Ludwig

Frank Ludwig 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).

  • Publication number: 20120193904
    Abstract: The invention relates to a security label for protecting medicaments contained in an individual packaging, comprising a security layer (10, 110, 210) that can be stuck on the individual packaging. Removable elements (16, 216) are formed in the security layer (10, 110, 210), in the region of the medicaments (15) to be inserted, in such a way that cuts (17) are made in the security layer (10, 110, 210), on the edge of the removable elements (16, 216), said cuts (17) following a virtual cut strip. In order to produce such a security label that can be easily opened, but still provides protection against unauthorised opening by children or inadvertent opening, and can be produced cost-effectively, obstacle points are provided on the cut strip, forming a resistance when the removal element is removed.
    Type: Application
    Filed: August 31, 2010
    Publication date: August 2, 2012
    Inventors: Frank Ludwig, Reinhard Kuge, Marco Dieling
  • Patent number: 8223911
    Abstract: The present invention relates to a phase detector circuit (10) having an RF distribution device (20) which is intended to receive two sinusoidal high-frequency signals (RF, LO) with an input phase difference (?RF(t)??LO(t)) and comprises two power splitters (21, 22) in order to split the two high-frequency signals (RF, LO) into two respective parts, a self-calibrating phase detector module (30) which is configured to receive one respective part of the two high-frequency signals which have been split, a low-noise phase detector module (40) which is configured to receive the respective other part of the high-frequency signals which have been split, and a complementary filter device (50) which is configured to receive the output signals from the self-calibrating phase detector module (30) and the low-noise phase detector module (40) and to output a signal which indicates the time-dependent input phase difference between the two high-frequency signals (RF, LO).
    Type: Grant
    Filed: May 21, 2007
    Date of Patent: July 17, 2012
    Assignee: Deutsches Elektronen-Synchrotron Desy
    Inventor: Frank Ludwig
  • Publication number: 20120073596
    Abstract: A device and method for treating the surface of a semiconductor wafer provides a treatment fluid in the form of a dispersion of gas bubbles in a treatment liquid generated at acoustic pressures less than those required to induce cavitation in the treatment liquid. A resonator supplies ultrasonic or megasonic energy to the treatment fluid and is configured to create an interference pattern in the treatment fluid comprising regions of pressure amplitude minima and maxima at an interface of the treatment fluid and the semiconductor wafer.
    Type: Application
    Filed: September 24, 2010
    Publication date: March 29, 2012
    Applicant: LAM RESEARCH AG
    Inventors: Frank Ludwig HOLSTEYNS, Alexander LIPPERT
  • Publication number: 20110155169
    Abstract: A cleaning fluid including dispersed gas avoids using ultrasonic energy to induce cavitation by subjecting a liquid containing dissolved gas to a pressure reduction in a bubble machine, to generate a gas/liquid dispersion. The cleaning fluid can be used to clean articles such as semiconductor wafers using a device that includes a holder and a vibrator for supplying ultrasonic or megasonic energy to the article.
    Type: Application
    Filed: December 31, 2009
    Publication date: June 30, 2011
    Applicant: LAM RESEARCH AG
    Inventors: Frank Ludwig HOLSTEYNS, Alexander LIPPERT, Thomas WIRNSBERGER
  • Publication number: 20110122977
    Abstract: The present invention relates to a phase detector circuit (10) having an RF distribution device (20) which is intended to receive two sinusoidal high-frequency signals (RF, LO) with an input phase difference (?RF(t)??LO(t)) and comprises two power splitters (21, 22) in order to split the two high-frequency signals (RF, LO) into two respective parts, a self-calibrating phase detector module (30) which is configured to receive one respective part of the two high-frequency signals which have been split, a low-noise phase detector module (40) which is configured to receive the respective other part of the high-frequency signals which have been split, and a complementary filter device (50) which is configured to receive the output signals from the self-calibrating phase detector module (30) and the low-noise phase detector module (40) and to output a signal which indicates the time-dependent input phase difference between the two high-frequency signals (RF, LO).
    Type: Application
    Filed: May 21, 2007
    Publication date: May 26, 2011
    Applicant: DEUTSCHES ELEKTRONEN-SYNCHROTRON DESY
    Inventor: Frank Ludwig
  • Patent number: 7911698
    Abstract: A monolithic or hybrid integrated optical processor or optical processing system having a plurality of phase shifting array elements, each controlled by respective control signals, and arranged so that each phase shifting array element lies in a different fractional Fourier transform plane. In various embodiments, at least a portion of the resulting system is implemented in a stack of element materials. In one embodiment, a segment of graded index material lies between consecutive phase shifting array elements. Other features include obtaining images from an electronically-controllable image source, using an image sensor to change the processed image into an electrical output, and using at least one of the phase shifting array element to introduce a phase shift.
    Type: Grant
    Filed: September 15, 2009
    Date of Patent: March 22, 2011
    Inventor: Lester Frank Ludwig
  • Patent number: 7786370
    Abstract: A system and method for processing and generating control signals for the real-time controlling of signal processors, synthesizers, musical instruments, MIDI processors, lighting, video, and special effects in performance, recording, and composition environments. The invention provides for the use of incoming control signals to control events and parameters of low-frequency oscillators and transient generators. The invention also provides for the processing of control signal values such as addition, multiplication, mirroring, offset, etc., individually or in combination with one another. The invention further provides for the conversion of one type of control signal to another type of control signal, for example conversion of MIDI “note-on message” parameters such as note number and velocity into MIDI “continuous controller messages” etc. The invention is particularly directed towards, but not limited to, the processing and generation of control signals in the form of MIDI messages.
    Type: Grant
    Filed: March 19, 2001
    Date of Patent: August 31, 2010
    Inventor: Lester Frank Ludwig
  • Patent number: 7754579
    Abstract: A method of forming a semiconductor device includes depositing a fill material (4) on a substrate portion (2) and on a dielectric layer (3) being disposed on the substrate (1) and having an opening (10) located above the substrate portion (2), removing the fill material (4) disposed above the dielectric layer (3), thereby leaving an exposed top surface (6) of the dielectric layer (3) and residual fill material (15) within the opening (10), forming a hard mask material (5) on the exposed top surface (6) of the dielectric layer (3) and on the residual fill material (15), patterning the hard mask material (5) for forming a hard mask (25) having trenches (8a, 8b) extending along a lateral direction (X) and exposing portions of the residual fill material (15) adjacent to the dielectric layer (3) and portions of the dielectric layer (3) adjacent to the residual fill material (15), anisotropically etching the dielectric layer (3), the residual fill material (15) and the substrate (1) selectively to the hard mask (5)
    Type: Grant
    Filed: August 21, 2006
    Date of Patent: July 13, 2010
    Assignee: Qimonda AG
    Inventors: Kimberly Wilson, Hans-Peter Moll, Rolf Weis, Phillip Stopford, Frank Ludwig
  • Publication number: 20100098408
    Abstract: A method is disclosed for detecting changes in an interval of time (?T) between an optical or electrical signal and an optical or electrical reference signal using a photodetector. The method may be used to synchronize an optical or electrical signal with an optical or electrical reference signal. An apparatus for carrying out the method is also disclosed. The method comprises the steps of: receiving the optical signal and the optical reference signal by means of the photodetector, outputting an electrical response signal at an output of the photodetector, the electrical response signal having a frequency spectrum which depends on the interval of time (?T), filtering a selected harmonic from the frequency spectrum of the electrical response signal which has been output, and detecting changes in the interval of time (?T) from changes in the amplitude of the selected harmonic.
    Type: Application
    Filed: August 21, 2009
    Publication date: April 22, 2010
    Applicant: DEUTSCHES ELEKTRONEN-SYNCHROTRON DESY
    Inventors: Florian Löhl, Johann Zemella, Holger Schlarb, Frank Ludwig, Axel Winter, Matthias Felber
  • Publication number: 20100064238
    Abstract: Two independently adjustable and positionable cursors are employed in a visual interface for editing an electronic document. The document may comprise text symbols, text objects, and graphics objects, among others. If both cursors are located in close proximity within the document, then these cursors may be simultaneously displayed in a single window. Otherwise, two areas of the document, each comprising one of the cursors, may be simultaneously displayed using a separate window for each cursor, or alternately selected and displayed in a single window. Copy or cut operations may be made with one cursor, while paste operations may be repeated using the second cursor. Cursor locations may be left unchanged, or they may be moved between or within editing operations. The two cursors may be freely controlled by an enhanced pointing device, such as a high-dimensional touchpad providing at least four independently adjustable parameters.
    Type: Application
    Filed: November 13, 2009
    Publication date: March 11, 2010
    Inventor: Lester Frank Ludwig
  • Publication number: 20100020399
    Abstract: A monolithic or hybrid integrated optical processor or optical processing system having a plurality of phase shifting array elements, each controlled by respective control signals, and arranged so that each phase shifting array element lies in a different fractional Fourier transform plane. In various embodiments, at least a portion of the resulting system is implemented in a stack of element materials. In one embodiment, a segment of graded index material lies between consecutive phase shifting array elements. Other features include obtaining images from an electronically-controllable image source, using an image sensor to change the processed image into an electrical output, and using at least one of the phase shifting array element to introduce a phase shift.
    Type: Application
    Filed: September 15, 2009
    Publication date: January 28, 2010
    Inventor: Lester Frank Ludwig
  • Publication number: 20090096001
    Abstract: A method of manufacturing an integrated circuit includes: forming a trench in a substrate, forming a high-k dielectric layer lining the trench, and removing a section of the high-k dielectric layer from the trench via an isotropic dry etch process.
    Type: Application
    Filed: October 15, 2007
    Publication date: April 16, 2009
    Applicant: QIMONDA AG
    Inventors: Frank Ludwig, Kerstin Porschatis
  • Publication number: 20080044980
    Abstract: A method of forming a semiconductor device includes depositing a fill material (4) on a substrate portion (2) and on a dielectric layer (3) being disposed on the substrate (1) and having an opening (10) located above the substrate portion (2), removing the fill material (4) disposed above the dielectric layer (3), thereby leaving an exposed top surface (6) of the dielectric layer (3) and residual fill material (15) within the opening (10), forming a hard mask material (5) on the exposed top surface (6) of the dielectric layer (3) and on the residual fill material (15), patterning the hard mask material (5) for forming a hard mask (25) having trenches (8a, 8b) extending along a lateral direction (X) and exposing portions of the residual fill material (15) adjacent to the dielectric layer (3) and portions of the dielectric layer (3) adjacent to the residual fill material (15), anisotropically etching the dielectric layer (3), the residual fill material (15) and the substrate (1) selectively to the hard mask (5)
    Type: Application
    Filed: August 21, 2006
    Publication date: February 21, 2008
    Inventors: Kimberly Wilson, Hans-Peter Moll, Rolf Weis, Phillip Stopford, Frank Ludwig
  • Publication number: 20070212849
    Abstract: The present invention relates to a method of fabricating a groove-like structure in a semiconductor device including etching a trench in a substrate, filling the trench with a spin-on-glass liquid forming a spin-on-glass liquid layer containing a solvent, baking the spin-on-glass liquid layer in order to remove the solvent and forming a baked layer, etching the baked layer to a predetermined depth using an etchant that provides a larger etch rate with regard to silicon than with regard to silicon nitride or silicon oxide, and, after etching the baked layer, annealing the remaining baked layer and forming a spin-on-glass oxide layer inside the trench.
    Type: Application
    Filed: March 10, 2006
    Publication date: September 13, 2007
    Inventors: Frank Ludwig, Kimberly Wilson, Arabinda Das, Hans-Peter Sperlich, Andreas Klipp, Kristin Schupke
  • Publication number: 20070105302
    Abstract: An integrated circuit is provided, which is formed on a semiconductor substrate. The integrated circuit comprises electronic elements and isolation elements, wherein the electronic elements and the isolation elements are arranged at a top surface of the semiconductor substrate. The isolation elements each are arranged between electronic elements and electrically isolate the electronic elements from each other. Furthermore, the isolation elements comprise an upper part and a lower part, wherein the upper part is broader than the lower part.
    Type: Application
    Filed: November 9, 2005
    Publication date: May 10, 2007
    Applicant: INFINEON TECHNOLOGIES AG
    Inventors: Albert Birner, Andreas Weber, Frank Ludwig, Jorg Radecker, Kimberly Wilson, Kerstin Mothes
  • Patent number: 6689947
    Abstract: A floor controller for real-time control of signal processors, synthesizers, musical instruments, MIDI processors, lighting, video, and special effects in performance, recording, and composition enviroments. Various combinations of physical controllers may be utilized (including foot switches, rocking foot pedals, null/contact touch-pads, pressure sensor arrays, etc.), as well as visual displays and internal control processing. Each physical controller may include a separate visual display of assigned name, status, and/or value. Rocking foot pedals may be used to simultaneously control multiple parameters by inclusion of aditional sensors. Each physical controller may be assigned specific control message functions, values, names, temporal event sequences, and invocation rules dicated by assignable state-machines. Assignments may be selected from organized structures via the physical controller elements.
    Type: Grant
    Filed: March 19, 2001
    Date of Patent: February 10, 2004
    Inventor: Lester Frank Ludwig
  • Patent number: 6687418
    Abstract: Fractional Fourier transform properties inherent in lens systems and other light and particle-beam environments may be exploited to correct misfocus effects in photographs, digital files, video, and other types of images. Small corrections may utilize fractional Fourier transform approximations around the reflection operator. The fractional Fourier transform and approximations can be rendered by optical or numerical methods, alone or in combination, directly or though use of a conventional discrete Fourier transform in combination with multiplying phase “chirps.” The corrective fractional Fourier transform power may be determined automatically or by human operator.
    Type: Grant
    Filed: February 25, 2000
    Date of Patent: February 3, 2004
    Inventor: Lester Frank Ludwig
  • Patent number: 6650476
    Abstract: Fractional Fourier transform properties of lenses or other elements or optical environments are used to introduce one or more positive-definite optical transfer functions outside the Fourier plane so as to realize or closely approximate arbitrary non-positive-definite transfer functions. Designs can be straightforwardly obtained by methods of approximation. The invention provides for single and multiple channel controllable optical processors which may be used for image or other types of computation, including computation with complex-valued arithmetic, visual color, and wide-spectrum optical signals. The invention also provides for synthesis of Fractional Fourier transforms, extensions to non-Hermite basis functions, phase-shifting filter elements and non-quadratic graded-index materials (which do not naturally invoke the Fractional Fourier transform operation).
    Type: Grant
    Filed: February 25, 2000
    Date of Patent: November 18, 2003
    Inventor: Lester Frank Ludwig
  • Patent number: 6570078
    Abstract: A system and method for real-time controlling of signal processors, synthesizers, musical instruments, MIDI processors, lighting, video, and special effects in performance, recording, and composition environments using images derived from tactile sensors, pressure sensor arrays, optical transducer arrays, chemical sensor arrays, body sensor arrays, and numerical computation. The invention provides for pressure sensor arrays and body sensor arrays as tactile control interfaces, for video cameras and light sensor arrays as optical transducers, for chemical sensor arrays, and for other numerical image generation from computer processing or numeric simulation. Tactile transducers may be put on instrument keys of conventional instruments, be attached to existing instruments, or be used to create entirely new instrument or controller configurations.
    Type: Grant
    Filed: March 19, 2001
    Date of Patent: May 27, 2003
    Inventor: Lester Frank Ludwig
  • Publication number: 20020005108
    Abstract: A system and method for real-time controlling of signal processors, synthesizers, musical instruments, MIDI processors, lighting, video, and special effects in performance, recording, and composition environments using images derived from tactile sensors, pressure sensor arrays, optical transducer arrays, chemical sensor arrays, body sensor arrays, and numerical computation. The invention provides for null/contact touch-pads, pressure sensor arrays, and body sensor arrays as tactile control interfaces, for video cameras and light sensor arrays as optical transducers, for chemical sensor arrays, and for other numerical image generation from computer processing or numeric simulation. Tactile transducers may be put on instrument keys of conventional instruments, be attached to existing instruments, or be used to create entirely new instrument or controller configurations.
    Type: Application
    Filed: March 19, 2001
    Publication date: January 17, 2002
    Inventor: Lester Frank Ludwig