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281 Results for 'Information Technology'
PAGE 8 OF 12
Technology
Statistical Imaging Reconstruction Is Faster, Cuts Noise
In recent years, statistical imaging reconstruction has been introduced in clinics by different computed tomography (CT) manufacturers as a means to reduce radiation dose levels. Essentially, the meth...
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Guang-Hong Chen, Jie Tang | P130341US01
Technology
More Accurate Branch Predictor Circuit
A branch predictor is a digital circuit that attempts to direct traffic in an instruction stream. Branching is usually implemented with a conditional jump instruction, and branches may be ‘taken’ ...
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Mikko Lipasti, Dibakar Gope | P140330US01
Technology
Enhanced Traveling Wave Tube
A traveling wave tube (TWT) is a vacuum electronic device that acts as a microwave amplifier capable of providing high gain and high output power. TWTs are used in many wireless devices like radar sys...
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Nader Behdad, Arash Rashidi Tarhani | P140188US01
Technology
Predicting Logic Gate Failure
Logic gates are the building blocks of integrated circuits. They use multiple transistors to receive and interpret voltage inputs, then provide outputs.
Future generations of integrated circuit micr...
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Karthikeyan Sankaralingam, Raghuraman Balasubramanian | P130365US01
Technology
High Performance Amplifiers for Better Wireless Communication
Cell phones, radar and other wireless communication systems use high power solid-state amplifiers to boost and transmit signals. These amplifiers function in the radiofrequency (RF) and microwave rang...
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Zhenqiang Ma, Ningyue Jiang | P07047US
Technology
More Efficient Processing with Self-Invalidating IOMMU Mapping
In a computer, an input-output memory management unit (IOMMU) may be positioned between the physical memory and I/O devices such as disk drives. The IOMMU provides the I/O devices with virtual address...
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Michael Swift, Mark Hill, Arkaprava Basu | P140029US01
Technology
Maximizing Multicore Processor Performance
Computer processors typically include a number of central processing unit (CPU) cores for executing instructions. Each core is capable of reading and executing a sequence of instruction code, or ‘th...
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Nam Sung Kim | P130137US01
Technology
Optimizing Parallelism During Run-Time
Executing different portions of a program in parallel on different processors is known as parallelism. While this can boost how fast a program is executed, increased parallelism is not always benefici...
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Gurindar Sohi, Srinath Sridharan | P130131US01
Technology
Dynamic Predictor Improves Machine Control
Articulated mechanisms, such as walking robots or robotic arms, can be understood as a set of rigid links connected to each other by joints. The joints are put into motion using motors, sensors that i...
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Paul Milenkovic | P130307US01
Technology
Statistical Noise Map for Reducing X-Ray Exposure
Iterative image reconstruction techniques can be used to produce high quality tomographic images from noise-contaminated data. It is known that a statistical weight is critical for great image quality...
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Guang-Hong Chen, Jie Tang | P130056US01
Technology
Low-Profile, Ultrawide Band Antenna
Monopole antennas are a type of radio antenna consisting of a straight, rod-shaped conductor often mounted perpendicularly over a conductive surface (a ‘ground plane’) such as the earth. T...
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Nader Behdad, Seyed Mohamad Amin Momeni Hasan Abadi | P130215US01
Technology
Bedside Diagnosis of Swallowing Disorders
Approximately 15 million Americans suffer from a swallowing disorder (dysphagia). People with acid reflux, a neurological disorder or cancer of the head and neck are particularly at risk. The leading ...
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Matthew Hoffman, Jack Jiang, Timothy McCulloch, Zhixian Geng | P130237US01
Technology
More Efficient High-Speed Data Packet Classification
In contrast to random access memory (RAM), content addressable memories (CAMs) allow data to be located simply by knowing the desired data value. CAM memory receives the desired value and then returns...
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Suman Banerjee, Yadi Ma | P130240US01
Technology
Precise Restarts for Handling Interrupts in Parallel Processing
Computer ‘interrupts’ are signals received by a processor that cause it to switch from a present task or thread to a different one. Interrupts can be generated by hardware or software, or ...
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Gurindar Sohi, Gagan Gupta | P130018US01
Technology
Mobile Devices Conserve Energy by Adjusting Accuracy
Achieving energy efficiency is important in mobile computing devices like smartphones and tablets because they rely on battery power but are constrained by size and weight. Moreover, these devices inc...
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Nam Sung Kim | P130132US01
Technology
Simultaneous Image Reconstruction and Artifact Reduction
With conventional image reconstruction, a single image is produced from a corresponding set of data. For example, an image can be reconstructed from a single CT sonogram or one MRI data set. Such dire...
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Guang-Hong Chen | P130064US01
Technology
Faster Scans with Improved Bit-Parallel Processing
A database system combines hardware and software to manage and selectively access the large amounts of data it holds. Such a structure may hold data elements organized in logical rows and columns (for...
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Jignesh Patel, Yinan Li | P130164US01
Technology
Placement Gaming Empowers Cloud Users to Assess Service
With public cloud computing, customers pay a flat hourly rate for a bundle of virtualized resources called ‘instances’ from a service provider. Providers may sell a variety of instance types that...
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Thomas Ristenpart, Michael Swift, Ari Juels, Benjamin Farley, Venkatanathan Varadarajan, Kevin Bowers | P130021US01
Technology
High-Definition Video with Low-Speed Cameras
High dynamic range (HDR) video delivers imagery in a wide range of light intensities, from sunlight to dark shadows. This provides a truer brightness that can significantly enhance viewers’ experien...
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Li Zhang, Travis Portz | P130162US01
Technology
Ultra-Efficient Continuous Monitoring of Sensors
Tracking emissions, sensing earthquakes and monitoring patient brain waves are just a few of the applications that rely on changing, real-world information. In typical systems, sensors pass on raw dat...
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Mikko Lipasti, Atif Hashmi, Andrew Nere, Giulio Tononi | P130049US01
Technology
SliceHash: High-Performance Indexing for Data-Intensive Systems
Many data-intensive networked systems rely on high-performance indexes that link pairs of ‘keys’ with storage addresses. These indexes help locate and process large volumes (i.e., terabytes) of da...
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Srinivasa Akella, Ashok Anand, Aaron Gember-Jacobson | P130069US01
Technology
Managing Virtual Memory to Reduce Latency
To execute a computer program, a processor can access memory to read or write data. The accessed data may be identified by a unique physical address. Modern systems are able to hide the physical addre...
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Mark Hill, Michael Swift, Arkaprava Basu | P130081US01
Technology
Linear Programming for Practical, Real-Time Error Correction and Decoding
To reliably transmit and store data, error detection/correction techniques are employed to guard against data corruption. Generally, such protection can be achieved by inserting redundant bits in the ...
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Stark Draper, Benjamin Recht, Siddharth Barman | P120149US01
Technology
Cache Memory System to Reduce Invalidation Message Traffic
Computer processors have cache memories that reduce delays spent waiting for data from the main memory. Data expected to be used by the processor in executing a program are loaded into these caches.
...
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Gurindar Sohi, Hongil Yoon | P130019US01
Technology
SuperTag Cache for Energy-Optimized Compression
Cache memories play a critical role in reducing a computer system’s energy. Generally, they are fast access memories that store data reflecting locations in a corresponding main memory. Typically, t...
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David Wood, Somayeh Sardashti | P130076US01