Patents by Inventor Lester F. Ludwig

Lester F. 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).

  • Patent number: 10832693
    Abstract: A numerical sound synthesis method for representing data as audio for use in data sonification employing a Hilbert Space eigenfunction model of human auditory perception is described. The synthesis method comprises approximating an eigenfunction equation representing a model of human hearing, calculating the approximation to each of a plurality of eigenfunctions from at least one aspect of the eigenfunction equation, and storing the approximation to each of a plurality of eigenfunctions. The approximation to each of a plurality of eigenfunctions represents a perception-oriented basis functions for mathematically representing audio information in a Hilbert-space representation of an audio signal space. The model of human hearing can include a bandpass operation with a bandwidth having the frequency range of human hearing and a time-limiting operation approximating the time duration correlation window of human hearing.
    Type: Grant
    Filed: June 4, 2018
    Date of Patent: November 10, 2020
    Inventor: Lester F. Ludwig
  • Patent number: 10816467
    Abstract: Optical tomography arrangements are disclosed for performing optical tomography on the transparent or translucent contents of individual microplate wells comprising a light emitting array having a plurality of light emitting elements, a sample module, and a light sensing array including a plurality of light sensing elements, wherein the light sensing array is configured to sense light emitted from the light emitting array which has passed through the sample module. The light emitting elements can comprise light emitting diodes (LEDs), organic light emitting diodes (OLEDs), organic light emitting transistors (OLETs), and/or other optoelectronic devices. The light sensing array can comprise organic light sensing devices, photodiodes, phototransistors, CMOS photodetectors, or charge-coupled devices (CCDs). The light emitting array can be flat or curved, and the light sensing array can be flat or curved.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: October 27, 2020
    Inventor: Lester F. Ludwig
  • Patent number: 10656076
    Abstract: A color optical tomography system with fluorescence capabilities includes a light emitting array having a plurality of light emitting elements, a sample module, and a light sensing array including a plurality of light sensing elements, wherein the light sensing array is configured to sense light emitted from the light emitting array which has passed through the sample module. Light emitting elements emitting in the visible and UV ranges can comprise light emitting diodes (LEDs), organic light emitting diodes (OLEDs), organic light emitting transistors (OLETs), and/or other optoelectronic devices. The light sensing array can comprise for example organic light sensing devices, photodiodes, phototransistors, a CMOS photodetector, and/or charge-coupled devices (CCI)s). The light emitting array and the light sensing array can he flat or curved.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: May 19, 2020
    Inventors: Lester F. Ludwig, Karen Hao, Frank Hu, Alice Huang, Pooncharas Tipgunlakant
  • Patent number: 10546382
    Abstract: Continuing a sequence of lensless light-field imaging camera patents beginning 1999, the present invention adds light-use efficiency, predictive-model design, distance-parameterized interpolation, computational efficiency, arbitrary shaped surface-of-focus, angular diversity/redundancy, distributed image sensing, plasmon surface propagation, and other fundamentally enabling features. Embodiments can be fabricated entirely by printing, transparent/semi-transparent, layered, of arbitrary size/curvature, flexible/bendable, emit light, focus and self-illuminate at zero-separation distance between (planar or curved) sensing and observed surfaces, robust against damage/occultation, implement color sensing without use of filters or diffraction, overlay on provided surfaces, provided color and enhanced multi-wavelength color sensing, wavelength-selective imaging of near-infrared/near-ultraviolet, and comprise many other fundamentally enabling features.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: January 28, 2020
    Assignee: NRI R&D Patent Licensing, LLC
    Inventor: Lester F. Ludwig
  • Patent number: 10546970
    Abstract: Light-sensor array systems for capturing multiple-color images and light-fields using array of wavelength-selective optoelectronic elements (rather than wider-range photosensors prefaced with visible-band wavelength-selective optical elements such as color selective filters) as light-field or image sensors are presented. The light-sensor array can be one or more of transparent, bendable, and implemented on a curved surface. In some embodiments, the wavelength-selective light-sensing opto-electronic elements are arranged in a stacked array. In some embodiments, more than three wavelength-selective ranges can be employed in each light-sensing pixel. The invention can be used to implement one or more of a lensless imaging light-field camera, tactile gesture user interface, and/or proximate gesture user interface. In some embodiments, the light-sensor array system can be configured to emit light of one or more colors, and thus can additionally serve as an image display.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: January 28, 2020
    Assignee: NRI R&D Licensing, LLC
    Inventor: Lester F. Ludwig
  • Patent number: 10498939
    Abstract: Arrangements for small-sized, inexpensive, and innovative lensless and other micro-optic microscopy imaging and tomography are presented. An imaging region comprising flat or curved surfaces is provided with an illumination source proximate to the imaging region or arranged for collimated illumination. Light travels through the imaging region and produces a resulting light field affected by objects, materials, fluids, organisms, etc. in the light path and is presented to an image sensing surface proximate to the imaging region, responsively creating electrical image signals. The illumination surface can be light emitting elements such as LEDs, OLEDs, or OLET whose illumination can be sequenced in an image formation or tomography process. Light-emission and light detection elements can be printed, permitting extremely low-cost manufacturing and readily accommodating imaging regions having curved shapes.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: December 3, 2019
    Assignee: NRI R&D Patent Licensing, LLC
    Inventor: Lester F. Ludwig
  • Patent number: 10488827
    Abstract: A hierarchical multiple-level control system approach comprising subsystems, each with their own control system, that can operate in isolation but—when interconnected or networked with additional subsystems associated with other hierarchical levels, assume their respective role in a hierarchy. Applications of the implementation include, for example, hierarchical cooling and energy harvesting systems for data centers and other applications wherein various elements in the hierarchy can be introduced and/or removed in arbitrary order. Additional applications of the implementation include networked high-reliability control systems, robotics systems, networked sensor systems, adaptive communications networks, high-reliability communications networks, and command-and-control applications.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: November 26, 2019
    Assignee: NRI R&D Patent Licensing, LLC
    Inventor: Lester F. Ludwig
  • Patent number: 10449540
    Abstract: A general-purpose software-reconfigurable chemical process system useful in a wide range of applications is disclosed. Embodiments may include software control of internal processes, automated provisions for cleaning internal elements with solvents, provisions for clearing and drying gasses, and multitasking operation. In one family of embodiments, a flexible software-reconfigurable multipurpose reusable “Lab-on-a-Chip” or “embedded chemical processor” is realized that can facilitate a wide range of applications, instruments, and appliances. Through use of a general architecture, a single design can be economically manufactured in large scale and readily adapted to diverse specialized applications. Clearing and cleaning provisions may be used to facilitate reuse of the device, or may be used for decontamination prior to recycling or non-reclaimed disposal.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: October 22, 2019
    Assignee: NRI R&D Patent Licensing, LLC
    Inventor: Lester F. Ludwig
  • Patent number: 10427161
    Abstract: A hand-rotatable motorized-aperture plug arrangement for use as a stopcock in articles of traditional and legacy laboratory glassware of arbitrary complexity. The hand-rotatable plug additionally comprises a longitudinally-movable gate whose gate position is changed by a stepper or D.C. electrical motor. As the gate position is changed, the amount of flow can be varied. Hand-rotation operation of the plug itself can be used to force flow turn-off. The gate position can be monitored by a sensor and can be computer-controlled for use with an article of laboratory glassware for controlling and/or directing the flow of chemical materials.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: October 1, 2019
    Inventor: Lester F. Ludwig
  • Patent number: 10430066
    Abstract: This invention relates to signal space architectures for generalized gesture capture. Embodiments of the invention includes a gesture-primitive approach involving families of “gesteme” from which gestures can be constructed, recognized, and modulated via prosody operations. Gestemes can be associated with signals in a signal space. Prosody operations can include temporal execution modulation, shape modulation, and modulations of other aspects of gestures and gestemes. The approaches can be used for advanced touch user interfaces such as High-Dimensional Touch Pad (HDTP) in touchpad and touchscreen forms, video camera hand-gesture user interfaces, eye-tracking user interfaces, etc.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: October 1, 2019
    Assignee: NRI R&D PATENT LICENSING, LLC
    Inventor: Lester F. Ludwig
  • Patent number: 10429997
    Abstract: Sensor arrangements and signal processing for touch-based user interfaces comprising multiple sensor types and other arrangements so as to create user interface output signals responsive to touch. Various types of sensors and other measurement arrangements can include capacitive tactile sensor arrays, optical tactile sensor arrays, proximity sensor arrays, pressure sensor arrays, and video cameras. In one approach, spatial information processing acts on initial image processing data acting separately on the data or measurements provided by each sensor.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: October 1, 2019
    Inventors: Lester F. Ludwig, Vadim Zaliva
  • Patent number: 10406522
    Abstract: A microfluidic transport system for transporting microdroplets in three spatial dimensions among layers of a layered microfluidic system. In an example arrangement, a first microfluidic layer for transporting microdroplets in two spatial dimensions responsive to electric fields created by electrical operation of electrodes is fluidically connected by one or more conduits to other microfluidic layers. Microdroplets can be transported through the one or more conduits so as to be moved among a plurality of layered microfluidic arrangements. The resulting layered system can be used for heat transfer, fluidic transfer, and other uses, and can be implemented using materials such as metal, glass, polymer, plastic, layered materials, fibrous materials, etc. In some applications the layered system can be implemented within a printed circuit board, integrated circuit housing.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: September 10, 2019
    Assignee: NRI R&D PATENT LICENSING, LLC
    Inventor: Lester F. Ludwig
  • Publication number: 20190259359
    Abstract: A purely electronic musical instrument controller (without audio-frequency vibrating elements) for generating music control signals, such as MIDI-format control signals, and comprising arrays of strumpads is disclosed. The electronic musical instrument controller can include one or more of a (push)-button, touchpad, pressure sensor, ribbon controller, impact sensor, slider control, knob control, expression wheel, joystick, chord button array, switch, multiple-position selector, and internal sound-synthesis elements for internal audio signal generation. The electronic musical instrument controller can transmit control signals to an external system and receive control signals from an external system. Control signals can be of MIDI format. The electronic musical instrument controller can be secured on a stand or arrangement for attaching a strap, the strap enabling the electronic musical instrument controller to be worn by a user.
    Type: Application
    Filed: April 29, 2019
    Publication date: August 22, 2019
    Inventor: Lester F. LUDWIG
  • Publication number: 20190257829
    Abstract: This invention provides novel statistical processing approaches on measurements from diverse or varied sensors to collectively implement high-accuracy testing for detections and/or discernments of pathogens, substances, and/or biomarkers. For example, a group of inexpensive sensors can approach, match, or exceed the performance of existing high-accuracy methods. In an implementation, measurements are obtained from disposable optical and/or bioFET sensors arrayed on a substrate using printing techniques. In an example application, the invention operates together with or within a platform technology comprising a rich ability to flexibly perform, create, deploy, maintain, and update a range of panels, assay, array, and/or test sequences for a wide range of substances and pathogens using a wide range and large number of collocated highly-selective sensors and supplemental sensors (such as temperature, pH, selective ions, etc.).
    Type: Application
    Filed: April 30, 2019
    Publication date: August 22, 2019
    Inventors: Lester F. LUDWIG, Pooncharas TIPGUNLAKANT
  • Patent number: 10365890
    Abstract: A data sonification system for representing a plurality of channels of numerical information is described wherein the rate of the periodic modulation is itself used as a vehicle for carrying information of at least one component of the multidimensional numerical data. The data sonification system includes a plurality of audio waveform generator elements. Each of the audio waveform generator elements generates an associated audio frequency waveform. Each audio frequency waveform has an audio frequency parameter and at least one timbre modulation parameter having a settable value. The timbre modulation parameter affects the timbre of the audio waveform. The data sonification system includes a mapping element for associating aspects of multidimensional numerical data with the timbre modulation parameter of each audio frequency waveform. The mapping element sets the value of the timbre modulation parameter in response to multidimensional numerical data and/or periodic modulation.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: July 30, 2019
    Assignee: NRI R&D PATENT LICENSING, LLC
    Inventor: Lester F. Ludwig
  • Publication number: 20190198699
    Abstract: Light-sensor array systems for capturing multiple-color images and light-fields using array of wavelength-selective optoelectronic elements (rather than wider-range photosensors prefaced with visible-band wavelength-selective optical elements such as color selective filters) as light-field or image sensors are presented. The light-sensor array can be one or more of transparent, bendable, and implemented on a curved surface. In some embodiments, the wavelength-selective light-sensing opto-electronic elements are arranged in a stacked array. In some embodiments, more than three wavelength-selective ranges can be employed in each light-sensing pixel. The invention can be used to implement one or more of a lensless imaging light-field camera, tactile gesture user interface, and/or proximate gesture user interface. In some embodiments, the light-sensor array system can be configured to emit light of one or more colors, and thus can additionally serve as an image display.
    Type: Application
    Filed: February 28, 2019
    Publication date: June 27, 2019
    Inventor: Lester F. LUDWIG
  • Publication number: 20190188875
    Abstract: Continuing a sequence of lensless light-field imaging camera patents beginning 1999, the present invention adds light-use efficiency, predictive-model design, distance-parameterized interpolation, computational efficiency, arbitrary shaped surface-of-focus, angular diversity/redundancy, distributed image sensing, plasmon surface propagation, and other fundamentally enabling features. Embodiments can be fabricated entirely by printing, transparent/semi-transparent, layered, of arbitrary size/curvature, flexible/bendable, emit light, focus and self-illuminate at zero-separation distance between (planar or curved) sensing and observed surfaces, robust against damage/occultation, implement color sensing without use of filters or diffraction, overlay on provided surfaces, provided color and enhanced multi-wavelength color sensing, wavelength-selective imaging of near-infrared/near-ultraviolet, and comprise many other fundamentally enabling features.
    Type: Application
    Filed: February 22, 2019
    Publication date: June 20, 2019
    Inventor: Lester F. LUDWIG
  • Publication number: 20190187888
    Abstract: Methods for piecewise-linear and piecewise-affine transformations for finger-angle and spatial measurement decoupling in user touch and gesture interfaces including those with multitouch capabilities are described. A calculation chain provides a first-order calculation of up to six touch parameters (left-right, front-back, downward pressure, roll angle, pitch angle, yaw angle) responsive in real-time to user touch on a touch-responsive sensor array. A piecewise-affine transformation is applied to these first-order calculations to produce parameter decoupling. The piecewise-affine transformation can be structured to depend only on current numerical values from the first-order calculation. Alternatively, the piecewise-affine transformation can be structured to additionally depend on the positive or negative direction of change over time of at least one numerical value from the first-order calculation, thereby providing a correction for hysteresis effects.
    Type: Application
    Filed: February 22, 2019
    Publication date: June 20, 2019
    Inventor: Lester F. LUDWIG
  • Patent number: 10276138
    Abstract: A customizable electronic musical instrument includes a mounting frame for securing a plurality of user-installable electronic musical modules of various types including a type for generating at least one control signal responsive to user operation, a type for generating audio signals, responsive to a control signal. The instrument can transmit outgoing audio electrical signals to an external system and can include internal sound amplification. The instrument includes one or more types of controller elements such as a keyboard, touchpad, strumpad, impact sensor, slider control, expression wheel, joystick, ribbon controller, button, switch, pressure sensor, multiple-position selector, knob potentiometer, and further comprises at least one music synthesizer element. Control and audio signals may be routed among modules by a switch or bus. Audio signals can be mixed by a multichannel audio mixer and/or processed responsive to at least one control signal.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: April 30, 2019
    Assignee: NRI R&D PATENT LICENSING, LLC
    Inventor: Lester F. Ludwig
  • Patent number: 10274487
    Abstract: The invention provides a platform technology with rich ability to flexibly perform, create, deploy, maintain, and update a wide range of panels, assay, array, and/or sequence of tests for a wide range of substances and pathogens. The invention provides a unifying framework for widely-ranging miniature sensor implementation, fluidic/gas interfacing, electrical interfaces and optical interfaces, and further by collocating, allowing the integration a large number highly-selective sensors and chemical sensors—together as needed with appropriately selected supplemental sensors (for example temperature, pH, selective ions, etc.), into a common readily-manufacturable framework. The diverse sensor arrays give rise to statistical enhancing through novel statistical processing approaches.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: April 30, 2019
    Assignee: NRI R&D PATENT LICENSING, LLC
    Inventor: Lester F. Ludwig