IEEE - CAS Bangalore Chapter, India     CAS Chapter - Region 10
Institute of Electrical and Electronics Engineers - Circuits and Systems Society
Goals: To conduct seminars, workshops, and other events pertaining to all aspects of electronic circuits and systems

Event Reports - 2007
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System Level Design of Low Power Wireless Sensor Networks for Biomedical Applications
September 17, 2007
TI India Auditorium, Bangalore
Report by C.P.Ravikumar

IEEE Circuits and Systems Society Bangalore Chapter, and ParagaTI (TI India Technical University) arranged a DLP seminar entitled System Level Design of Low Power Wireless Sensor Networks for Biomedical Applications on September 17, 2007. The distinguished lecturer was Prof. Dinesh Bhatia of University of Texas, Dallas. The venue was the auditorium of Texas Instruments India, Bangalore. The seminar was attended by about 40 participants from Bangalore.
Prof. Bhatia emphasized that wireless sensor networks (WSN) will become prevalent in many applications that relate to ubiquitous computing. Integrating a large scale system based on WSN is a challenging task that requires efficient management of hardware as well as software resources. Building a robust and reliable system is a must requirement for using WSN in biomedical applications like tele-health and health monitoring. Dr.Bhatia presented system level issues that must be accounted for building a large scale low power network. He also illustrated using the construction of a large health monitoring system, and covered recent industry trends and highlighted how various companies are positioning themselves to exploit this technology.

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Low Frequency and High Frequency Noise in Bipolar transistors
August 23, 2007
TI India Auditorium, Bangalore
Report by C.P.Ravikumar

IEEE Circuits and Systems Society Bangalore Chapter, VLSI Society of India and ParagaTI (TI India Technical University) jointly arranged a one-day seminar entitled Low Frequency and High Frequency Noise in Bipolar transistors on August 23, 2007. The speaker was Dr. Jayasimha Prasad, Maxim Integrated Products (USA) and the venue was the auditorium of Texas Instruments, Bangalore, India. The seminar was attended by about 30 participants. Dr Prasad emphasized that LF noise is a very important concern in analog and mixed signal circuits. Low frequency noise also affects the high frequency performance of oscillators, VCOs and mixers by generating phase noise. Mr.Jayasimha Prasad in his talk reviewed popcorn noise, flicker noise, shot noise, thermal noise and their behavior. He also described the methods of measuring the noise in devices.
HF noise affects the performance of communication systems and sets the lower limit on the minimum detectable signal. Noise figure NF is a better parameter to characterize noise at higher frequencies. At any given frequency and Ic, there are four noise parameters that are needed to characterize the high frequency noise: minimum noise figure, noise resistance, optimum source conductance and susceptance. In addition, the associated gain of the device is also very important parameter. He highlighted how NF varies with Ic and frequency, introduced the concept of noise temperature to help us in making noise figure measurement. Set up for noise figure measurements were detailed out, and typical measurement results from transistors were shown. Methods of minimizing noise figure were also discussed. The talk subsequently concluded on how to perform phase noise and jitter calculations from 1/f noise for practical system applications.

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Electronic System-level Design Workshop ESLD2007
Jan 11-12, 2007
Wipro Technologies, Bangalore
Report by C.P.Ravikumar

The second workshop on Electronic System-level Design (ESLD 2007) was held during Jan 11-12, 2007 in Bangalore. The workshop was organized by VSI in cooperation with IEEE CAS Bangalore chapter. Wipro and ARM were the corporate sponsors of the event. The workshop was inaugurated by Prof. Nikil Dutt (UCI), Dr Rishiyur Nikhil (Bluespec), Zafar Ahmed (ARM), Prasad Bhatt (Wipro), and Brian Bailey (Poseidon Design Systems).

Prof. Nikil Dutt delivered the keynote address on Day 1, on the topic "In Search of the Elusive Golden Reference Model for ESLD" which set the trend for the proceedings of the workshop by raising fundamental questions on the right level of abstraction. The other speakers who spoke on Day 1 included:

  • Dr. Rishiyur Nikhil, CTO, Bluespec Inc.
  • Zafar Ahmed K, ARM Embedded Technologies Pvt. Ltd
  • Dr. Sachin Ghanekar, Tensilica
  • Dr. Kanishka Lahiri, NEC-Labs
  • Dr. Sandeep Shukla, Virginia Tech Univ.
  • Srinivasan Venkataraman, Synopsys
  • Amit Sharma, Synopsys
  • Charles Hauck, VP Engineering, Bluespec Inc
  • Brian Bailey, Poseidon Design Systems, delivered the keynote talk on Day 2 on the topic of "Yin and Yang of Verification." His talk clarified the difference between verification and validation, and positive and negative verification. He stressed the need for positive verification, which provides value by asking "Does the system under verification do anything useful?"

    An Indian chapter of the System C User Group was inaugurated. The other featured speakers for Day 2 were:

  • T.S. Rajesh Kumar, Texas Instruments Bangalore
  • Aravinda Thimmapuram, NXP Semiconductors
  • Desingh Balasubramanian, Poseidon
  • Mr. Karthick Gururaj, NXP Semiconductors
  • Two panel discussions were held on Day 2. The first one was on "ESLD in Education" and was moderated by Nagendra Gulur of TI India. The panelists were S. Karthik (Analog Devices) K. Krishna Moorthy (National Semiconductors) and Prof. S.K. Nandy, Indian Institute of Science. The second panel was on ": ESLD in India: Opportunities and challenges" and was moderated by Shiv Tasker of Bluespec. The panelists were Ramesh Subbarao (Texas Instruments), Mudit Mathur (Wipro Technologies), Vishal Suresh (NXP Semiconductor), Sarang Shekle (Poseidon Systems), and Prof. S.K. Nandy, Indian Institute of Science.

    ARM Embedded Technologies held a demonstration of their tools at an exhibit booth.

    Please visit for the slides presented during the two panel discussions: ESL in Education, and ESLD: Opportunities in India.

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