Keyword: Security systems

Briefs: Test & Measurement
A flexible, free-standing THz sensor array images blind ends of irregularly shaped objects.
Briefs: Wearables
The wearable prototype can stream, in real time, an identifying signature based on the electrical activity of a person's heart.
Articles: Sensors/Data Acquisition
Tech Briefs asks industry experts about cybersecurity, the cloud, wireless devices, and securing a remote workforce.
Articles: Wearables
Heartbeat-based biometrics, sonic-boom displays, and an artificial leaf.
Application Briefs: Photonics/Optics

Performance of image sensors for security cameras must be geared to low-light sensitivity, high signal to noise ratio, and high temperature performance. Security image sensors are typically...

Articles: RF & Microwave Electronics

This column presents technologies that have applications in commercial areas, possibly creating the products of tomorrow. To learn more about each technology, see the contact information provided for that...

Articles: Energy

This column presents technologies that have applications in commercial areas, possibly creating the products of tomorrow. To learn more about each technology, see the contact information provided for that...

Briefs: Sensors/Data Acquisition

A major challenge to assault prevention is that during an assault, victims often do not have an easily accessible way to call for help. Whether calling 911 or using an emergency alert...

Briefs: Imaging

The market for smart security access systems is expected to grow rapidly, reaching nearly $10 billion by 2022. Today's smart security access systems mainly rely on traditional techniques...

Briefs: Medical

Panoramic irradiators are commonly used to disinfect and sterilize products such as medical supplies, cosmetic raw materials, food, food containers, and medical supplies. The irradiators...

Briefs: Aerospace
New Optics See More with Less

NASA's Marshall Space Flight Center has developed a technology that combines a panoramic refracting optic (PRO) lens with a unique detection system to acquire a true 360-degree field of view. Although current imaging systems can acquire panoramic images, they must use up to five cameras to obtain the full field of...

Articles: Materials

This column presents technologies that have applications in commercial areas, possibly creating the products of tomorrow. To learn more about each technology, see the contact information provided for that...

Briefs: Mechanical & Fluid Systems

Uncontrolled and rapid movement of equipment and people through security gates has been a major problem for security personnel. In situations pertaining to facility security, it is desirable to delay the passage of...

Briefs: Electronics & Computers

NASA Langley Research Center has developed a wireless, connection-free, open-circuit technology that can be used for developing electrical devices such...

INSIDER: Electronics & Computers

Fujitsu has developed a new smartphone with iris recognition, and a Clarkson University professor says she expects the technology to be available in the United States in the near future....

Articles: Imaging

Let’s say you’re a prospective buyer touring an older home that you suspect has some weatherization issues. What if you could verify your hunch by literally seeing cold air seeping under doors...

Application Briefs: Imaging

Located in Texarkana, Texas, Liberty-Eylau Independent School District (LEISD) has been serving communities since 1886. Today, the district has more than 2,700 K-12 students across...

Application Briefs: Imaging

Averaging 1.6 million passengers per day, the Taipei Metro, also known as the Taipei Mass Rapid Transit (MRT) system, is one of the busiest transportation systems in Asia...

Briefs: Information Technology
Efficient Web Services Policy Combination

Large-scale Web security systems usually involve cooperation between domains with non-identical policies. The network management and Web communication software used by the different organizations presents a stumbling block. Many of the tools used by the various divisions do not have the ability to...

Briefs: Physical Sciences

A method gathers scene information from a low-cost camera system. Existing surveillance systems using sufficient cameras for continuous coverage of a large field necessarily generate...

Briefs: Software
Framework for ReSTful Web Services in OSGi

Ensemble ReST is a software system that eases the development, deployment, and maintenance of server-side application programs to perform functions that would otherwise be performed by client software. Ensemble ReST takes advantage of the proven disciplines of ReST (Representational State Transfer — a...

Articles: Photonics/Optics

Film cameras were traditionally manufactured by discrete assembly, which means each component was fabricated as an individual item, tested if necessary, and then assembled into the final working product. The...

Articles: Electronics & Computers

Software defined radio technology has been widely adopted for new military and aerospace platforms, government signal intelligence and homeland security systems, and now more extensively in...

Articles: Electronics & Computers

The evolution of technology and the never-ending thirst for higher bandwidth from industries and applications are pushing the limits of existing standards. The latest processors run faster and...

Application Briefs: Electronics & Computers

Increasingly dependent on continuous video monitoring and recording, even today's more sophisticated security surveillance systems are often plagued by reliability...

Briefs: Physical Sciences

A standalone, handheld, through-wall radar unit is under development to provide three-dimensional feedback on the location and movement of people inside buildings. Applications include...

Briefs: Electronics & Computers

Lightweight optoelectronic systems built around advanced image sensors and display panels have been proposed for making selected objects appear nearly transparent and thus effectively invisible. These systems are denoted...

Briefs: Electronics & Computers

The figure schematically illustrates an optoelectronic security system in which binary information on the identity of a person or object is encoded in Bragg gratings in an optical...

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,...