Other

Washington University

Jonathan K George

Volker J Sorger

Clark C Davis

Jonathan D Roberts

Ian W Davis

A digital-to-analog converter has a first interface coupled to a second interface through one or more modulation circuits. The circuits include a first coupler connected to the first interface; a first waveguide with a first lead connected to the first coupler, a first end, and a first length running therebetween. The first lead and the first end are coupled by a first switch. The circuits also include: a second coupler connected to the first interface; a second waveguide having a second lead connected to the second coupler, a second end, and a second length running therebetween, the second lead and the second end coupled by a second switch along the second length; and an optical combiner connected to the ends of the waveguides. The second interface is connected to the optical combiner of the modulation circuits. Output from the second interface is an optical signal capable of carrying binary information.

Optical digital to analog converter using electro-modulated waveguides

The ability to rapidly identify symmetry and anti-symmetry is an essential attribute of intelligence. Symmetry perception is a central process in human vision and may be key to human 3D visualization. While previous work in understanding neuron symmetry perception has concentrated on the neuron as an integrator, the invention provides the coincidence detecting property of the spiking neuron can be used to reveal symmetry density in spatial data. A synchronized symmetry-identifying spiking artificial neural network enables layering and feedback in the network. The network of the invention can identify symmetry density between sets of data and present a digital logic implementation demonstrating an 8&#xd7;8 leaky-integrate-and-fire symmetry detector in a field-programmable gate array. The efficiency of spiking neural networks can be harnessed to rapidly identify symmetry in spatial data with applications in image processing, 3D computer vision, and robotics.

Identifying mirror symmetry density with delay in spiking neural networks

Optical digital to analog converter using seriated splitters

A force engine operable to counterbalance a load. The force engine includes one or more energy reservoirs operable to store energy. The one or more energy reservoirs are operable to generate a force to balance the load through the displacement in an operating mode. A traveling member is hingedly connected to the one or more energy reservoirs. The force generated by the one or more energy reservoirs is transferred to the load through the traveling member and an associated linkage. A variable member is coupled to the one or more energy reservoirs. In the adjusting mode the variable member is displaced to configure an operating relationship between the one or more energy reservoirs and the traveling member. A release interacts with the variable member to fix a position of the variable member.

System and method for an automatically adjusting force engine and assisted storage

A synthetic focal plane imaging system senses electromagnetic radiation as a distribution of energy over time rather than as a distribution of energy over space. A spatial context independent of the energy detection is developed. The synthetic focal plane imaging system includes an aperture, a mask, an electromagnetic sensor, and a computer configured to receive sample energy data and shutter modeling data from the mask to generate hyperspectral images. The synthetic focal plane imaging system incorporates a spiral rotating mask to create theta-space rotational masking architectures resulting in simple cyclical linear equations that can be processed quickly and efficiently to generate the hyperspectral images. The system captures image content at multiple wavelengths, electronically processes the resulting data as an image cube with stacked layers of images. Each layer corresponds to a particular wavelength of the imaged object with the same physical locations arranged on top of each other to form the stack.

Synthetic focal plane imager

A system for addressing electrical signals is disclosed, comprising an electromagnetically conductive control element, at least one control signal, at least one electromagnetic pulse modulator associated with the control element, and a threshold element positioned proximate to the control element, having an electromagnetic resistance that is conditional and changes as a result of fluctuations in the electromagnetic field of the control element.

Growing community of inventors

Arlington, VA, United States of America

Jonathan K George