Stories
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Briefs: Electronics & Computers
An Internet-based software system, called the "Web Interface for Telescience" (WITS), enables geographically dispersed scientists to participate in scientific exploration of remote planets by use of...
Briefs: Electronics & Computers
An application-specific integrated circuit (ASIC) has been developed as a prototype of neuroprocessors for real-time diagnosis and control of automotive engines. The application of this...
Briefs: Electronics & Computers
Multiple-beam transmission has been proposed to reduce the deleterious effects of atmospheric turbulence on free-space laser communications - especially on uplinks from ground stations to...
Briefs: Electronics & Computers
Efforts are underway to develop an electron-tunneling magnetometer with a "planarized" (as explained below) design. Older designs of electron-tunneling magnetometers are more three-dimensional in...
Briefs: Electronics & Computers
The term "space cube" denotes a scheme for three-dimensional stacking and interconnection of electronic-circuit modules. [This scheme should not be confused with a related one...
Briefs: Electronics & Computers
Micromachined Photodiode/Bolometer Arrays
Micromachined planar arrays of detectors that could operate either as photodiodes or as bolometers have been proposed for use in detecting photons in applications in which broad spectral responses are required. The availability of either of the two modes would enable operation throughout the spectrum, from...
Briefs: Photonics/Optics
Sponsored by a NASA Small Business Innovation Research (SBIR) Phase II contract, MetroLaser, Inc., has developed a novel, compact and low-cost laser Doppler vibrometer (LDV) under the...
Briefs: Electronics & Computers
A technique for adjusting the resonance frequency of a single-mode round cylindrical microwave cavity has been proposed to maximize the transfer of power from a magnetron to one or more...
Briefs: Electronics & Computers
Most current radar scanning antennas utilize mechanical scanning, relying on a gimbal, motor, and gear arrangements to physically rotate/elevate the antenna. This technique is slow, gravity-sensitive, and...
Briefs: Mechanical & Fluid Systems
Magnetostatic switches — switches that open or close in response to magnetic fields — are being developed and fabricated using micromachining (MEMS) technology. These switches operate similarly to...
Briefs: Electronics & Computers
An information-reduced carrier-synchronization (IRCS) system has been proposed for use in a coded binary-phase-shift-keying (BPSK) radio-communication receiver...
Briefs: Electronics & Computers
Modules of electronic circuitry that perform the amplitude- and phase-control and the status-monitoring functions for eight-element (2 ×4) subarrays of K-band phased-array antennas...
Briefs: Electronics & Computers
A concept for optimizing the designs of two-wavelength GaAs-based quantum-well infrared photodetectors (QWIPs) could make it practical to use focal-plane arrays of QWIPs as image sensors in...
Briefs: Electronics & Computers
A developmental electronic system that includes Global Positioning System (GPS) receivers is designed to track the relative position and velocity to two airplanes in real time. In the...
Briefs: Electronics & Computers
The Production Support Flight Control Computers (PSFCCs) are flight-control computers that are being developed by NASA in conjunction with the United States Navy. These computers are...
Briefs: Electronics & Computers
Circuits to generate analog or digital representations of the coordinates of the centers of mass of images would be added to imaging photodetector arrays of the active-pixel-sensor...
Briefs: Electronics & Computers
The figure shows a complementary metal oxide/semiconductor (CMOS) integrated circuit that contains all of the electronic circuitry of a programmable active-pixel-sensor digital camera....
Briefs: Electronics & Computers
A program to demonstrate the feasibility of GaAs-based Kₐ-band power amplifiers has generated a number of technological advances. The goals of the program included (1) capability of amplifier...
Briefs: Electronics & Computers
Circuits to generate the intensity reading and the coordinates of the brightest pixel in each image would be added to imaging photodetector arrays of the active-pixel-sensor (APS) type, according...
Briefs: Electronics & Computers
Development of Circuitry for Wristband Radio Transponders
A document proposes the development of several alternative types of electronic circuits for wristband transponders for the system described in "Person-Locator System Based on Wristband Radio Transponders" (NPO-19280) NASA Tech Briefs, Vol. 19, No. 12 (December 1995), page 40. To...
Briefs: Electronics & Computers
Signal Preprocessor for Determining Time of Arrival
A proposed analog/digital circuit would improve the accuracy of determining the time of occurrence of a peak in an analog waveform. In the past, the time of occurrence of the peak was determined by comparing the magnitude of digital data samples. The time or clock pulse associated with the peak...
Briefs: Electronics & Computers
A "smart" video camera, called the "GI-Eye," generates digital image data that are automatically tagged with georegistration meta-data to indicate the precise position and attitude of the camera...
Briefs: Materials
By combining patented digital Silver-in-Glass® and analog conductive plastic technologies in a single environmentally sealed unibody package, Spectrol Electronics' DigiSense™...
Briefs: Electronics & Computers
Multiple-quantum-well AlxGa1 - xAs photodetectors that exploit transitions of electrons from quantum-well bound states to quasi-bound states are undergoing development for use at...
Briefs: Electronics & Computers
A proposed improved code-division multiple-access (CDMA) detector would achieve high resistance to jamming of weak ("far") received signals by strong ("near") ones. The problem of such...
Briefs: Electronics & Computers
Embedded CMOS A/D Converters for High-Speed Operation
Sarnoff Corporation has announced the development of four new analog-to-digital (A/D) converter macro cells for embedding in CMOS designs in which high-precision, high-speed operation at low power is important. The 8-bit, 10-bit, 12-bit, and dual 6-bit designs are available for licensing by...
Briefs: Electronics & Computers
An electronic engine-health-monitoring system is based on (1) computation of frequency-phase-normalized (FPN) spectra from the digitized outputs of vibration sensors and (2) the use of...
Briefs: Electronics & Computers
Focal-plane-array (FPA) hybrids of quantum-well infrared photodetectors (QWIPs) thinned to the membrane level are undergoing development. The developmental QWIPs in question are of the...
Briefs: Electronics & Computers
A process being developed for ultrathin packaging of multiple integrated-circuit chips and associated microelectromechanical components makes it possible to fabricate a minimally invasive...
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Webcasts
Webinars: Test & Measurement
From Spec to Scale: High-Precision Grinding Strategies for Tight-Tolerance...
Editorial Webinars: Electronics & Computers
High-Speed Connectivity for Next Generation Aerospace & Defense Systems
Webinars: Electronics & Computers
Electronics Digital Twins: From Concept to Scalable Platform
Webinars: Transportation
Architecting the Future: Why Systems Engineering is the Backbone of SDVs
Webinars: Energy
Engineering Fluid Conveyance Systems for Alternative Fuel On-Highway Vehicles
Editorial Webinars: Materials
Next-Generation Materials for Medical Devices: From Smart Polymers to...
