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  1. #46

    Re: MediaNet service with data card?

    John Navas <[email protected]> wrote:
    > Same speeds with the same type device in the same signal area, although
    > Data Acceleration (compression) can speed up certain things (like
    > graphics).


    I would think graphics would be something that acceleration wouldn't help,
    since it is already compressed. Or do they strip out some pixels?

    I thought the dialup modem "accelerators" worked by compressing text on
    web pages. I presumed ispda was the same thing, compressing data that
    isn't already compressed.

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    ---
    Clarence A Dold - Hidden Valley Lake, CA, USA GPS: 38.8,-122.5



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  2. #47
    John Navas
    Guest

    Re: MediaNet service with data card?

    On Thu, 23 Nov 2006 17:34:36 +0000 (UTC), [email protected] wrote in
    <[email protected]>:

    >John Navas <[email protected]> wrote:
    >> Same speeds with the same type device in the same signal area, although
    >> Data Acceleration (compression) can speed up certain things (like
    >> graphics).

    >
    >I would think graphics would be something that acceleration wouldn't help,
    >since it is already compressed. Or do they strip out some pixels?


    Graphics are reduced in size with a great deal of lossy compression.
    The result is generally usable, but crude.

    >I thought the dialup modem "accelerators" worked by compressing text on
    >web pages. I presumed ispda was the same thing, compressing data that
    >isn't already compressed.


    There's no good way to do that without a mobile client app, which mobile
    devices don't have. So Data Acceleration relies mostly on graphics
    compression, along with more sophisticated caching and streaming.

    --
    Best regards, FAQ FOR CINGULAR WIRELESS:
    John Navas <http://en.wikibooks.org/wiki/Cingular_Wireless_FAQ>



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