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DTSTART;TZID=America/Toronto:20180810T100000
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DTSTAMP:20260424T235108
CREATED:20210430T014030Z
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SUMMARY:IEEE SSCS/CAS Distinguished Lecture Series – Dr. Gabor Temes
DESCRIPTION:Friday\, August 10th 2018\, the IEEE Toronto SSCS/CAS invites you to the IEEE SSCS/CAS Distinguished Lecture Series on: “A 13b ENOB Noise-Shaping SAR ADC with a Two-Capacitor DAC” by Lukang Shi and Gabor C. Temes\, and “Noise Filtering and Linearization of Single-Ended Circuits” by Gabor C. Temes et al.\, School of EECS\, Oregon State University. \nDate: Friday August 10th\, 2018 \nOrganizers: IEEE Toronto SSCS/CAS \nLocation: Bahen Centre Room BA1210 \nLecture 1 (10:10am – 11:00am): A 13b ENOB Noise-Shaping SAR ADC with a Two-Capacitor DAC \nSpeakers: Lukang Shi and Gabor C. Temes\nSchool of EECS\, Oregon State University \nAbstract: An active noise-shaping successive-approximation-register (SAR) analog-to-digital converter is described. Instead of binary-weighted capacitors\, it uses two equal-valued capacitors as the embedded digital-to-analog converter (DAC). Thus\, the capacitance spread in the DAC is much smaller than that of the conventional binary-weighted capacitor array\, and the mismatch error can be greatly reduced. The circuit provides first-order noise shaping\, which can improve the ADC’s linearity even for a small oversampling ratio. Also\, the proposed architecture uses a monotonic approximation procedure\, which requires fewer conversion steps than for a conventional SAR ADCs. The ADC was fabricated in 0.18 um CMOS technology. For a 2 kHz signal bandwidth\, it achieved a 78.8 dB SNDR. It consumes 74.2 mW power from a 1.5 V power supply. The performance can be drastically improved by introducing noise mitigation schemes and higher-order noise shaping. These topics will also be discussed. \nLecture 2 (11:10am – 12:00pm): Noise Filtering and Linearization of Single-Ended Circuits \nSpeakers: Gabor C. Temes et al.\nSchool of EECS\, Oregon State University \nAbstract: The performance of analog integrated circuits is often limited by the noise generated in its components. Several circuit techniques exist for suppressing the effects of the low-frequency noise. In this paper\, existing techniques are described for noise mitigation. Also\, a novel approach is proposed\, which can suppress low-frequency noise. In addition\, the new process will also reduce even-order distortion\, another major limitation of analog circuits. Finally\, it may allow the use of single-ended circuits in applications where usually differential structures are needed. \nBiography: Gabor C. Temes received the Ph.D. degree in electrical engineering from the University of Ottawa\, ON\, Canada\, in 1961\, and an honorary doctorate from the Technical University of Budapest\, Budapest\, Hungary\, in 1991. He held academic positions at the Technical University of Budapest\, Stanford University and the University of California at Los Angeles. He worked in industry at Northern Electric R&D Laboratories and at Ampex Corp. He is now a Professor in the School of Electrical Engineering and Computer Science at Oregon State University. \nDr. Temes received the IEEE Leon K. Kirchmayer Graduate Teaching Award in 1998\, and the IEEE Millennium Medal in 2000. He was the 2006 recipient of the IEEE Gustav Robert Kirchhoff Award\, and the 2009 IEEE CAS Mac Valkenburg Award. He received the 2017 Semiconductor Industry Association-SRC University Researcher Award. He is a member of the National Academy of Engineering.
URL:https://www.ieeetoronto.ca/event/ieee-sscs-cas-distinguished-lecture-series-dr-gabor-temes/
LOCATION:Bahen Centre for Information Technology\, St George St\, Toronto\, ON M5S 2E4\, Canada
CATEGORIES:Solid-State Circuits
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DTSTART;TZID=America/Toronto:20180809T110000
DTEND;TZID=America/Toronto:20180809T120000
DTSTAMP:20260424T235108
CREATED:20210430T014029Z
LAST-MODIFIED:20210430T224230Z
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SUMMARY:Convergence between Broadcast and Mobile Broadband
DESCRIPTION:Thursday\, August 9th at 11:00 a.m.\, the IEEE Toronto Section\, Consumer Electronics Chapter invites you to the IEEE CESoc Distinguished Lecture on: “Convergence between Broadcast and Mobile Broadband” by Dr. Ulrich Reimers\, IEEE CESoc Renowned Distinguished Speaker\, and Professor Institut fuer Nachrichtentechnik (IfN)\, Technische Universitaet Braunschweig\, Germany. \nDay & Time: Thursday\, August 9\, 2018\n11:00 a.m. ‐ 12:00 p.m. \nSpeaker: Dr. Ulrich Reimers\nIEEE CESoc Renowned Distinguished Speaker\nProfessor Institut fuer Nachrichtentechnik (IfN)\, Technische Universitaet Braunschweig\, Germany \nLocation: 40 St George Street\nToronto\, Ontario\nCanada M5S 2E4\nBuilding: Bahen Centre for Information Technology\nRoom Number: BA7180 \nContact: Mahdieh Taghizadeh \nOrganizer: IEEE Toronto Section\, Consumer Electronics Chapter \nRVSP: https://events.vtools.ieee.org/m/174204 \nAbstract: The mobile industry has been testing the feasibility of evolved Multimedia Broadcast Multicast Service (eMBMS)\, an LTE embedded broadcast approach to support a growing mobile video/TV consumption and the delivery of other highly popular data services. But\, eMBMS has so far only been used in small scale scenarios with local coverage. When it comes to large scale service areas with regional or even national coverage\, the cellular nature of eMBMS has not proven to be attractive for cost efficient LTE broadcast content distribution. Adapting LTE broadcast to traditional High Tower High Power (HTHP) broadcasting towers and introducing this as a third service layer\, i.e. as an extension of LTE unicast and eMBMS can resolve this issue as it reduces network load\, energy consumption and network costs for such popular services. Additionally\, it creates the possibility of cooperation between the cellular and broadcasting networks enabling a cooperative spectrum usage. \nThe term “Tower Overlay over LTE-Advanced+ (TOoL+)” describes the transmission of an extension of LTE-Advanced (LTE-A) offering broadcast services\, especially live video\, from a traditional High Tower High Power (HTHP) broadcast infrastructure\, rather than in a cellular LTE-A network. TOoL+ was invented and developed by IfN. Since LTE-A is optimized for the Low Tower Low Power (LTLP) environment of cellular networks\, the use of a HTHP environment requires some modifications of the LTE-A standard\, e.g. the definition of a dedicated broadcast carrier and of additional OFDM parameters with longer cyclic prefixes. These modifications are represented by the term LTE-A+. In one of the modes\, TOoL+ even supports a cooperative spectrum use by DVB-T2 (or ATSC 3.0 in the future) and LTE-A+ if this is attractive to market players. IfN developed a Software Defined Radio (SDR) based TOoL+ implementation to demonstrate the technological feasibility of this approach. An extended version of this demo has been used during two field trials conducted in Paris\, France and in the Aosta Valley\, Italy to evaluate the proposed modifications and the cooperative spectrum use in a real environment. The analysis shows that LTE-A+ is a suitable technology for HTHP broadcast to mobile devices as its coverage area is similar to that of DVB-T2. \nIn line with the ideas underlying TOoL+\, 3GPP has recently specified FeMBMS (Further evolved Multimedia Broadcast Multicast Service) in Release 14. FeMBMS supports a long cyclic prefix and thus makes larger network cells feasible. At IfN we have already implemented FeMBMS and by the time of the lectures in Canada will have carried out a field trial in at least one European country. \nBiography: Prof. Ulrich H. Reimers studied communication engineering at Technische Universitaet Braunschweig\, Germany. Following research at the university’s Institut fuer Nachrichtentechnik (IfN – Institute for Communications Technology) he joined BTS Broadcast Television Systems in Darmstadt. Between 1989 and 1993 he was Technical Director of Norddeutscher Rundfunk (NDR) in Hamburg – one of the major public broadcasters in Germany. Since 1993 he has been a Professor at Technische Universitaet Braunschweig and Managing Director of the Institut fuer Nachrichtentechnik (Institute for Communications Technology). Prof. Reimers was chairman of the Technical Module within the DVB Project from 1993 to 2012. Since 2012 he is Vice President Strategic Development and Technology Transfer of Technische Universitaet Braunschweig. He is the author of more than 120 publications\, among others of various text books on DVB. Prof. Reimers received a significant number of international and national awards. He is an IEEE Life Fellow and the recipient of the IEEE Masaru Ibuka Consumer Electronics Award. Recently Prof. Reimers and the research teams at IfN invented innovative solutions for the co-existence of broadcast and wireless broadband such as “Dynamic Broadcast”\, “Tower Overlay over LTE-A+ (TOoL+)”\, or “Redundancy on Demand”. \nProf. Reimers is a Renowned Distinguished Speaker of the IEEE Consumer Electronics Society (CESoc).
URL:https://www.ieeetoronto.ca/event/convergence-between-broadcast-and-mobile-broadband/
LOCATION:Bahen Centre for Information Technology\, St George St\, Toronto\, ON M5S 2E4\, Canada
CATEGORIES:Power Electronics
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