"soundhaspriority" wrote in message
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"ScottW" wrote in message
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ups.com...
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"ScottW" wrote in message
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http://www.i4u.com/article6402.html
In addition to ipod functionality..
this is one of the first generation new TV phones. LGE has
one in test
as well.
The DMB function is Qualcomms mediaflo.
http://www.qualcomm.com/mediaflo/index.shtml
They bought spectrum (UHF channel 55 IIRC) and will
begin offering digital broadcast in most major metro centers
by year end.
Verizon has already signed up to offer the service to their
subscribers.
ScottW
Thanks, Scott, for the heads up. Although I am professionally
involved in
media creation, I am personally more of a data/text person.I
carry a
subnotebook everywhere I go, and two EDGE data terminals: one
card, one
phone. When available I may add a Sprint EVDO rev A card, or
simply upgrade
to T-Mobile's coming HSPDA. I actually prefer to view static
websites. In
terms of media leverage, however, video is where it's at.
There will be universal phones available in a year... but I'm
not sure
if they've worked out the kinks with the network operators...
for example can you pick the fastest data service available
without
incurring some ridiculous roaming fees?
Have to wait and see on that one.
Why can't you use your phone as modem?
I can and I do. But I used to have a Nokia 6820, which is only
an EDGE Class 6 device.
Do they allow the
data card and phone to share time/data service on one account
or is it
considered
two numbers?
I swap the SIM card. The tradeoffs are as follows:
1. The Sierrra 775 card is a Class 12 EDGE device - 4 slots
down/up. It has a large power budget, with a Blackfin software
radio and 2watts/800mHz, 1watt/1900 mHz.
2. The HTC Wizard is a Class 10 EDGE device - 4slots down/1
up.It doesn't have the power budget. It seems to have additional
latency over that inherent in GPRS/EDGE. It used to be that
Google would seldom load. It appears that sites that were
Ackamai hosted would load, but others with large back ends would
not. I haven't checked since I installed the new AKU 2.0 ROM
image, but this is why I bought the card.
Currently, T-Mobile charge nothing for domestic roaming. There
is good signal in much of the southwest. There is also bad
signal in much of the southwest. The Northeast is very good,
frequently providing downlink at the theoretical maximum EDGE
speed of 236 kbs. People who use Sprint EVDO for onsite service
in suburban Philly report mediocre coverage, with dropback most
of the time to 1xRTT. Now my old standbys, the T-mobile hotspots
are giving me trouble. The installations did not anticipate
local competition. In many seats, one cannot log into their
vaunted 802.1x network, sometimes not even their open network.
WiFi was simply never designed to have lots of access points
operating
in an area. No coordinated channel assignment..its just a free
for all
RF wise.
So it's very much a crapshoot. The coverage maps are not
truthful. The purpose of another connection card would be to
increase the chances of broadband.
HTC has a new phone, the TYTN,
http://www.europe.htc.com/products/htctytn.html, which actually
has universal triband HSPDA coverage on top of UMTS, EDGE, and
GPRS. However, reports are that the phone simply cannot host a
modem connection at full speed, which is faster than Bluetooth
2.0. I don't have any data on phones that can act as a broadband
modem without a speed penalty, but I know of several that
cannot. New HTC models seem to have buggy ROM code. It took them
six months to straighten out the Wizard. It would seem that
because PC cards are simpler devices with larger power budgets,
they should be assumed more reliable, in the absence of
substantial user experience with 3G phones for laptop data.
Thats generally true...but because the PC card market is
substantially
smaller than phones...they use the same basic chipsets as phones.
Not as a rule. Perhaps some do, but as a counterexample, the
Sierra 775 EDGE cardbus card uses a Blackfin software radio:
http://www.analog.com/processors/bla...ics/index.html
The card draws a tremendous amount of power and runs HOT. It could
never be powered off a cellphone battery.
Its a fully software configurable digital radio configurable for
X-fm and the like as well.
No wonder it runs hot... It is still an example that the digital
wireless modem
isn't large enough for dedicated hardware development.
The HTC Wizard uses the dual core TI OMAP 850:
http://focus.ti.com/general/docs/wtb...contentId=4679
While the Blackfin radio is completely firmware, the OMAP 850 was
designed for EDGE, period. It's built into the DSP core. Firmware,
but specialized. The WM5 core is a typical ARM derivative.
ARM cores do not have DMA.
Not true. ARM11 used as an application processor in the
chipset I referenced does.
http://www.arm.com/products/CPUs/fam...M11Family.html
They are strictly PIO. This is the cause of the data bottleneck.
The ARM core simply can't ship the data out the usb port, or
bluetooth, as fast as it comes in. This is another reason to go
with a pc card.
I got my info from a WM5 app programmer. FWIW, he says DMA is not
available to him for his product, which is an SP/DIF CF card. But
the picture is more complicated than I thought.
[snip]
The days of ARM cores are numbered.
I don't see that at all. Intel has gone after the mobile market
before and failed...they simply can't catch up and with AMD nipping
away the desktop market they need to protect that.
Intel is stretched, but they knew what they were doing when they
sold Xscale to Marvell. The ARM core,which is based on the ancient
6502, was intended for one purpose: production of a very small,
cheap processor using obsolete foundary equipment that otherwise
would have to be disposed of. Look at the geometries: the ARM is
being made on 130um, while Intel and AMD are at 65um.
That is simply ridiculous... the ARM designs are licensed to various
integrators
and then built on whatever process they choose.
Some Qualcomm chips are being fab'd on 90 um and at least sampled on
65
(not sure about production status).
TSMC offers various ARM cores in their cell library and has sampled
65u parts..again I'm not sure if its in production yet.
The drystone specs on the web page provide a performance reference
on a process. Not a mandate for a process.
Intels problems with mobile apps has never been processor
capability, its power management and ARM is way ahead in
that arena. And you can't solve it providing a bigger or more capable
battery. It all turns to heat in the end and you can't have
a PDA that will fry the palm of your hand after a few minutes.
ScottW