On 10=D4=C210=C8=D5, =CF=C2=CE=E711=CA=B138=B7=D6, cs_post...@[EMAIL PROTECTED]
> On Oct 10, 4:11 am, Allen <ai.hao...@[EMAIL PROTECTED]
> wrote:
>
> > The Canon and Nikon all argued that their new digital cameras used new
> > CPU. Indeedly the cpu is very powerful, espically the Canon 5DII. It
> > is encoding the HD H.264 video realtime.
>
> > Do who know the real designer for these chips?
>
> > It is impossible that they come from Canon, Nikon or Sony themselves.
>
> There are a few common camera chips out there which are used by many
> product manufacturers. Zoran's COACH series which was a MIPS core
> system-on-a-chip that used to be popular. Many newer cameras with
> video are using a chip called Ambarella which is an ARM core. I think
> Panasonic has their own.
>
> Keep in mind that in this day and age, having your own chip does not
> mean designing it from scratch. Just as COACH and Ambarella use
> existing CPU architectures, you can license the processor core,
> license mpeg-whatever hardware acceleration blocks, license USB
> interfaces, etc - and then pay a fab to make it for you. Still its a
> big and risky project though, which is why there's a market for
> digital camera chips that often come with a reference firmware/
> development kit.
Thank you very much.
I think the MPEG-accelator should cooperate with ARM in the H.264 High
Define application.
Many communities who focus on H.264 algorithm have to modify new
direction.
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