Stories
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Briefs: Electronics & Computers
A proposed safety system would effect an inhibitory action when- ever a power tool was aimed in a direction outside a prescribed range of allowable directions. The power tool could be a...
Briefs: Electronics & Computers
A simple technique has been devised to reduce the number of lead wires needed to connect an array of thermocouples to the instruments (e.g., voltmeters) used to read their output voltages....
Briefs: Electronics & Computers
Devices that look and function much like conventional zippers on clothing have been proposed as connectors for flexible electronic circuits. Heretofore, flexible electronic circuits have...
Briefs: Electronics & Computers
Novel architectures based on parallel subconvolution frequency-domain filtering methods have been developed for modular processing rate reduction of discrete-time pulse-shaping filters. Such...
Briefs: Electronics & Computers
ModalMax is a very innovative means of harnessing the vibration of a piezoelectric actuator to produce an energy efficient low-profile device with high-bandwidth high-fidelity audio response. The...
Briefs: Electronics & Computers
The figure depicts a solar photovoltaic power station in which ultracapacitors, rather than batteries, are used to store energy. Developments in the semiconductor industry have reduced...
Briefs: Electronics & Computers
Parallel Subconvolution Filtering Architectures
These architectures are based on methods of vector processing and the discrete Fourier transform/inverse discrete Fourier transform (DFT-IDFT) overlap and save method, combined with time-block separation of digital filters into frequency-domain subfilters implemented by use of sub-convolutions. The...
Briefs: Electronics & Computers
Radio System for Locating Emergency Workers
A system based on low-power radio transponders and associated analog and digital electronic circuitry has been developed for locating firefighters and other emergency workers deployed in a building or other structure. The system has obvious potential for saving lives and reducing the risk of injuries.
Briefs: Electronics & Computers
A proposed successive approximation analog-to-digital converter (ADC) would contain a capacitively terminated chain of identical capacitor cells (see figure). Like a conventional successive...
Briefs: Electronics & Computers
A reduced-complexity alternative to an optimum FQPSK-B Viterbi receiver has been invented. As described below, the reduction in complexity is achieved at the cost of only a small...
Briefs: Electronics & Computers
A multilayer patch antenna, similar to a Yagi antenna, surrounded by a metallic wall has been devised to satisfy requirements to fit within a specified size and shape and to generate a beam...
Briefs: Motion Control
Standard induction motors, normally designed to run at base speeds between 850 to 3500 rpm, are not particularly well suited for low-speed operation, as their efficiency...
Briefs: Electronics & Computers
Power demand can be managed to reduce cost.
The Ames Power Monitoring System (APMS) is a centralized system of power meters, computer hardware, and special-purpose software that collects and stores electrical...
Briefs: Electronics & Computers
A subsystem for the adaptive suppression of noise in a voice-communication system effects a high level of reduction of noise that enters the system through microphones. The subsystem...
Briefs: Electronics & Computers
Integrated arrays of microscopic solid-state batteries have been demonstrated in a continuing effort to develop microscopic sources of power and of voltage reference...
Briefs: Electronics & Computers
The figure shows one of four solid-state power amplifiers, each capable of generating an output power ≥240 mW over one of four overlapping frequency bands from 71 to 106 GHz. (The bands are...
Briefs: Sensors/Data Acquisition
A relatively inexpensive instrumentation system that includes units that are connected to thermocouples and that are parts of a radio-communication network has been developed to enable monitoring of...
Briefs: Electronics & Computers
Very-large-scale integrated (VLSI) analog binaural signal-processing circuits have been proposed for use in detecting and locating leaks that emit noise in the ultrasonic frequency...
Briefs: Electronics & Computers
The cascade back-propagation (CBP) algorithm is the basis of a conceptual design for accelerating learning in artificial neural networks. The neural networks would be implemented as analog...
Briefs: Electronics & Computers
A number of display systems primarily used in specialized areas such as aviation, space (NASA), and military/defense employ non-standard video signal...
Briefs: Electronics & Computers
Suitably patterned arrays (blocks) of quantum-dot cellular automata (QCA) have been proposed as fault-tolerant universal logic gates. These block QCA gates could be used to realize the potential of QCA for...
Briefs: Electronics & Computers
A data-processor architecture that would incorporate elements of both conventional very-large-scale integrated (VLSI) circuitry and quantum- dot cellular automata (QCA) has been proposed to enable...
Briefs: Electronics & Computers
Electronic heat-transfer devices of a proposed type would exploit some of the quantum-wire-like, pseudo-superconducting properties of single-wall carbon nanotubes or, optionally, room- temperature-...
Briefs: Electronics & Computers
Signal-conditioning amplifier recorders (SCAmpRs) have been proposed as a means of simplifying and upgrading the Kennedy Space Center (KSC) Ground Measurement System (GMS), which is a versatile...
Briefs: Electronics & Computers
SpaceWire Driver Software for Special DSPs
A computer program provides a high-level C-language interface to electronics circuitry that controls a SpaceWire interface in a system based on a space qualified version of the ADSP-21020 digital signal processor (DSP). SpaceWire is a spacecraft-oriented standard for packet-switching data-communication...
Briefs: Electronics & Computers
Proposed integrated-circuit modules called "nanoconverters" would derive DC power from impinging electromagnetic beams having frequencies in the terahertz range. Nanoconverters are composed of microscopic...
Briefs: Electronics & Computers
Rotary electrical couplings based on induction (transformer action) rather than conduction between rotating and stationary circuitry have been invented. These couplings provide an alternative to slip...
Briefs: Electronics & Computers
Metal oxide semiconductor (MOS) circuits for measuring spatially varying intensities of beams of low-energy charged particles have been developed. These circuits are intended especially...
Briefs: Electronics & Computers
Software for Remote Monitoring of Space-Station Payloads
Telescience Resource Kit (TReK) is a suite of application programs that enables geographically dispersed users to monitor scientific payloads aboard the International Space Station (ISS). TReK provides local ground support services that can simultaneously receive, process, record, playback,...
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Webcasts
Upcoming Webinars: AR/AI
The Real Impact of AR and AI in the Industrial Equipment Industry
Upcoming Webinars: Motion Control
Next-Generation Linear and Rotary Stages: When Ultra Precision...
Upcoming Webinars: Energy
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Podcasts: Medical
How Wearables Are Enhancing Smart Drug Delivery
Podcasts: Power
SAE Automotive Podcast: Solid-State Batteries
Podcasts: Power
