(keitai-l) Re: i-mode

From: Ben Hutchings <ben.hutchings_at_roundpoint.com>
Date: 01/10/01
Message-ID: <BJEJKNLGLPJGJPMDDOPHAEKNCAAA.ben.hutchings@roundpoint.com>
Andylicht@aol.com wrote:

> How images can be fit into a 128 byte packet on i-mode?

Packets are the basic units of data transmission for i-mode (and
other connectionless networks); a single page or image may be
transmitted using many packets.  So the answer is that they don't
have to fit into 128 bytes.

> What formats are compatible with i-mode, ie jpeg, etc?

The i-mode documentation states quite clearly that only GIFs are
supported.  Some newer i-mode browsers support animated GIFs, but
most support only still GIFs.

> How many packets would it take to download a 2 minute streaming 
> video image?

i-mode does not currently support streaming - it only supports HTML
pages and GIF images of a length that the server must specify in
advance (through the standard Content-Length response header).  The
phone must be able to receive each page and its images in a small
(typically 5K) buffer.

All this information, and a lot more, can be found in the official
documentation at http://www.nttdocomo.com/i/tag/index.html or the
FAQ at http://www.mobilemediajapan.com/imodefaq/

Ben.


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Received on Wed Jan 10 21:50:29 2001