Inventor
Lester F. Ludwig
Inventor
Redwood Shores, CA, US
Overview
Patents· 214 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G06Fprimary
G06FElectric digital data processing15%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests10%
H04LTransmission of digital information, e.g. telegraphic communication9%
G10HElectrophonic musical instruments7%
H04NPictorial communication, e.g. television7%
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes6%
H04MTelephonic communication5%
G02BOptical elements, systems or apparatus4%
G06TImage data processing or generation, in general4%
G01NInvestigating or analysing materials by determining their chemical or physical properties3%
PatentTitleYear
11,104,930Cap arrangements providing per-well fluidics and gas exchange for advanced microplate, microarray, and microtiter technologies202110,832,693Sound synthesis for data sonification employing a human auditory perception eigenfunction model in Hilbert space202010,816,467Optical tomography optoelectronic arrangements for microplate wells202010,656,076Optical tomography optoelectronic arrangements for microscopy, cell cytometry, microplate array instrumentation, crystallography, and other applications202010,546,970Color imaging using array of wavelength-selective optoelectronic elements as light-field or image sensor and additionally capable of emitting light202010,546,382Advanced lensless light-field imaging systems for enabling a wide range of entirely new applications202010,498,939Small-profile lensless optical microscopy imaging and tomography instruments and elements for low cost and integrated microscopy201910,488,827Adaptive multi-level control for variable-hierarchy-structure hierarchical systems201910,449,540General-purpose reconfigurable conduit and reaction chamber microfluidic arrangements for lab-on-chip and miniature chemical processing201910,430,066Gesteme (gesture primitive) recognition for advanced touch user interfaces201910,427,161Hand-rotatable plug valve with motorized longitudinally-movable gate rotating for use as a stopcock with laboratory glassware in chemical laboratory automation and other applications201910,429,997Heterogeneous tactile sensing via multiple sensor types using spatial information processing acting on initial image processed data from each sensor201910,406,522Three-dimensional multiple-layer microfluidic micro-droplet arrays for chemical and biochemical microreactors, miniature bioreactors, heat transfer, and other applications201910,365,890Multi-channel data sonification system with partitioned timbre spaces including periodic modulation techniques201910,276,138Customizable wearable electronic musical instruments having user-installable controller modules and synthesis modules201910,274,487Microprocessor-controlled microfluidic platform for pathogen, toxin, biomarker, and chemical detection with removable updatable sensor array for food and water safety, medical, and laboratory applications201910,230,016Color imaging using array of wavelength-selective optoelectronic elements as light-field image or sensor201910,216,399Piecewise-linear and piecewise-affine subspace transformations for high dimensional touchpad (HDTP) output decoupling and corrections201910,217,235Advanced lensless light-field imaging systems and methods for enabling a wide range of entirely new applications201910,166,545Valve-manifold laboratory glassware with electrically motorized moveable-gate valves for chemical laboratory automation and other applications201910,073,532General spatial-gesture grammar user interface for touchscreens, high dimensional touch pad (HDTP), free-space camera, and other user interfaces201810,042,479Heterogeneous tactile sensing via multiple sensor types using spatial information processing201810,037,186Multi-channel data sonification employing data-modulated sound timbre classes201810,036,579Incremental deployment of stand-alone and hierarchical adaptive cooling and energy harvesting arrangements for information technology201810,024,791Cylindrical optical tomography for microscopy, cell cytometry, microplate array instrumentation, crystallography, and other applications20189,994,889Advanced microplate, microtiter, and microarray technologies with per-well fluidics, gas exchange, electronic sensors, and imaging for cell culture and other applications20189,990,930Audio signal encoding and decoding based on human auditory perception eigenfunction model in Hilbert space20189,830,042Enhanced roll-over, button, menu, slider, and hyperlink environments for high dimensional touchpad (HTPD), other advanced touch user interfaces, and advanced mice20179,823,781'Heterogeneous tactile sensing via multiple sensor types'20179,824,672'Modular approach to large string array electronic musical instruments such as specialized harps, zithers, sympathetic string arrays, partch kithara and harmonic cannon'20179,802,190'Modular computer-controlled multistep chemical processing system for use in laboratory automation or chemical production spanning a plurality of scales'20179,735,303'Color imaging using color OLED or LED array as color light-field imaging sensor'20179,724,694'Laboratory stopcock valve manifold with arbitrary mapping of flow to rotation angle and provisions for motorized planetary gear control'20179,709,483'Electronic imaging flow-microscope for environmental remote sensing, bioreactor process monitoring, and optical microscopic tomography'20179,665,554'Value-driven visualization primitives for tabular data of spreadsheets'20179,646,589'Joint and coordinated visual-sonic metaphors for interactive multi-channel data sonification to accompany data visualization'20179,646,133'Computer system and microfluidic instrumentation for next-generation biological signaling network research and applications'20179,636,655'Software-reconfigurable conduit and reaction chamber microfluidic arrangements for lab-on-a-chip and miniature chemical processing techologies'20179,632,344'Use of LED or OLED array to implement integrated combinations of touch screen tactile, touch gesture sensor, color image display, hand-image gesture sensor, document scanner, secure optical data exchange, and fingerprint processing capabilities'20179,626,023'LED/OLED array approach to integrated display, lensless-camera, and touch-screen user interface devices and associated processors'20179,613,617'Auditory eigenfunction systems and methods'20179,605,881'Hierarchical multiple-level control of adaptive cooling and energy harvesting arrangements for information technology'20179,594,019'Optical tomography for microscopy, cell cytometry, microplate array instrumentation, crystallography, and other applications'20179,594,239'Optical tomography for microscopy, cell cytometry, microplate array instrumentation, crystallography, and other applications'20179,586,202'Valve-manifold laboratory glassware for chemical laboratory automation and other applications'20179,441,308'Three-dimensional microfluidic micro-droplet arrays for electronic integrated circuit and component cooling, energy-harvesting, chemical and biochemical microreactors, miniature bioreactors, and other applications'20169,442,652'General user interface gesture lexicon and grammar frameworks for multi-touch, high dimensional touch pad (HDTP), free-space camera, and other user interfaces'20169,423,161'Use of energy harvested by adaptive cooling and energy harvesting arrangements for information technology'20169,417,716'Mouse-based user interface device employing user-removable modules'20169,389,713'Piecewise-linear and piecewise-affine subspace transformations for high dimensional touchpad (HDTP) output decoupling and corrections'20169,304,677'Touch screen apparatus for recognizing a touch gesture'20169,203,889'Facilitating scalable mobile multi-service communications including 2-way video and other high-bandwidth services'20159,172,850'Lensless imaging camera performing image formation in software employing micro-optic elements creating overlap of light from distant sources over multiple photosensor elements'20159,160,894'Lensless imaging camera performing image formation in software and employing micro-optic elements that impose light diffractions'20159,071,619'Hierarchical closed-loop control of policy, goal, and resource allocation in bandwidth management using both service-specific and network monitor observations'20159,031,347'Correction of over-focus in digital images using centered discrete imaginary-power fractional fourier transformations with high-accuracy orthonormal eigenvectors'20159,019,237'Multitouch parameter and gesture user interface employing an LED-array tactile sensor that can also operate as a display'20158,949,316'Scalable high-performance interactive real-time media architectures for virtual desktop environments'20158,941,047'Molecular transistor driving of nanoscale actuators from differential amplifier circuits compatible with carbon nanotube sensors and transducers'20158,935,847'Modular reactive distillation emulation elements integrated with instrumentation, control, and simulation algorithms'20158,934,731'Variable focusing of electron microscopy image data utilizing fractional powers of the Fourier transform operator'20158,897,590'Variable focusing of electron microscopy image data utilizing origin-centered discrete fractional fourier transform'20148,885,035'Electronic imaging flow-microscope for environmental remote sensing, bioreactor process monitoring, and optical microscopic tomography'20148,877,143'Chemical synthesis and analysis via integrated, sequential and series-parallel photochemical and other chemical processes for microfluidic, lab-on-a-chip, and green-chemistry applications'20148,878,810'Touch screen supporting continuous grammar touch gestures'20148,879,844'High-performance closed-form single-scan calculation of oblong-shape rotation angles from optical image data of arbitrary size and location for user interface applications'20148,878,807'Gesture-based user interface employing video camera'20148,869,141'Scalable high-performance interactive real-time media architectures for virtual desktop environments'20148,866,785'Sensor array touchscreen recognizing finger flick gesture'20148,859,876'Multi-channel signal processing for multi-channel musical instruments'20148,830,375'Vignetted optoelectronic array for use in synthetic image formation via signal processing, lensless cameras, and integrated camera-displays'20148,826,113'Surface-surface graphical intersection tools and primitives for data visualization, tabular data, and advanced spreadsheets'20148,826,114'Surface-curve graphical intersection tools and primitives for data visualization, tabular data, and advanced spreadsheets'20148,816,263'Vignetted planar spatial light-field sensor and spatial sampling designs for far-field lensless synthetic imaging via signal processing image formation'20148,816,956'Mouse-based user interface device employing user-removable modules'20148,812,163'Multi-channel chemical transport bus with bus-associated sensors for microfluidic and other applications'20148,799,362'Scalable high-performance interactive real-time media architectures for virtual desktop environments'20148,792,167'Programmable optical computing device employing LED array transducers, non-quadratic phase optical elements, and stacked light modulator elements'20148,787,204'Network communications bandwidth manager control system providing for associated communications processing resources'20148,780,757'Network communications bandwidth manager control system providing for associated communications processing resources'20148,754,842'Combined display and image capture without simple or compound lenses for video conferencing eye-contact and other applications'20148,743,068'Touch screen method for recognizing a finger-flick touch gesture'20148,743,076'Sensor array touchscreen recognizing finger flick gesture from spatial pressure distribution profiles'20148,734,736'Valve-manifold laboratory glassware for chemical laboratory automation and other application'20148,734,732'Chemical synthesis and analysis via integrated or sequential photochemical and electrochemical processes for use in microfluidic, lab-on-a-chip, and green-chemistry applications'20148,717,303'Sensor array touchscreen recognizing finger flick gesture and other touch gestures'20148,716,585'Customizable electronic musical instrument and user interface'20148,712,185'High-accuracy centered fractional fourier transform matrix for optical imaging and other applications'20148,706,449'Advanced synthesized hysteresis for signal processing, controllers, music, and computer simulations in physics, engineering, and economics'20148,692,100'User interface metaphor methods for multi-channel data sonification'20148,693,500'Hierarchical closed-loop control of policy, goal, and resource allocation in bandwidth management'20148,686,960'Piecewise-linear and piecewise-affine transformations for high dimensional touchpad (HDTP) output decoupling and corrections'20148,681,969'Facilitating scalable 2-way mobile AV communications'20148,682,937'Energy and internal environment management information systems and methods for buildings and campuses'20148,671,370'Chain/leapfrog circuit topologies and tools for carbon nanotube/graphene nanoribbon nanoelectronics, printed electronics, polymer electronics, and their confluences'20148,660,823'Nonlinear and lie algebra structural analysis system for enzyme cascades, metabolic signal transduction, signaling pathways, catalytic chemical reaction networks, and immunology'20148,639,037'High-performance closed-form single-scan calculation of oblong-shape rotation angles from image data of arbitrary size and location using running sums'20148,620,643'Auditory eigenfunction systems and methods'20138,606,414'Multi-channel chemical transport bus providing short-duration burst transport using sensors for microfluidic and other applications'20138,601,056'Scalable high-performance interactive real-time media architectures for virtual desktop environments'20138,594,848'Reconfigurable chemical process systems'20138,565,355'Pulse signal waveform asymmetry identification utilizing symbolic dynamics'20138,560,130'Software controlled lab-on-a-chip emulation'20138,553,329'Monolithic or hybrid integrated optical information processor employing a plurality of controllable optical transfer functions at fractional fourier planes'20138,542,945'Correction of mis-focus in recorded images using centered discrete fractional fourier transformations with high-accuracy orthonormal eigenvectors'20138,531,251'Through-zero pulse-width modulation process with period-average-zero'2013RE044469'Nanoelectronic differential amplifiers and related circuits having graphene nanoribbons'20138,522,184'Hierachically-modular nanoelectronic differential amplifiers, op amps, and associated current sources utilizing carbon nanotubes, graphene nanoribbons, printed electronics, polymer semiconductors, or other related materials'20138,519,250'Controlling and enhancing electronic musical instruments with video'20138,509,542'High-performance closed-form single-scan calculation of oblong-shape rotation angles from binary images of arbitrary size and location using running sums'20138,440,902'Interactive multi-channel data sonification to accompany data visualization with partitioned timbre spaces using modulation of timbre as sonification information carriers'20138,442,341'Correction of unfocus and misfocus via origin-centered discrete fractional fourier transform'20138,442,342'Generation of image data with correction for optical misfocus utilizing fractional powers of the fourier transform operator'20138,396,701'Software systems for development, control, programming, simulation, and emulation of fixed and reconfigurable lab-on-a-chip devices'20138,324,555'Nanoelectronic differential amplifiers and related circuits implemented on a segment of a graphene nanoribbon'20128,325,763'Aggregated unified communication bandwidth management system for control by human operator'20128,325,762'Aggregated network communication bandwidth management information display system'20128,309,833'Multi-channel data sonification in spatial sound fields with partitioned timbre spaces using modulation of timbre and rendered spatial location as sonification information carriers'20128,309,835'Signal distribution within modular structures facilitating aggregated and field-customized musical instruments'20128,305,480'Synthetic image formation via signal processing for vignetted optoelectronic arrays, lensless cameras, and integrated camera-displays'20128,284,290'Synthetic image formation signal processing hardware for vignetted optoelectronic arrays, lensless cameras, and integrated camera-displays'20128,247,677'Multi-channel data sonification system with partitioned timbre spaces and modulation techniques'20128,170,346'High-performance closed-form single-scan calculation of oblong-shape rotation angles from binary images of arbitrary size using running sums'20128,164,832'Programmable optical computing device employing LED array transducers and stacked light modulator elements in fractional fourier planes'20128,125,559'Image formation for large photosensor array surfaces'20128,094,961'Generation of image data with correction for optical misfocus utilizing fractional powers of the fourier transform operator'20128,094,969'Discrete fractional fourier numerical environments for computer modeling of image propagation through a physical medium in restoration and other applications'20128,035,024'Phase-staggered multi-channel signal panning'20118,032,258'Multi-channel chemical transport bus for microfluidic and other applications'20118,030,565'Signal processing for twang and resonance'20118,030,566'Envelope-controlled time and pitch modification'20118,030,567'Generalized electronic music interface'20118,013,286'Nanoelectronic differential amplifiers and related circuits having graphene nanoribbons'20117,960,640'Derivation of control signals from real-time overtone measurements'20117,911,698'Programmable optical processing device employing stacked controllable phase shifting elements in fractional fourier planes'20117,908,320'Tracking user locations over multiple networks to enable real time communications'2011RE042187'Iterative approximation environments for modeling the evolution of an image propagating through a physical medium in restoration and other applications'20117,873,130'Frequency comparator utilizing enveloping-event detection via symbolic dynamics of fixed or modulated waveforms'20117,858,918'Molecular transistor circuits compatible with carbon nanotube sensors and transducers'20107,838,809'Nanoelectronic differential amplifiers and related circuits having carbon nanotubes, graphene nanoribbons, or other related materials'20107,830,219'Variable pulse-width modulation with zero D.C. average in each period'20107,831,663'Storage and playback of media files'20107,822,813'Storing and accessing media files'20107,786,370'Processing and generation of control signals for real-time control of music signal processing, mixing, video, and lighting'20107,767,902'String array signal processing for electronic musical instruments'20107,759,571'Transcending extensions of classical south Asian musical instruments'20107,738,492'Network communication bandwidth management'20107,732,702'Modular structures facilitating aggregated and field-customized musical instruments'20107,730,132'Storing and accessing media files'20107,697,777'Computing arbitrary fractional powers of a transform operator from selected precomputed fractional powers of the operator'20107,652,208'Signal processing for cross-flanged spatialized distortion'20107,638,704'Low frequency oscillator providing phase-staggered multi-channel midi-output control-signals'20097,627,195'Focus correction using fractional fourier transform operator approximations'20097,620,915'Electronic document editing employing multiple cursors'20097,608,776'Modular structures facilitating field-customized floor controllers'20097,609,447'Programmable optical processing device employing stacked light modulator elements in fractional Fourier planes'20097,557,797'Mouse-based user interface device providing multiple parameters and modalities'20097,507,902'Transcending extensions of traditional East Asian musical instruments'20097,487,210'Method for managing real-time communications'20097,444,373'Wireless real-time communication'20087,441,001'Real-time wide-area communications between ports'20087,437,411'Communication of a selected type over a wide area network'20087,437,412'Real-time communication of a selected type'20087,433,921'System for real-time communication between plural users'20087,421,470'Method for real-time communication between plural users'20087,417,185'Modular structures for interchangeable musical instrument neck arrangements'20087,412,482'System for managing real-time communications'20087,408,108'Multiple-paramenter instrument keyboard combining key-surface touch and key-displacement sensor arrays'20087,398,296'Networked audio communication over two networks'20087,391,570'Programmable optical processing device employing multiple controllable light modulator elements in fractional fourier transform planes'20087,309,829'Layered signal processing for individual and group output of multi-channel electronic musical instruments'20077,309,828'Hysteresis waveshaping'20077,217,878'Performance environments supporting interactions among performers and self-organizing processes'20077,206,809'Method for real-time communication between plural users'20077,203,377'Computing arbitrary fractional powers of a transform operator from selected precomputed fractional powers of the operator'20077,185,054'Participant display and selection in video conference calls'20077,152,093'System for real-time communication between plural users'20067,054,904'Marking and searching capabilities in multimedia documents within multimedia collaboration networks'20067,054,504'Relative optical path phase reconstruction in the correction of misfocused images using fractional powers of the fourier transform'20067,038,123'Strumpad and string array processing for musical instruments'20067,039,252'Iterative approximation environments for modeling the evolution of an image propagating through a physical medium in restoration and other applications'20066,972,905'Non-positive-definite optical filtering from positive-definite transfer functions'20056,972,786'Multimedia services using central office'20056,959,322'UTP based video conferencing'20056,898,620'Multiplexing video and control signals onto UTP'20056,852,919'Extensions and generalizations of the pedal steel guitar'20056,849,795'Controllable frequency-reducing cross-product chain'20056,816,904'Networked video multimedia storage server environment'20046,789,105'Multiple-editor authoring of multimedia documents including real-time video and time-insensitive media'20046,689,947'Real-time floor controller for control of music, signal processing, mixing, video, lighting, and other systems'20046,687,418'Correction of image misfocus via fractional fourier transform'20046,650,476'Image processing utilizing non-positive-definite transfer functions via fractional fourier transform'20036,610,917'Activity indication, external source, and processing loop provisions for driven vibrating-element environments'20036,594,688'Dedicated echo canceler for a workstation'20036,583,806'Videoconferencing hardware'20036,570,078'Tactile, visual, and array controllers for real-time control of music signal processing, mixing, video, and lighting'20036,437,818'Video conferencing on existing UTP infrastructure'20026,426,769'High-quality switched analog video communications over unshielded twisted pair'20026,351,762'Method and system for log-in-based video and multimedia calls'20026,343,314'Remote participant hold and disconnect during videoconferencing'20026,237,025'Multimedia collaboration system'20016,212,547'UTP based video and data conferencing'20016,081,291'Methods and systems for multimedia communication via public telephone networks'20005,978,835'Multimedia mail, conference recording and documents in video conferencing'19995,915,091'Synchronization in video conferencing'19995,896,500'System for call request which results in first and second call handle defining call state consisting of active or hold for its respective AV device'19995,884,039'System for providing a directory of AV devices and capabilities and call processing such that each participant participates to the extent of capabilities available'19995,867,654'Two monitor videoconferencing hardware'19995,854,893'System for teleconferencing in which collaboration types and participants by names or icons are selected by a participant of the teleconference'19985,802,294'Teleconferencing system in which location video mosaic generator sends combined local participants images to second location video mosaic generator for displaying combined images'19985,758,079'Call control in video conferencing allowing acceptance and identification of participants in a new incoming call during an active teleconference'19985,751,338'Methods and systems for multimedia communications via public telephone networks'19985,689,641'Multimedia collaboration system arrangement for routing compressed AV signal through a participant site without decompressing the AV signal'19975,617,539'Multimedia collaboration system with separate data network and A/V network controlled by information transmitting on the data network'1997Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1997–2000Based in Foster City, CA, US· patent location history
1998–2007Patents assigned to COLLABORATION PROPERTIES INC (23)· patent assignee history
1998–2014Based in Hillsborough, CA, US· patent location history
2003–2017Based in Belmont, CA, US· patent location history
2005–2020Patents assigned to LUDWIG LESTER F (135)· patent assignee history
2005–2017Based in Redwood Shores, CA, US· patent location history
2008–2015Patents assigned to AVISTAR COMM CORP (24)· patent assignee history
2013–2017Patents assigned to LUDWIG LESTER (9)· patent assignee history
2014–2021Based in San Antonio, TX, US· patent location history
2017–2021Patents assigned to NRI R&D PATENT LICENSING LLC (29)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| LUDWIG LESTER Fself | 135 | 2005–2020 |
| NRI R&D PATENT LICENSING LLC | 29 | 2017–2021 |
| AVISTAR COMM CORP | 24 | 2008–2015 |
| COLLABORATION PROPERTIES INC | 23 | 1998–2007 |
| LUDWIG LESTERself | 9 | 2013–2017 |
Locations
| Location | Patents | Span |
|---|---|---|
| Redwood Shores, California, US | 60 | 2005–2017 |
| Belmont, California, US | 59 | 2003–2017 |
| San Antonio, Texas, US | 57 | 2014–2021 |
| Hillsborough, California, US | 25 | 1998–2014 |
| Foster City, California, US | 10 | 1997–2000 |