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Attorney: Alkov; Leonard A., Denson-Low; Wanda


Number of patents: 33
Last date: September 16, 1997

NumberTitleIssue Date
5668715Multiple output, zero voltage switching, series resonant VHF inverter
VHF DC to AC inverters which include switching circuitry (13, 115, 125) and multiple resonant waveshaping networks (C11, L11, C12; C21, L21, C22; C111, L111; C221, L221; C331, L331; C441, L441) connected between the switching circuitry and respective load...
09/16/1997
5218327Variable/switchable coupler
A waveguide coupler wherein the coupling of power from one waveguide arm to an adjacent waveguide arm through an aperture in a common wall may be switched on and off at very high speed or controlled from zero to a maximum level by appropriately controllin...
06/08/1993
5162963Surge eliminator for switching converters
A power supply including a source of AC power, a filter including inductive elements, and rectifying circuitry. Where the AC source comprises a sinewave source, the filter includes inductive and capacitive elements; and where the AC source comprises a squ...
11/10/1992
5159273Tri-state bus driver to support reconfigurable fault tolerant logic
A three-state driver circuit including a first gating circuit responsive to a first enable signal for selectively gating an input signal to provide a first gated signal at an internal node, a second gating means responsive to a second enable signal and co...
10/27/1992
5082337Filter device employing a holographic element
A filter device 10 and method of making the same is disclosed. The device comprises holographic means 12 for diffracting optical radiation of a first predetermined range of wavelengths, and optical radiation filter means 14 for filtering optical radiation...
01/21/1992
5055966Via capacitors within multi-layer, 3 dimensional structures/substrates
A capacitor structure in a hybrid multilayer circuit having a plurality of insulating layers, the capacitor structure including a dielectric via fill in a via formed in one of the insulating layers, a first conductive element overlying the dielectric via ...
10/08/1991
5052782Resilient lens mounting apparatus
Lens barrel (12) has a shoulder (16) therein and a retaining ring to retain lens (20) within the lens barrel. A canted coil spring member (24) is engaged between the retaining ring and lens to resiliently retain the lens in place against thermal cycling, ...
10/01/1991
5051754Optoelectronic wide bandwidth photonic beamsteering phased array
A transmit/receive circuit for each of the antenna elements of a radar phased array including an optical fiber true time delay circuit responsive to an electrical RF signal for providing an optical signal having a controlled time delay, an optical fiber f...
09/24/1991
5047756Video compensation apparatus for stroke mode CRT displays
A stroke-mode CRT display having a Z channel (video) compensation circuit is disclosed. The function of the compensation circuit to correct for the lag of the X and Y channels in relation to the Z channel. The compensation circuit is designed so that tran...
09/10/1991
5041472Syntactic foam energy absorber
An expendable syntactic foam energy absorber having application to vehicles comprising first hollow ceramic microspheres and substantially smaller hollow ceramic microspheres distributed to fill the interstices between the first microspheres. An elastomer...
08/20/1991
4984253Apparatus and method for processing simultaneous radio frequency signals
In a signal processing system, a weighting function is applied to incoming signal pulses in response to a signal edge detector. A weighting function is applied both to the detected large signal pulse and to the time surrounding the signal pulse within a w...
01/08/1991
4981332Dispersion-compensated windshield hologram virtual image display
A virtual image display including an image hologram, a dispersion compensating hologram for providing playback illumination to the image hologram, and an illumination source for providing playback illumination to the dispersion compensating hologram....
01/01/1991
4952922Predictive look ahead memory management for computer image generation in simulators
A method for use with a vehicle simulator which provides for the rapid update of displayed terrain data in areas of non-visible terrain surfaces and terrain image discontinuities. The method is for use with a system which projects a time-varying computer-...
08/28/1990
4941153High-speed digital data communication system
According to the invention, a high-speed digital data communication system employs current mode circuitry as input and output devices at the ends of a transmission line, such as the interconnections between integrated circuit chips. Specifically, a curren...
07/10/1990
4929892Process for electrically testing a component in transit to assembly and component test chuck
The process comprises the testing of an electrical component during transit from a pickup position to its attachment position. The process may be accomplished by the use of a component test chuck (30) which has four pivoted arms (66, 68, 70, 72), each car...
05/29/1990
4927262Multiple pupil projection display
Multiple pupils (16, 18) are formed in a projection display by employment of a field lens (14) which has at least first and second interleaved Fresnel lens segments. The first set of segments has the equivalent surface of a first lens (34) and the second ...
05/22/1990
4924232Method and system for reducing phase error in a phased array radar beam steering controller
The method and system for reducing phase error of phased array radar beam steering controllers having digitally controlled phase shifters includes the monitoring of individual digitally controlled phase shifter elements, determining an additive phase corr...
05/08/1990
4923771Diamond-shaped mask for making multiple exposure holograms
A method and apparatus for forming a multiple exposure hologram includes an object beam cut out mask 24 and reference beam cut out mask 60. Different segments of the masks are left uncovered during each exposure step and operate to shape the reference 18 ...
05/08/1990
4918373R.F. phase noise test set using fiber optic delay line
A noise test set for analyzing the presence of phase noise in a radar signal. A delay line discriminator using a fiber optic cable and laser light modulated by the radar signal are used. Both direct and indirect modulation techniques are disclosed, togeth...
04/17/1990
4918455Associative hierarchiacl deinterleaver
Sequential signal pulses from unknown sources are deinterleaved by clustering similar pulses into groups. The groups are used to form hypothetical pulse train models. If the hypotheticals are confirmed, they are used to deinterleave corresponding signal p...
04/17/1990
4916593Remotely illuminated transparent holographic stoplight for automobiles
A holographic stoplight assembly including a volume hologram having a recorded stoplight image secured adjacent to the inside surface of an automobile window. The volume hologram is selectively illuminated by an illumination source located out of the driv...
04/10/1990
4915574Obstacle detector
The obstacle detector (24) has an upper plate (32) which mounts on the arm (22) of the positioning machine. At least three springs (50) pull the lower plate (34) upward and three projections such as balls (36) provide precise location of the lower plate (...
04/10/1990
4910520High speed synthetic radar processing system
A synthetic aperture radar processing system receiving return data from a plurality of transmitted pulses which utilizes frequency alignment for partitioning the received data into patches of data in an orderly sequence, a plurality of patches of data bei...
03/20/1990
4898416Pickup device
Pickup device (24) is for mounting on the mounting plate of a positioning robot. The pickup device has a frame (30) which carries movable carriages (36, 38). Cam ring (50) controls the position of the carriages. Downwardly depending arms (60, 62) carry pa...
02/06/1990
4892369Holographic rear window stoplight
An improved holographic rear window stoplight is provided and includes a hologram member laminated to the rear window surface. Single or multiple hologram layers may be provided. The hologram layers can have a diffraction grating developed in a position r...
01/09/1990
4889780Multiple exposure hologram for minimizing crosstalk
A method and apparatus for forming a multiple exposure hologram includes an object beam cut out mask 24 and reference beam cut out mask 60. Different segments of the masks are left uncovered during each exposure step and operate to shape the reference 18 ...
12/26/1989
4885662Circuit module connection system
Circuit module connection system for connection of a modular package (18) to a printed wiring board (12) has a contact (24) on the package and an aligned pad (16) on the board. A resilient contact (44) is positioned therebetween and is held in place and s...
12/05/1989
4881580Fixture adapted for evacuating and filling heat pipes and similar closed vessels
A table carries guides for receiving and guiding a heat pipe. The heat pipe has a fill port which contains a valve. The heat pipe is thrust against the seal face of a block for evacuating and filling the fluid chamber of the heat pipe. A hex driver passes...
11/21/1989
4882587Electronically roll stabilized and reconfigurable active array system
An active array system is disclosed with electronic roll stabilization of the difference patterns, and with arbitrary partitioning of the phase scanned aperture with no hardware changes. The array system comprises a large number of radiating elements form...
11/21/1989
4882577Calligraphic control for image superimposition
A system is disclosed which allows two image signal sources with different update rates to timeshare a single calligraphic display monitor, such that the resulting image is a combination of the image data from both sources. The image signals from one sour...
11/21/1989
4882590Method for locating a radio frequency emitter
A radio frequency emitter transmits pulses in a regular swept beam pattern. As a result of this regular pattern, the angles of transmission of the pulses can be inferred. Intervisibility data of terrain points in a region around an observation point are s...
11/21/1989
4880287Complex conjugate hologram display
Aberration in an image reflected from a warped surface such as an automobile windshield is corrected by providing an image to the windshield which is predistorted to compensate for the aberration. The predistorted image is created and stored in a hologram...
11/14/1989
4878719Automotive wheel covers with spatially stabilized images
A vehicle wheel cover is provided with a reflection-type hologram assembly having multiple exposure images therein. The sun or an artificial light source illuminates the hologram assembly as it rotates as a result of the vehicle moving. The exposure image...
11/07/1989
 
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