Renfield Kuroda wrote:
> Cellphones in Japan have had DSP for years, for audio processing. That's
> what HyperTalk is for DoCoMo, among other things. I'd be surprised if any
> handsets in Japan DIDN'T have a DSP.
<snip>
Right. Digital mobile phones require DSPs not only for audio processing
but for encoding and decoding of the radio signalling protocol (PDC or
whatever). The radio functions are so time-critical that I think it is
not practical to use the DSP for other purposes while the phone is
signed-on to a network. Since the phone must sign-on in order to access
i-mode, the DSP cannot be used for JPEG decoding.
Ben.
[ Did you check the archives? http://www.appelsiini.net/keitai-l/ ]
Received on Mon Mar 19 23:00:04 2001