SystemX

Tactical Grade Gyroscope Performance in a Consumer Grade Process [SystemX Seminar EE310]

Topic: 
Tactical Grade Gyroscope Performance in a Consumer Grade Process
Abstract / Description: 

GPS has transformed navigation but unfortunately does not work in indoor or dense urban environments. The alternative, inertial navigation, is either too inaccurate or too large, power hungry, and costly in all but niche applications.

Gyroscopes are responsible for direction in inertial sensors. Since even small angular offsets can rapidly add up to large location errors, significantly improved gyroscope accuracy is the key to precise indoor navigation.

I will describe a prototype gyroscope with tactical grade performance. Unlike state-of-the-art solutions, the device does not rely on exotic fabrication technology or trimming, and both its size and power dissipation are comparable to existing mobile solutions.

How is this possible? Sensors, in general, compare their input to a reference. A thermometer compares its input to a reference temperature and reports the ratio. Gyroscope sensors have a huge advantage: their input is rate, degrees per second, also known as frequency. Frequency is the physical quantity that we can synthesize and measure with highest accuracy. While ppm-level precision is out-of-the-question for most properties, it is easily achieved for frequency.

Why then are gyroscopes not just as accurate as frequency sources? Oddly, present MEMS gyroscopes immediately turn frequency into force, then displacement, capacitance, voltage. Not only are these quantities difficult to measure with high accuracy, the scaling factors of all these transformations are subject to a myriad of fabrication and environmental variations. Not surprising that present gyroscopes suffer from a few errors.

The path to good gyroscopes is to measure frequency directly, without performance compromising detours. In this presentation, I will show you how.


 

The EE310 seminar series is intended to offer students a window onto the research directions of the SystemX industrial affiliates and associated faculty.

Offers a series of talks covering emerging topics in contemporary hardware/software systems design. Attention will be paid to the key building blocks of sensors, processing elements and wired/wireless communications, as well as their foundations in semiconductor technology, SoC construction, and physical assembly as informed by the SystemX Focus Areas. The series will draw upon distinguished engineering speakers from both industry and academia who are involved at all levels of the technology stack and the applications that are only now becoming possible.

  • April 13: Tactical Grade Gyro in a Consumer Grade Process Bernhard Boser (UC Berkeley)
  • April 20: Wi-Fi The R/Evolution Continues Sundar Sankaran (Ruckus)
  • April 27: Secrets of Successful Technology Start-ups Paul Franklin (Independent)
  • May 04: Dynamics of Exponentials in Circuits and Systems Ahmad Bahai (TI)
Date and Time: 
Thursday, April 13, 2017 - 4:30pm
Venue: 
AllenX Auditorium

Beneath the Surface – Engineering Innovation inside Microsoft’s Surface Book [SystemX Seminar EE310]

Topic: 
Beneath the Surface – Engineering Innovation inside Microsoft’s Surface Book
Abstract / Description: 

The EE310 seminar series is intended to offer students a window onto the research directions of the SystemX industrial affiliates and associated faculty.

Offers a series of talks covering emerging topics in contemporary hardware/software systems design. Attention will be paid to the key building blocks of sensors, processing elements and wired/wireless communications, as well as their foundations in semiconductor technology, SoC construction, and physical assembly as informed by the SystemX Focus Areas. The series will draw upon distinguished engineering speakers from both industry and academia who are involved at all levels of the technology stack and the applications that are only now becoming possible.

  • April 06: Beneath the Surface, Ed Giaimo (Microsoft)
  • April 13: Tactical Grade Gyro in a Consumer Grade Process Bernhard Boser (UC Berkeley)
  • April 20: Wi-Fi The R/Evolution Continues Sundar Sankaran (Ruckus)
  • April 27: Secrets of Successful Technology Start-ups Paul Franklin (Independent)
  • May 04: Dynamics of Exponentials in Circuits and Systems Ahmad Bahai (TI)
Date and Time: 
Thursday, April 6, 2017 - 4:30pm
Venue: 
AllenX Auditorium

New Directions in Management Science & Engineering: A Brief History of the Virtual Lab

Topic: 
New Directions in Management Science & Engineering: A Brief History of the Virtual Lab
Abstract / Description: 

Lab experiments have long played an important role in behavioral science, in part because they allow for carefully designed tests of theory, and in part because randomized assignment facilitates identification of causal effects. At the same time, lab experiments have traditionally suffered from numerous constraints (e.g. short duration, small-scale, unrepresentative subjects, simplistic design, etc.) that limit their external validity. In this talk I describe how the web in general—and crowdsourcing sites like Amazon's Mechanical Turk in particular—allow researchers to create "virtual labs" in which they can conduct behavioral experiments of a scale, duration, and realism that far exceed what is possible in physical labs. To illustrate, I describe some recent experiments that showcase the advantages of virtual labs, as well as some of the limitations. I then discuss how this relatively new experimental capability may unfold in the future, along with some implications for social and behavioral science.

Date and Time: 
Thursday, March 16, 2017 - 12:15pm
Venue: 
Packard 101

Brain-machine interfaces as a platform technology for neurological disorders [SystemX Seminar]

Topic: 
Brain-machine interfaces as a platform technology for neurological disorders
Abstract / Description: 

To date, the scope of brain-machine interfaces (BMIs) has largely been to restore lost function to people with paralysis stemming from conditions such as neurodegenerative disease and spinal cord injury. These systems interface with the brain using neurosurgically implanted electrodes, measure the voltage of individual and groups of neurons, and translate these measurements via a decoding algorithm to control an end effector such as a computer cursor. I will discuss work performed in preclinical rhesus models that led to the highest performing communication BMI demonstrated to date, as well as recent results of an ongoing clinical trial where these preclinical algorithmic innovations have been successfully translated to a human participant, again yielding the highest communication rates of any known clinical BMI.

The example of prosthetics is just one important application leveraging intracortical BMIs as a platform for accurately assessing and acting on the neural state. However, these measurements could play a crucial role in the diagnosis and management of a wide range of brain-related diseases and disorders. Just as EEG recordings help localize seizures both temporally and spatially, and MRI imaging provides morphological and gross functional evaluations of the brain, BMI systems may reveal previously unrecognized disease-specific adulterations in the neural state. Not only could this aid in forming better prognoses, but may also lead to interventions to prevent or alleviate undesirable symptoms and improve rehabilitation. In this manner, the utility of BMIs could extend beyond communication or motor prosthetics to become an indispensable clinical tool in the treatment of brain disorders. I will discuss the emerging potential and key initial steps of this new class of medical system.

Date and Time: 
Thursday, March 16, 2017 - 4:30pm
Venue: 
AllenX Auditorium

The Connected Car Revolution: Making Driving Safer and More Efficient [SystemX Seminar]

Topic: 
The Connected Car Revolution: Making Driving Safer and More Efficient
Abstract / Description: 

The automobile is one of the last frontiers of the wireless revolution. We live connected lives: at school, at home, at work. But, as drivers we're isolated, limited to what we can do hands-free, and not at all connected to drivers around us. More importantly, our cars are mobile islands, increasingly equipped with sensors that help the driver "see," but not able to communicate with their surroundings. That is changing. After more than a decade of intensive research, vehicles are poised to enter a new connected reality in which they constantly talk to each other, to pedestrians and bicyclists, and to smart devices at intersections and along the road. In this talk we will explore Dedicated Short Range Communication (DSRC) technology for vehicle-to/from-everything (V2X) connectivity. We will examine the wireless technology itself, including challenges that the research community has had to overcome. We will consider the range of V2X applications for safety, driving efficiency, and automated driving. In the safety sphere alone, the US Department of Transportation estimates that DSRC can help prevent or mitigate 80% of crashes involving non-impaired drivers, which is why they are working to require DSRC as a safety feature in new cars. We will discuss the status of DSRC deployment in the US and around the world. Finally, we will examine some possible barriers to DSRC deployment being advanced by non-DSRC stakeholders. The connected car revolution will bring predictable safety and efficiency benefits. Perhaps just as importantly it is likely to be an innovation platform for benefits we have not yet imagined.

Date and Time: 
Thursday, March 2, 2017 - 4:30pm
Venue: 
AllenX Auditorium

CMOS Systems-on-Chip for NASA Millimeter-Wave & THz Space Instruments [SystemX]

Topic: 
CMOS Systems-on-Chip for NASA Millimeter-Wave & THz Space Instruments
Abstract / Description: 

In this talk we will first introduce the exciting Earth science, planetary science and astrophysics investigations that are performed by JPL and NASA at millimeter-wave and terahertz frequencies, describing several recent results by instruments operating in this wavelength regime. Then we will then discuss the important role CMOS system-on-chip (SoC) technology now plays in these instruments for LO generation, and signal processing, and the fundamental challenges (noise, extreme temperatures and radiation effects) that CMOS based instruments face in delivering the high level of fidelity required for NASA's science investigations. The talk will discuss several examples of CMOS SoC-based instruments from NASA programs including a 600 GHz side-band separated spectrometer being developed for investigations of Europa, Titan, Enceladus, and a 100 GHz in-situ spectrometer system for investigation of volatiles ejected from comet and asteroid surfaces. Additionally we will discuss several NASA radiometer instruments based on CMOS technology for observing Earth's atmosphere to diagnose precipitation and extreme weather events.

Date and Time: 
Thursday, March 9, 2017 - 4:30pm
Venue: 
AllenX Auditorium

GPU Computing: From Computer Games to Deep Learning and Self-Driving Cars [SystemX]

Topic: 
GPU Computing: From Computer Games to Deep Learning and Self-Driving Cars
Abstract / Description: 

This talk will discuss the evolution of GPU computing over the last ten years from computer gaming to high performance and scientific computing to most recently self-driving cars and speech recognition in the data center. Along the way, there have been many challenges and innovations in hardware architecture, memory technology, power efficiency, resiliency and programming models. Most recently, deep learning have emerged as a dominant workload that is driving many of the new applications. This new workload shares many aspects of prior applications while at the same time introducing new and unique computational demands that are driving next-generation design.

Date and Time: 
Thursday, February 16, 2017 - 4:30pm
Venue: 
AllenX Auditorium

Low-Energy Embedded Systems and Innovative Differentiated Technologies for Future IoT Applications [SystemX Seminar]

Topic: 
Low-Energy Embedded Systems and Innovative Differentiated Technologies for Future IoT Applications
Abstract / Description: 

Pervasive IoT systems are making our lives easier with an enhanced user experience in a variety of widely deployed applications. Microsystems and features of IoT embedded systems and their key technical requirements will be described. Energy efficiency of the future intelligent IoT systems require balancing of computing and communication locally at the IoT node calling upon both Moore's Law and Shannon's Law in concert. Innovative technologies to create power-differentiated and cost-effective solutions for future IoT applications will be explained; including specialty SONOS eNVM technology, low-power radios and small form-factor system-in-package & interconnect technologies. We compare them with alternative competitive technologies and explore how participants' future innovations can be integrated in IoT systems. eNVM technology is critical in enabling energy autonomous IoT systems that rely on intermittent source of energy for program, data, security and advanced networking protocols. Finally, we will demonstrate a low-energy IoT system for precision agriculture that uses solar energy harvesting and conclude by describing a vision of future IoT systems.

Date and Time: 
Thursday, February 23, 2017 - 4:30pm
Venue: 
AllenX Auditorium

Analog Techniques for Ultra-Low-Power Transceiver [SystemX Seminar]

Topic: 
Analog Techniques for Ultra-Low-Power Transceiver
Abstract / Description: 

The talk is divided in two parts, the former dedicated to RF front-end for ultra-low-power wireless transceivers, the latter to the base-band section and the challenging problem of channel selection filtering.

How to transform a simple LC-VCO into complete analog RF front-ends LC harmonic oscillators are widely used in wireless communications to generate reference signals inside the radio. It will be shown how such structures can be transformed into complete RF front-ends with just some minor modifications from the original topology. Initially, the LC oscillator will be transformed into an RX front-end exploiting its intrinsic property to work as a mixer. After that a Class-C LC oscillator will be merged with a power amplifier to realize a TX front-end suitable for FSK and GFSK transmitter. Measurements results on two prototypes tailored to BLE application will be shown.

Adaptive filters and passive switched capacitors In the second part of the talk, two emerging techniques used for the design of channel selection filters in wireless receivers will be discussed. Initially, a novel an adaptive filter architecture will be presented. The filter succeeds to shape the filtering profile as function of the operative scenario without the need of any control loop. After that, passive switched capacitors filters will be analyzed. A new intuitive continuous-time model will be introduced. The model easily allows to design high-order topologies even with complex conjugates poles without the need of any active device. Measurements results on two different prototypes will be provided.

Date and Time: 
Thursday, February 9, 2017 - 4:30pm
Venue: 
AllenX Auditorium

DNA Nanotechnology-based Engineering at the Biointerfaces [SystemX Seminar]

Topic: 
DNA Nanotechnology-based Engineering at the Biointerfaces
Abstract / Description: 

Proteins and nucleic acids are dynamically organized in cells to realize their physiological functions with spatial and temporal orderliness. This type of elegant supermolecular assembly has inspired researchers to create molecular/biomolecular structures with dynamic organization outside of the cells. In particular, DNA nanotechnology has proven to possess extraordinary flexibility and convenience for "bottom-up" construction of exquisite nanostructures with high controllability and precision, which holds great promise in a wide range of applications, e.g., nanofabrication and molecular electronics, in-vivo and in-vitro sensing and drug delivery.

In this talk, I will present several examples of using tetrahedral DNA nanostructures (TDNs) for engineering the interfaces of cytoplasmic membranes and biosensors. TDNs are three-dimensional (3D) DNA architecture with high mechanical rigidity and structural stability, which are suitable for organization of higher-ordered nanocomplexes and nanodevices. In one example, we employed single-particle tracking to visualize the internalization of TDNs, and dissect the cell entry pathways of these virus-like nanoparticles. In the second example, we dynamically organized biomolecular receptors at the biosensing interface using TDNs, and performed in-vitro diagnostics for various diseases.

Date and Time: 
Thursday, February 2, 2017 - 4:30pm
Venue: 
AllenX Auditorium

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