Inventor
David J. Knapp
Inventor
Austin, TX, US
Overview
Patents· 91 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Lprimary
H04LTransmission of digital information, e.g. telegraphic communication15%
H05BElectric heating13%
G02BOptical elements, systems or apparatus7%
F41GWeapon sights6%
H04JMultiplex communication5%
H04BTransmission4%
F21KNon-electric light sources using luminescence4%
F21YIndexing scheme associated with subclasses f21k, f21l, f21s and f21v, relating to the form or the kind of the light sources or of the colour of the light emitted4%
G01JMeasurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet light4%
H01QAntennas, i.e. radio aerials3%
PatentTitleYear
RE048452LED illumination device and calibration method for accurately characterizing the emission LEDs and photodetector(s) included within the LED illumination device202110,847,026Visible light communication system and method202010,767,835Color mixing optics for LED illumination device202010,615,479Ultra-wideband RF/optical aperture202010,595,372Illumination device and method for calibrating an illumination device over changes in temperature, drive current, and time202010,302,276Color mixing optics having an exit lens comprising an array of lenslets on an interior and exterior side thereof201910,210,750System and method of extending the communication range in a visible light communication system201910,151,635Real time correction of optical window thermal gradients20189,848,482Intelligent illumination device20179,769,899'Illumination device and age compensation method'20179,736,895'Color mixing optics for LED illumination device'20179,736,903'Illumination device and method for calibrating and controlling an illumination device comprising a phosphor converted LED'20179,719,924'Wideband antenna structure with optics reflector as ground plane and associated methods'20179,698,458'UWB and IR/optical feed circuit and related techniques'20179,668,314'Linear LED illumination device with improved color mixing'20179,651,632'Illumination device and temperature calibration method'20179,578,724'Illumination device and method for avoiding flicker'20179,557,214'Illumination device and method for calibrating an illumination device over changes in temperature, drive current, and time'20179,509,525'Intelligent illumination device'20169,485,813'Illumination device and method for avoiding an over-power or over-current condition in a power converter'20169,392,663'Illumination device and method for controlling an illumination device over changes in drive current and temperature'20169,386,668'Lighting control system'20169,360,174'Linear LED illumination device with improved color mixing'20169,347,743'Offset aperture dual-gimbaled optical system'20169,335,126'Offset aperture gimbaled optical system with optically corrected conformal dome'20169,295,112'Illumination devices and related systems and methods'20169,276,766'Display calibration systems and related methods'20169,237,612'Illumination device and method for determining a target lumens that can be safely produced by an illumination device at a present temperature'20169,237,620'Illumination device and temperature compensation method'20169,237,623'Illumination device and method for determining a maximum lumens that can be safely produced by the illumination device to achieve a target chromaticity'20169,118,937'Real-time video transmission system'20158,991,085'Electrical weapon system'20158,885,478'System and method for transferring data packets through a communication system'20148,886,047'Optical communication device, method and system'20148,773,336'Illumination devices and related systems and methods'20148,773,300'Antenna/optics system and method'20148,749,172'Luminance control for illumination devices'20148,674,913'LED transceiver front end circuitry and related methods'20148,606,382'System and method for transferring non-compliant packetized and streaming data into and from a multimedia device coupled to a network across which compliant data is sent'20138,521,035'Systems and methods for visible light communication'20138,471,496'LED calibration systems and related methods'20138,466,407'Stray light baffles for a conformal dome with arch corrector optics'20138,456,092'Broad spectrum light source calibration systems and related methods'20138,416,127'Dynamic calibration radar system'20138,179,787'Fault tolerant network utilizing bi-directional point-to-point communications links between nodes'20128,103,174'Transmission network having an optical receiver that utilizes dual power pins and a single status pin to lower power consumption, lower manufacturing cost, and increase transmission efficiency'20127,912,381'Transmission network having an optical receiver that utilizes dual power pins and a single status pin to lower power consumption, lower manufacturing cost, and increase transmission efficiency'20117,809,023'Communication system and method for sending isochronous streaming data within a frame segment using a signaling byte'20107,801,159'Communication system and method for sending isochronous streaming data within a frame segment using a signaling byte'20107,702,405'System and method for transferring non-compliant packetized and streaming data into and from a multimedia device coupled to a network across which compliant data is sent'20107,667,190'Optical fiber assembly wrapped across roll-nod gimbal axes in a DIRCM system'20107,664,214'System and method for transferring data among transceivers substantially void of data dependent jitter'20107,634,694'Selective scrambler for use in a communication system and method to minimize bit error at the receiver'20097,609,797'Circuit, system, and method for preventing a communication system absent a dedicated clocking master from producing a clocking frequency outside an acceptable range'20097,541,994'Refractive compact range'20097,327,742'Communication system and method for sending isochronous streaming data within a frame segment using a signaling byte'20087,304,296'Optical fiber assembly wrapped across gimbal axes'20077,283,564'Communication system and method for sending asynchronous data and/or isochronous streaming data across a synchronous network within a frame segment using a coding violation to signify at least the beginning of a data transfer'20077,272,202'Communication system and method for generating slave clocks and sample clocks at the source and destination ports of a synchronous network using the network frame rate'20077,268,368'Semiconductor package having optical receptacles and light transmissive/opaque portions and method of making same'20077,174,835'Covert tracer round'20077,164,691'Communication system and method for sending isochronous streaming data across a synchronous network within a frame segment using a coding violation to signify invalid or empty bytes within the frame segment'20077,158,596'Communication system and method for sending and receiving data at a higher or lower sample rate than a network frame rate using a phase locked loop'20077,106,224'Communication system and method for sample rate converting data onto or from a network using a high speed frequency comparison technique'20067,042,654'Optical system having a transmission optical corrector with a selectively nonuniform passive transmission optical property'20067,019,320'Liquid filled conformal windows and domes'20066,992,275'Night vision apparatus'20066,880,467'Covert tracer round'20056,874,048'Communication system and methodology for sending a designator for at least one of a set of time-division multiplexed channels forwarded across a locally synchronized bus'20056,871,817'System containing an anamorphic optical system with window, optical corrector, and sensor'20056,763,060'Communication system employing a network of power managed transceivers that can generate a clocking signal or enable data bypass of a digital system associated with each transceiver'20046,747,738'Optical system with variable dispersion'20046,531,989'Far field emulator for antenna calibration'20036,530,392'Valve cleaning assembly'20036,516,453'Method for timing analysis during automatic scheduling of operations in the high-level synthesis of digital systems'20036,470,486'Method for delay-optimizing technology mapping of digital logic'20026,437,710'Encoder within a communication system that avoids encoded DC accumulation and can use coding violations to synchronize a decoder and detect transmission errors'20026,343,767'Missile seeker having a beam steering optical arrangement using risley prisms'20026,344,937'Beam steering optical arrangement using Risley prisms with surface contours for aberration correction'20026,313,951'Optical system with zernike-shaped corrector'20016,310,730'Optical system with asymmetric optical corrector'20016,263,714'Periodic gauge deviation compensation system'20016,057,791'Apparatus and method for clocking digital and analog circuits on a common substrate to enhance digital operation and reduce analog sampling error'20006,049,254'Phase-locked loop which can automatically adjust to and lock upon a variable input frequency'20006,005,904'Phase-locked loop with protected output during instances when the phase-locked loop is unlocked'19995,826,072'Pipelined digital signal processor and signal processing system employing same'19985,753,605'High Temperature flash point stable microemulsion cleaning composition'19985,341,663'Automatic process control and noise suppression'19944,746,899'Method for reducing effects of electrical noise in an analog-to-digital converter'19884,678,023'Closed loop delivery gauge control in roll casting'19874,660,586'Liquid level control'1987Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1988–2021Based in Austin, TX, US· patent location history
1994–2001Based in Knoxville, TN, US· patent location history
1998–2003Based in Rochester, NY, US· patent location history
2001–2020Patents assigned to RAYTHEON CO (25)· patent assignee history
2001–2020Based in Tucson, AZ, US· patent location history
2002–2003Based in San Jose, CA, US· patent location history
2006–2013Patents assigned to STANDARD MICROSYST SMC (16)· patent assignee history
2012–2016Patents assigned to KNAPP DAVID J (15)· patent assignee history
2013–2017Patents assigned to KETRA INC (25)· patent assignee history
2019–2020Patents assigned to LUTRON KETRA LLC (5)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| KETRA INC | 25 | 2013–2017 |
| RAYTHEON CO | 25 | 2001–2020 |
| STANDARD MICROSYST SMC | 16 | 2006–2013 |
| KNAPP DAVID Jself | 15 | 2012–2016 |
| LUTRON KETRA LLC | 5 | 2019–2020 |
Locations
| Location | Patents | Span |
|---|---|---|
| Austin, Texas, US | 58 | 1988–2021 |
| Tucson, AZ, US | 25 | 2001–2020 |
| Rochester, New York, US | 2 | 1998–2003 |
| San Jose, California, US | 2 | 2002–2003 |
| Knoxville, TN, US | 2 | 1994–2001 |