Inventor · disambiguated record
Lester F. Ludwig
Also filed as: LUDWIG JR LESTER FRANK · LUDWIG LESTER · LUDWIG LESTER F · LUDWIG LESTER FRANK
217 granted patents·60 pending applications·12,523 citations·filing 1993–2022
99Inventor score
Files withLUDWIG LESTER F167COLLABORATION PROPERTIES INC27NRI R&D PATENT LICENSING LLC23AVISTAR COMM CORP19LUDWIG LESTER6
Top patents by PatentIndex Score
277 records- 0199US8878810B2Touch screen supporting continuous grammar touch gesturesLUDWIG LESTER F·Filed 2014·Granted Nov 4, 2014·62 cites·13 claims
- 0299US8866785B2Sensor array touchscreen recognizing finger flick gestureLUDWIG LESTER F·Filed 2013·Granted Oct 21, 2014·60 cites·17 claims
- 0399US8830375B2Vignetted optoelectronic array for use in synthetic image formation via signal processing, lensless cameras, and integrated camera-displaysLUDWIG LESTER F·Filed 2010·Granted Sep 9, 2014·186 cites·17 claims
- 0499US8743076B1Sensor array touchscreen recognizing finger flick gesture from spatial pressure distribution profilesLUDWIG LESTER F·Filed 2014·Granted Jun 3, 2014·67 cites·18 claims
- 0599US7433921B2System for real-time communication between plural usersAVISTAR COMM CORP·Filed 2003·Granted Oct 7, 2008·383 cites·34 claims
- 0699US7206809B2Method for real-time communication between plural usersCOLLABORATION PROPERTIES INC·Filed 2003·Granted Apr 17, 2007·328 cites·42 claims
- 0799US7152093B2System for real-time communication between plural usersCOLLABORATION PROPERTIES INC·Filed 2003·Granted Dec 19, 2006·260 cites·49 claims
- 0899US6594688B2Dedicated echo canceler for a workstationCOLLABORATION PROPERTIES INC·Filed 2001·Granted Jul 15, 2003·377 cites·57 claims
- 0999US6583806B2Videoconferencing hardwareCOLLABORATION PROPERTIES INC·Filed 1997·Granted Jun 24, 2003·549 cites·21 claims
- 1099US6570078B2Tactile, visual, and array controllers for real-time control of music signal processing, mixing, video, and lightingFiled 2001·Granted May 27, 2003·220 cites·16 claims
- 1199US6437818B1Video conferencing on existing UTP infrastructureCOLLABORATION PROPERTIES INC·Filed 1998·Granted Aug 20, 2002·319 cites·36 claims
- 1299US5915091ASynchronization in video conferencingCOLLABORATION PROPERTIES INC·Filed 1996·Granted Jun 22, 1999·295 cites·35 claims
- 1399US5854893ASystem for teleconferencing in which collaboration types and participants by names or icons are selected by a participant of the teleconferenceCOLLABORATION PROPERTIES INC·Filed 1996·Granted Dec 29, 1998·453 cites·24 claims
- 1499US5758079ACall control in video conferencing allowing acceptance and identification of participants in a new incoming call during an active teleconferenceVICOR INC·Filed 1996·Granted May 26, 1998·724 cites·37 claims
- 1599US5689641AMultimedia collaboration system arrangement for routing compressed AV signal through a participant site without decompressing the AV signalVICOR INC·Filed 1993·Granted Nov 18, 1997·772 cites·43 claims
- 1699US5617539AMultimedia collaboration system with separate data network and A/V network controlled by information transmitting on the data networkVICOR INC·Filed 1996·Granted Apr 1, 1997·983 cites·17 claims
- 1798US8717303B2Sensor array touchscreen recognizing finger flick gesture and other touch gesturesLUDWIG LESTER F·Filed 2007·Granted May 6, 2014·68 cites·36 claims
- 1898US8170346B2High-performance closed-form single-scan calculation of oblong-shape rotation angles from binary images of arbitrary size using running sumsLUDWIG LESTER F·Filed 2010·Granted May 1, 2012·61 cites·10 claims
- 1998US7421470B2Method for real-time communication between plural usersAVISTAR COMM CORP·Filed 2003·Granted Sep 2, 2008·146 cites·52 claims
- 2098US7408108B2Multiple-paramenter instrument keyboard combining key-surface touch and key-displacement sensor arraysLUDWIG LESTER F·Filed 2003·Granted Aug 5, 2008·73 cites·69 claims
- 2198US7185054B1Participant display and selection in video conference callsCOLLABORATION PROPERTIES INC·Filed 2000·Granted Feb 27, 2007·292 cites·22 claims
- 2298US6689947B2Real-time floor controller for control of music, signal processing, mixing, video, lighting, and other systemsFiled 2001·Granted Feb 10, 2004·212 cites·122 claims
- 2398US6351762B1Method and system for log-in-based video and multimedia callsCOLLABORATION PROPERTIES INC·Filed 1996·Granted Feb 26, 2002·326 cites·74 claims
- 2498US5978835AMultimedia mail, conference recording and documents in video conferencingCOLLABORATION PROPERTIES INC·Filed 1996·Granted Nov 2, 1999·260 cites·23 claims
- 2598US5896500ASystem for call request which results in first and second call handle defining call state consisting of active or hold for its respective AV deviceCOLLABORATION PROPERTIES INC·Filed 1996·Granted Apr 20, 1999·246 cites·20 claims
- 2698US5884039ASystem for providing a directory of AV devices and capabilities and call processing such that each participant participates to the extent of capabilities availableCOLLABORATION PROPERTIES INC·Filed 1996·Granted Mar 16, 1999·341 cites·36 claims
- 2797US7557797B2Mouse-based user interface device providing multiple parameters and modalitiesLUDWIG LESTER F·Filed 2004·Granted Jul 7, 2009·86 cites·60 claims
- 2897US7412482B2System for managing real-time communicationsAVISTAR COMM CORP·Filed 2007·Granted Aug 12, 2008·42 cites·20 claims
- 2997US6789105B2Multiple-editor authoring of multimedia documents including real-time video and time-insensitive mediaCOLLABORATION PROPERTIES INC·Filed 2002·Granted Sep 7, 2004·130 cites·12 claims
- 3097US6237025B1Multimedia collaboration systemCOLLABORATION PROPERTIES INC·Filed 1997·Granted May 22, 2001·712 cites·44 claims
- 3196US7730132B2Storing and accessing media filesLUDWIG LESTER F·Filed 2007·Granted Jun 1, 2010·27 cites·17 claims
- 3296US7487210B2Method for managing real-time communicationsAVISTAR COMM CORP·Filed 2007·Granted Feb 3, 2009·41 cites·20 claims
- 3396US7444373B2Wireless real-time communicationAVISTAR COMM CORP·Filed 2007·Granted Oct 28, 2008·23 cites·20 claims
- 3496US5751338AMethods and systems for multimedia communications via public telephone networksVISIONARY CORPORATE TECHNOLOGI·Filed 1994·Granted May 12, 1998·398 cites·42 claims
- 3595US8716585B2Customizable electronic musical instrument and user interfaceLUDWIG LESTER F·Filed 2012·Granted May 6, 2014·16 cites·20 claims
- 3695US8601056B2Scalable high-performance interactive real-time media architectures for virtual desktop environmentsLAUWERS JOZEF PAUL C·Filed 2010·Granted Dec 3, 2013·82 cites·16 claims
- 3795US7908320B2Tracking user locations over multiple networks to enable real time communicationsPRAGMATUS AV LLC·Filed 2005·Granted Mar 15, 2011·36 cites·36 claims
- 3895US7838809B2Nanoelectronic differential amplifiers and related circuits having carbon nanotubes, graphene nanoribbons, or other related materialsLUDWIG LESTER F·Filed 2008·Granted Nov 23, 2010·30 cites·14 claims
- 3995US7767902B2String array signal processing for electronic musical instrumentsLUDWIG LESTER F·Filed 2005·Granted Aug 3, 2010·20 cites·28 claims
- 4095US7638704B2Low frequency oscillator providing phase-staggered multi-channel midi-output control-signalsLUDWIG LESTER F·Filed 2005·Granted Dec 29, 2009·20 cites·40 claims
- 4195US6852919B2Extensions and generalizations of the pedal steel guitarFiled 2003·Granted Feb 8, 2005·43 cites·88 claims
- 4295US6212547B1UTP based video and data conferencingCOLLABORATION PROPERTIES INC·Filed 1998·Granted Apr 3, 2001·133 cites·45 claims
- 4394US9632344B2Use 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 capabilitiesLUDWIG LESTER F·Filed 2013·Granted Apr 25, 2017·14 cites·20 claims
- 4494US8869141B2Scalable high-performance interactive real-time media architectures for virtual desktop environmentsLAUWERS JOZEF PAUL C·Filed 2010·Granted Oct 21, 2014·32 cites·18 claims
- 4594US7217878B2Performance environments supporting interactions among performers and self-organizing processesLUDWIG LESTER F·Filed 2003·Granted May 15, 2007·35 cites·83 claims
- 4694US7038123B2Strumpad and string array processing for musical instrumentsLUDWIG LESTER F·Filed 2003·Granted May 2, 2006·41 cites·139 claims
- 4794US6816904B1Networked video multimedia storage server environmentCOLLABORATION PROPERTIES INC·Filed 2000·Granted Nov 9, 2004·468 cites·22 claims
- 4894US6081291AMethods and systems for multimedia communication via public telephone networksVCT INC·Filed 1997·Granted Jun 27, 2000·193 cites·42 claims
- 4993US8949316B2Scalable high-performance interactive real-time media architectures for virtual desktop environmentsLAUWERS JOZEF PAUL C·Filed 2010·Granted Feb 3, 2015·28 cites·16 claims
- 5093US8878807B2Gesture-based user interface employing video cameraLUDWIG LESTER F·Filed 2013·Granted Nov 4, 2014·7 cites·19 claims
Showing the top 50 of 277 patent records by PatentIndex Score.
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