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- 11-23-2006, 11:34 AM #46Guest
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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- 11-23-2006, 11:45 AM #47John NavasGuest
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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