Wisconsin Alumni Research Foundation

Technology

Virtual Touch Screens: New Input for Smaller Devices

As mobile devices become smaller, touch screen inputs have remain largely unchanged. But the use of the display as an input surface can become a problem as the user’s finger obstructs increasingly l...
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Xinyu Zhang, Chi Zhang, Joshua Tabor, Jialiang Zhang | P160021US01

Technology

More Efficient Laminate Analysis

Lamination includes various techniques of manufacturing materials in multiple layers or ‘plies.’ Laminates are commonly used in the automotive, aerospace, medical and consumer industries. A simple...
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Vadim Shapiro, Goldy Kumar | P140408US01

Technology

Intelligent Memory Fault Patching Cuts Costs

The development of smaller, denser transistors has revolutionized computer performance but given rise to power dissipation problems, wherein a chip or part of a chip consumes more power than can effec...
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Mikko Lipasti, Nam Sung Kim, David Palframan | P140425US01

Technology

Improved Mobile User Localization

The rapid proliferation of wireless devices has caused a surge in data rates. Higher frequencies including millimeter wave frequencies (30-300 GHz) are being explored to address the spectrum crunch. ...
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Akbar Sayeed | P140393US01

Technology

Detecting Seismic S Waves with Unprecedented Accuracy

Seismic events produce two types of seismic waves, referred to as P waves and S waves. P waves are relatively easy to detect (or “pick”) with software. S waves travel more slowly and arrive in the...
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Clifford Thurber, Christopher Rawles | P140387US01

Technology

New MIMO Transceiver Cuts Costs, Complexity

In a multiple-input, multiple-output (MIMO) system, multiple antennas are used at both the transmitter and receiver to improve communication performance. MIMO systems are key to high capacity communic...
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Akbar Sayeed, John Brady | P150112US01

Technology

Wideband Transceiver for Antenna Array

Wideband high-dimensional antenna arrays are expected to play a key role in future wireless systems. Due to narrow bandwidths, phased array/beamforming methods are the natural choice when it comes to ...
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Akbar Sayeed, John Brady | P150113US01

Technology

Controlling Parallelism in Real 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, Gagan Gupta | P110121US01

Technology

Energy-Efficient Multiplier Circuitry for GPUs

Processing images made up of pixel data is an important task of many modern processors, especially in portable devices like cells phones and tablets. Sophisticated image processing often requires floa...
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Nam Sung Kim, Syed Gilani, Michael Schulte | P140267US01

Technology

Increasing Memory Bandwidth

Modern computer processors can process data faster than the data can be exchanged with external memory. For this reason there is considerable interest in boosting the ‘bandwidth’ of the memory bus...
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Nam Sung Kim, Hao Wang | P140155US01

Technology

Memory Controller for Heterogeneous Processors

Many modern computers employ multiple processor types, for example, one or more conventional CPUs operating in tandem with specialized GPUs, the latter tailored to high-speed streaming processing. T...
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Nam Sung Kim, Hao Wang | P140398US01

Technology

Dynamic Bandwidth Scaling Improves Energy Efficiency

3-D main memory is an emerging technology in which stacks of DRAM are situated underneath the processor. This configuration helps decrease main memory latency while allowing designers to increase main...
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Nam Sung Kim, Daniel Chang, Hoyoung Kim | P130143US02

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