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Hi All,

Friends who know of my interest in audiophilia (ok... look it up if you think it's something perverted) have asked me on several occasions "Why aren't there turntables that use lasers instead of needles" to play vinyl LPs? That seems like a logic question... almost a no-brainer for engineers who have seen lasers take over audio playback of digital compact discs. Why not user lasers for analog audio reproduction? I had read of laser turntables in the past, but for some reason they never got well established. I never really understood why, other than cost.

The March 2009 issue of IEEE Spectrum magazine provides the answers, in an article titled "Give Your Records a Break". Yes, price is a big factor, with laser LP players from ELP Corp priced in the range of $15,000! But there are also fundamental technical reasons holding back lasers from replacing diamond needles, and they may seem to be somewhat counter-intuitive.

It turns out that lasers are just TOO good at tracking the undulating grooves of a vinyl LP. Phono cartridges have limited bandwidth from mechanical as well as electrical limitations, whereas lasers can pickup every little spec of dust and scratch in the vinyl surface. Many of these defects are too small to move a magnetic stylus. To get acceptable sound quality from a laser turntable, an expensive record cleaner is mandatory as a minimum, and an additional signal processor to filter out noise is needed to really cleanup the signal. That's a lot of trouble to go to and, ironically... it puts digital signal processing back in the chain of sound reproduction!

As I've written before (see Digital vs. Analog: never-ending myths of CDs vs. LPs)
, I have no problem with those audiophiles who prefer the sound of LPs. I do have a problem with those who are compelled to claim that defects in digital CDs prevent them from sounding as good as LPs. (See Audio Mythology). All too often pseudoscience, and technically flawed arguments, are used by the vinyl snobs. So I think it is fascinating to learn that the laser (actually 5 lasers in the ELP system), while eliminating the limitations of the standard magnetic pickup, ends up producing sound that is unacceptably revealing of vinyl flaws.

-Mike
Here are my notes from tonight's panel discussion at DVCon titled EDA: Dead or Alive?

Moderator: Peggy Aycinena - Editor, EDA Confidential

Panelists (selected by Peggy):

  • Ajoy Bose Chairman President & CEO, Atrenta, Inc.
  • Diana Feng Raggett CEO, President & Co-Founder of Javelin Design Automation, Inc.
  • Gary Meyers VP & GM of Synplicity Business Group, Synopsys, Inc.
  • Lauro Rizzatti GM, EVE-USA
  • Ravi Subramanian CEO, Berkeley Design Automation, Inc.
  • Scott Sandler President, SpringSoft, Inc.
  • Tom Sandoval CEO, Calypto Design Systems
1. Panelist's 90-second response to the question - is EDA Dead or Alive?
  • Ajoy: EDA is a driver for the semiconductor industry, so not dead unless semiconductor is dead.
  • Diana: not business as usual, but not dead. Customers focus on "what is needed to ship" product.
  • Gary: There are more electronics in our future, hence EDA can not be dead.
  • Lauro: EDA is not in good health, with 500+ EDA companies, no exit strategies, and no room for growth.
  • Ravi: Current situation is like a 100-year storm, and we can expect dramatic change. "There is no life without death", and can expect the same in EDA.
  • Scott: EDA dies when electronics dies. Money will be made, but question is by whom?
  • Tom: Different perspective now, where in the past he was in semiconductor and would beat up vendors for lowest price.
My take: Ravi's and Lauro's answers were the most accurate and honest assessments of the current state of EDA. The inefficiencies, redundancies, and poor management in EDA must be shaken out - as in all industries. Recessions and depressions are Darwinian events, exposing the weaknesses that should have been obvious before.

2. Peggy's 2nd question: Should EDA become "DA", design-automation of a complete system and surrounding components?
  • Ajoy: Time constant of change in other parts of the design chain are slow, whereas the chip component changes very rapidly.
  • Diana: is holistic integration an advantage?
  • Gary: Question is what market gives the best ROI? Systems markets are too vertical, specialized.
  • Lauro: Rejects the idea. Most important is that the two worlds of software and hardware should work together. (Echoing Aart's keynote address)
  • Ravi: No need for expansion beyond tighter hardware-software integration.
  • Scott: Increasing trend toward specialization means that EDA should stick to electronic design.
  • Tom: Calypto products address system level link to RTL.
My take: I agree with the value of EDA being in specialization to the problems of chip design. Heck, EDA has difficulty as it is in addressing user's needs for complete, inter-operable flows at the chip level! How many people in EDA have ever had full top-to-bottom responsibility for taping out a chip, never mind building a whole system? Name one EDA company that is structured in a holistic fashion to address that problem!

3. Peggy's 3rd question: What new products do each of your companies have coming in the next 18 months?
  • Tom: Ability to automate system level to RTL, with more focus on power issues across an SoC.
  • Scott: There are no cash cows in EDA. (Not sure if there was a roadmap mentioned, sorry if I missed something in my notes here).
  • Ravi: Focus is on AMS, "analog is the new digital" meaning that analog is what fails now, and costs time to market. Markets BDA addresses are wireless, computer, and consumer. Requirements are accuracy, performance, capacity, and physical effects (i.e. parasitics).
  • Lauro: debugging enhancements, scalable emulation.
  • Gary: Synopsys addressed their "technology gap" with introduction of Custom Designer. Forthcoming are more integrated solutions, look for a brand new top down design system to be announced at SNUG.
  • Diana: "Path finding". Talked about recent announcement with Qualcomm and IMEC on solutions for stacking memory on logic. Results in lower power and higher bandwidth.
  • Ajoy: Must find ways to better align with the roadmap of the semiconductor companies. "Where is semiconductor going"?
4. Peggy's 4th question: How are your customers doing, and is your agenda the same as it was 5 years ago?
  • Diana: Customers are being more pragmatic, tight budgets, everyone is looking for disruptive opportunities.
  • Gary: Environment changed rapidly. Customers are focused on risk mitigation, closer partnering, reducing the number of flows.
  • Lauro: difference is technical - increased complexity.
  • Ravi: Survival is the utmost concern now. Customers have limited visibility, cost is the #1 risk. There has been a dramatic change in the level of collaboration, for example - RFCMOS. Nine of ten papers in the RF/Tuner session at ISSCC were customers of BDA. BDA recently announced AFS nano, allowing customers to shift more dollars to tough problems.
  • Scott: One thing never changes in EDA; customers buy value.
  • Tom: Customers want to know how can EDA help today?
Some final comments from panelists:
  • Diana: Discussed recent visit to Taiwan. Customers in Hsinchu industrial park are down to 1-day work week, fabless design houses in China closing, or merging. Companies looking to survive through collaboration, opening up to universities and research institutes.
  • Scott: feels that Peggy's opening statement that EDA tools are underpriced is "ridiculous". The problem is commodity prices of products that are not differentiated.
  • My take... YES!
  • There were some other discussions that I did not bother taking notes on, such as Peggy's question about how much the EDA vendors support interns and universities.
  • My take - overall:
  • It was interesting, after all the discussion on non-differentiated products, and "rebirth" after death, that only Lauro raised his hand when Peggy asked if there are too many EDA companies.
  • No one on the panel admitted to having laid off anyone since November 2008. (Interesting, as I was laid off as part of an end-of-year cutback at Synopsys, and we know there were other EDA companies that had layoffs as well.)
  • I had not gone to any of the past "Troublemakers" panels at DVCon, but Peggy acknowledged replacing John Cooley (who had moderated those discussions in the past). Perhaps that is why Peggy was so confrontational to the panelists?
  • Personally, I think it is different when a customer (or customer proxy) takes that approach. Anybody who has been in EDA is used to that. Customers pay a lot of money for EDA tools, and if there are bugs, or tools are delivered late, or they are over-hyped.. they have a valid gripe.
  • But what does a journalist have to be so pissed off about?
-Mike



The annual Design and Verification Conference - DVCon is being held this week, at the Doubletree Hotel in San Jose, CA. In case you had any trouble finding the agenda of the technical programs on the DVCon website, I have copied the links and schedule here:
Wednesday at DVCon:
February 25, 2009
7:00 AM
Breakfast: Prototyping: Where Hardware & Software First Meet(Pine/Cedar Ballroom)

8:15- 8:45
Opening Session (Oak Ballroom)

9:00-10:30
Session 1 (Fir Ballroom): Verification Methodology and Testbenches - I
Session 2 (Oak Ballroom) :Formal Verification Applications

11:00-12:30
Session 3 (Fir Ballroom) :Increasing Functional Coverage
Session 4(Oak Ballroom):Emulation/Acceleration

Lunch Presentation: Case Studies of OVM in Multi-language Verification Environment (Pine/Cedar Ballroom)

2:00-2:45
Keynote (Oak/Fir Ballroom):"The Techonomics of Verification"
Aart de Geus - CEO and Chairman of the Board - Synopsys, Inc.

3:15-5:00
Panel: EDA: Dead or Alive? (Oak/Fir Ballroom)

5:00-6:30pm
Cocktail Reception

Thursday at DVCon:

8:30-10:00
Session 5 (Donner Ballroom): Verification Methodology and Testbenches - II
Session 6 (Cascade Ballroom): Low Power Verification
Session 7 (Siskiyou Ballroom): Verification Data Management

10:30-12:00

Session 8 (Donner Ballroom): Verification Methodology and Testbenches -III
Session 9 (Cascade Ballroom): Mixed-signal Design and Verification
Session 10 (Siskiyou Ballroom): Case Studies - I

Lunch Presentation (Pine/Cedar Ballroom): Risky Business: How Do I Manage Risk in My Next Design Project?

1:30-3:00
Session 11 (Donner Ballroom): Low Power Management
Session 12 (Cascade Ballroom): Programming with SystemVerilog
Session 13 (Siskiyou Ballroom): Case Studies - II

3:30-5:00 (Donner/Siskiyou Ballroom)
Panel: Mixing Formal Analysis with Simulation: Why, When, Where, and How?

5:30-6:00 (Donner/Siskiyou Ballroom): Closing Session 2009 Best Paper Award Presentation

I will be attending Wednesday afternoon, and am particularly looking forward to the panel discussion: "EDA: Dead or Alive?" to be moderated by Peggy Aycinena.

Personally, I'd say EDA is not dead, but if you look at the industry overall it is pretty comatose. That could probably be said of the economy in general right now, but much of the problem in EDA is self-inflicted. As a student of economics and business management, I am actually looking forward to seeing the inefficiencies shaken out. A major re-structuring of the EDA industry is called for, so that it can better serve the needs of its customers. There is no room any more for all the redundancy, waste and sloppy management that has gone on for too many years. It should be interesting!

On Thursday, I will be attending the session on Mixed-signal Design and Verification:

Session Chair: Thomas J. Sheffler - Consultant

9.1 Validating WiMAX OFDMA using SystemVerilog and VMM
Albert Chiang, Wei-Hua Han - Synopsys, Inc.
Bhanu Kapoor - Mimasic

9.2 A SystemVerilog Approach for Analog/Mixed-signal Verification
Shyam Rapaka, Tapan Halder - Synopsys, Inc.
Vikas Chandra - ARM

9.3 Get to ASICs Faster - a Novel Mixed-signal Design Methodology
Greg Tumbush - Tumbush Enterprises, LLC
Gareth Weale, Dustin Griesdorf, William Gonnason, Marc Matthey, Andreas Drollinger, Alaa El-Agha - ON Semiconductor
Holger Meiners - Consultant

I hope to see many of you there.

-Mike


(February 22, 2009)
Hi All,

I recently attended the International Solid States Circuits Conference, which was held in San Francisco on February 9-11. (The main conference, there are other events before and after).

My report "Highlights of the 2009 International Solid State Circuits Conference (ISSCC)" is now available for (free) download from the website of digdia, where I am doing some work as a Strategic Analyst. Here is the abstract from the report:


The theme of this year’s ISSCC was “Adaptive Circuits and Systems”. Though semiconductor manufacturing technology may be close to reaching the physical limits of Moore’s Law, ISSCC-2009 showed that we are clearly not there yet. Progress continues to be made in shrinking transistors, with Intel disclosing the first use of 32nm technology, while also providing a vision for achieving the next step down to 22nm.
Presenters at ISSCC-2009 demonstrated how advances in technology and circuit innovation can be combined to make more adaptable devices, using digital control and programmability to provide benefits for many applications. This report highlights the most significant innovations from ISSCC in the areas of consumer electronics and digital media.
I invite all of you to go to digdia.com to get the free download. A more comprehensive report, with detailed analysis of the trends and implications for the semiconductor and EDA industries, will be available for purchase at a later date. Please contact me if you are interested, or if you have a particular topic that you would like to see me cover.

-Mike


View Mike Demler's profile on LinkedIn
There is a very good article on developing your personal brand in today's Wall Street Journal; It's a New Me (As Seen on Google), by Julia Angwin.

One of the vital components of your personal brand is how you show up in search engine results, i.e. when someone "Googles" you. Maintenance is required, which means that you need to learn a little bit about Search Engine Optimization (SEO).

When you enter a search term in Google, the search engine looks for pages that contain a match and ranks them, partially based on how many links exist to other Web sites. As Julia Angwin discovered:


I needed to focus on linking my online presences to each other -- that is, my Twitter page would link to my LinkedIn page, which would link to my biography on my book-publisher's site. These interlinkages are key to understanding Google's page-ranking system.


As a blogger, I create this linkage by attaching my RSS feed to Facebook and LinkedIn and by placing links in comments that I leave on other blog sites. For more on how to do that, see my slides in the previous post Developing Your Personal Brand Through Blogging.

If you haven't yet taken the dive into blogging, the article also provides suggestions for sites where you can establish an online presence by writing short articles that demonstrate your expertise:


For most non-journalists who do not maintain their own blog or Web site, it's a bit harder to create such a steady stream of new content on topics they want to associate with themselves. But it's not impossible. Ms. Drysdale recommends submitting articles to Web sites such as Squidoo.com, eHow.com or Google Knol on topics on that show off your expertise. "It's a huge branding opportunity," she says.


Great advice!
I also have been very pleasantly surprised to discover another way to get online "buzz". I use the slideshare.net site to upload presentations so that I can embed them in this blog or on LinkedIn. You don't have to have a blog to do that. It's sort of like a Powerpoint version of Flickr; i.e. a sharing site for presentations. My slides on Developing your Personal Brand through Blogging have received more than 500 views in the two days since I posted them, and the presentation also has been "Featured" on the site's main page as well as in the Careers section of slideshare.net. Putting a link back to my blog in the presentation has also significantly increased traffic here, creating one of those exponential viral marketing points of inflection in the page hits on my Feedburner stats.
-Mike
This is a presentation that I delivered to the Job Search Networking Group at Right Management - Silicon Valley. It includes my "Top 10 List" of tips on building a subscriber base and attracting
readers to your blog.

Developing Your Personal Brand Through Blogging
View more presentations from demler1.
Copy of the presentation I delivered at the ZIP Networking Group, at Right Management - Silicon Valley, on Feb. 2 - 2009

SlideShare Link

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