"ScottW" wrote in message
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"soundhaspriority" wrote in message
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"ScottW" wrote in message
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soundhaspriority wrote:
"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. The ARM did well, but it is a dead-end concept. While a sophisticated
core, be it from Intel or AMD can eventually be shrunk to fit a PDA, the
simplicity of the ARM has nowhere to go as a competitive feature.. So ARM
will be replaced. Who will do it? A player with the technology in 2010 to
make a 20 nm core. There are only three possibilities: Intel, AMD, or,
(maybe) Via.