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Texas Instruments Inc. Message Board

  • ScatterShooting ScatterShooting Aug 6, 1999 11:20 PM Flag

    splits and trivia

    I see that the board has returned to its usual
    speculation on when the next split might be (and we haven't
    even gotten to the current split yet). Add the trips
    down memory lane recalling the ASC and the candy
    factory, and it makes one long for a return of
    voice_of_reason and his thought-provoking theories of the
    defensibility of the DSP market.

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    • I feel better now. Digital Signal Processing is
      still what I remember it to be, its just been made
      faster with special hardware support and become more
      usable to everyone with the developement of
      sophisticated graphical user interface applications.


    • My understanding is that DSP is a microprocessor
      that is hardware oriented toward "multiply-and-add"
      instructions, as opposed to the "add" orientation of the x86
      class product. So higher level functions like FFTs can
      be significantly faster in a DSP

      Bandwidth still does mean frequency limits, but it also
      means information capacity. My grasp of this from a
      radar background perspective is that frequency limits
      control information capacity. The added component to the
      definition is what I would call signal-to-noise ratio [SNR],
      or competition to your desired signal from other
      unwanted signals. There's plenty of information in normal
      level speech, but not much information when a competing
      loud sound obscures it.

      Hope this helps, and
      of course I'm open to better, more accurate


    • I am not a techie, but my understanding of DSPs
      is that they are they used to be except the fact
      that the big development has been in the development
      of programming tools to write the applicattions
      running on DSPs, and the libraries of functions
      available. This is what is differentiating TXN from LU and
      MOT and DGI. Moreover, this is where TXN is putting
      most of their efforts. So, to build the fastest DSP is
      important, but not as important as making the software tools
      to make this DSP useable to write and run your
      application asap. That's why I am very comfortable with the
      long-term prpospects of TI.

      I hope it


    • "bandwidth". I use to know what that term meant
      but it seems now that everybody uses the term. Heck,
      at work someone asked me if I had the "bandwidth" to
      work on another problem. Boy I got irate. And of
      course it caught on and now everyone asks everyone if
      they have the bandwidth. I'm still not sure that
      bandwidth is appropriate for talking about network data
      rates(bits/second). To me bandwidth is a function of the frequency
      content of a signal.

      I know this is off topic but
      I am bored...


    • I thought I knew what Digital Signal Processing
      was, once, when I use to analyze signal using things
      like FFT's etc. But I get the impression that DSP has
      taken on a different meaning and TXN is the inventor of
      that new meaning. I would just like to know what TXN
      means when they use the term DSP.


    • That's a good question and exactly why a lot of
      people in expanding areas can't more than 28.8K or 33K
      best out of a 56K modem. Of course you don't find that
      out until you try it at home or read the fine print
      on your ISP's site if they even tell you. It's just
      a matter of time but that's not totally technology,
      it's the stupid phone company's willingness to push
      the market.

    • that mathmatical operations like FFT's, convolutions, correlations are done in the hardware and not the software?


    • I recently spoke to SBC about DSL for our company
      internet hook up and was told that we were to far from the
      switching station ----how will that type problem be solved
      for homes and business connections.---We are having
      to get a T1 line in the company.

    • DSL stands for Digital Suscriber Line, a digital
      transmission method that utilizes your current phone lines and
      supports both high speed digital data and customary phone
      service simultaneously. Potentially, any home or business
      that has phone service is a candidate for DSL

      For the home or small business user, ADSL (Asymetric
      DSL) is offered which provides higher speed in the
      download direction. Since it is bidirectional it has an
      advantage over cable which traditionally is one way using a
      phone connection for the return path. So you still need
      to tie up a phone line in addition to subscribing
      cable. Once a cable company upgrades to bidirectional
      service that advantage is lost. Then, conceivably the
      cable company could also provide phone service as

      It's too early to say (even for Cisco) which will
      dominate in the future. More than likely both will
      co-exist for many years.

      TI manufactures chips for
      ADSL and also participates in the cable market through
      its recently acquired Libit Signal Processing Ltd.

    • The Founder of CISCO is on record this weekend
      saying that digital signal lines (? processors) will win
      out over cable in fast internet service.

      stated thats why cisco has not bought any cable

      I hope the real techies on this board will explain
      the basis of this type of reasoning as it has
      enormous implications for TI.

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