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Cellular Phone Forum / Providers / ATT Wireless / July 2008

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FruitFoners can't read....GIF at 11

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Larry - 11 Jul 2008 15:13 GMT
There were 56 waiting in line, some since 9PM last night, vying for the 60
FruitFones ATT had at the North Charleston main store when it opened at 8
this morning.  I counted them as I arrived to photograph them.

Most I interviewed were there to get a FruitFone with a GPS in it, about
70%.  This is why the header to this post is they can't read.  "Assisted
GPS" ISN'T a GPS installed inside the phone, from looking at the high
resolution hardware pictures posted to ifixit.com's website last night.  
GPS receivers have a receiver, processor chipset and antenna...missing on
3G FruitFone's PC board.

Some said thanks.  Others got mad that I had the audacity to question
"God's will", vis-a-vis Apple.  Others were shocked when I told them former
FruitFoners were trying to trade their FruitFones and $50 for a place in
line posted to the net last night.  A young black girl in her Air Force
uniform thought that was a great idea and had 5 old FruitFones in perfect
condition offered to her, even though she was at the back of the line.  She
got the one with the nicest leather case and its owner will give her the
rest of it after she gets off work this afternoon.  She then left him her
space in line, to the dismay of the ones behind her.  She got there at 0530
this morning and got her FruitFone at 0720 for $75, without activation.

Well, I gotta go to work.  It was interesting to talk to real FruitFoners
in line this morning.  I told the boys at Waffle House they shoulda had a
truck loaded with breakfast and coffee at the line this morning.  Some of
those folks looked awful hungry after a night in the parking lot.

Your reporter in Charleston, SC, for alt.cellular.attws....
4phun - 11 Jul 2008 17:38 GMT
Well Larry for a cell phone without a GPS it does just about as well
as a MIO, TomTom or Garmin in tracking your location in real time.

Why is that Larry? You said it doesn't have a GPS chip. Apple says it
does BTW.

If you are right Larry then Apple has pulled off a big advance of
providing accurate GPS locations without any need for a dedicated
chip, all others are now doomed. What is a little weird is I took the
thing into the toilet deep in the interior of my house and turned the
maps function on again, within a few seconds it accurately showed the
distance from my car out by the mailbox where I had dropped a pin and
my new position. How did that sucker figure it out when I had no view
of the sky except through an open door to a hallway and a distant view
of a window? I got the little blue glowing orb which is an indicator
of the GPS and its accuracy for any given second.

Now I noticed that it sometimes lags a few feet behind the google map
while driving at high speed but below 45 MPH it seems dead on and when
you slow for a turn it is always dead on.

I like turning on the hybrid view and zooming way in to see the
detailed close up satellite view as I drive. That is more fun then my
stand alone GPS units! Someone is going to wreck or get killed with
one of these phones in the next few days as this is to much fun tp pay
close attention to other traffic.

> There were 56 waiting in line, some since 9PM last night, vying for the 60
> FruitFones ATT had at the North Charleston main store when it opened at 8
[quoted text clipped - 24 lines]
>
> Your reporter in Charleston, SC, for alt.cellular.attws....
Todd Allcock - 11 Jul 2008 22:15 GMT
> Well Larry for a cell phone without a GPS it does just about as well
> as a MIO, TomTom or Garmin in tracking your location in real time.

Really?  I wasn't aware that MIO, Tom Tom or Garmin units "lag a few feet
behind the  map while driving at high speed... "
Larry - 12 Jul 2008 02:49 GMT
Todd Allcock <elecconnec@AmericaOnLine.com> wrote in news:g58ik6$adb$3
@aioe.org:

> Really?  I wasn't aware that MIO, Tom Tom or Garmin units "lag a few feet
> behind the  map while driving at high speed... "

Actually they all do  GPS only updates ONCE each second, putting the fix
you see at high speed a ways behind your actual position.  The delay is
caused by the intense calculating of phase differences against timing
differences between the up to 12-20 birds over your horizon the GPS chipset
is locked onto.  The position presented is the position you WERE at when
the calculation started....many milliseconds ago.

Jet fighters have inertial guidance that corrects this delay in software
when it compares the GPS signal position calculated with the inertial
guidance solution from the computer and terrain mapping mere mortals like
us are not privy to...(c;

The lag is proportional to speed, so when you stop at a light, after only
one second, your position is as accurate as your GPS is capable of
calculating, about 3 ft with WAAS compensation.

Notice how, as you're cruising along the interstate, the fix jumps at one
second intervals....That's GPS...  The $10,000 superyacht GPS performs
exactly the same way....(c;
Tim Smith - 12 Jul 2008 12:27 GMT
> Really?  I wasn't aware that MIO, Tom Tom or Garmin units "lag a few feet
> behind the  map while driving at high speed... "

Speaking of TomTom, it does something kind of annoying at times: if the
GPS puts you at a position that it thinks unlikely, it will display you
as being somewhere it thinks more sensible.

I took my TomTom on a cross country train trip, and if there was a road
parallel to tracks within about 50 yards of the tracks, it would often
put me in the middle of that road, rather than on the train tracks.  
When the road diverged sufficiently from the tracks, it would then jump
my position to the tracks.

There doesn't seem to be any way to tell it that you want it to show the
GPS position, even if there isn't a road on the map at that position.

Signature

--Tim Smith

Evan Platt - 12 Jul 2008 15:25 GMT
>Speaking of TomTom, it does something kind of annoying at times: if the
>GPS puts you at a position that it thinks unlikely, it will display you
[quoted text clipped - 8 lines]
>There doesn't seem to be any way to tell it that you want it to show the
>GPS position, even if there isn't a road on the map at that position.

Not sure on the TomTom, but look for an option that says like "Off
Road"?

Some of the Older GPS's I've had had this - this would basically be
like telling it that if you go off road, that's fine - don't try to
put the icon on the road no matter what.
Signature

To reply via e-mail, remove The Obvious from my e-mail address.

Larry - 13 Jul 2008 01:47 GMT
Tim Smith <reply_in_group@mouse-potato.com> wrote in news:reply_in_group-
17D04E.04271012072008@news.supernews.com:

> I took my TomTom on a cross country train trip, and if there was a road
> parallel to tracks within about 50 yards of the tracks, it would often
> put me in the middle of that road, rather than on the train tracks.  
> When the road diverged sufficiently from the tracks, it would then jump
> my position to the tracks.

That would be very annoying.  It's a sign they're trying to cover up for a
lack of accuracy.
Beer Drinking Dog - 13 Jul 2008 05:45 GMT
> Tim Smith <reply_in_group@mouse-potato.com> wrote in news:reply_in_group-
> 17D04E.04271012072008@news.supernews.com:
[quoted text clipped - 7 lines]
> That would be very annoying.  It's a sign they're trying to cover up for a
> lack of accuracy.

TomTom is a device specifically geared to the automotive navigation
market. It's not a sign that they're trying to cover *anything* up, it's
just a sign that the programmers made a stupid assumption that anyone
using the device would be in a car on a road.

Boy, Larry, you're one paranoid bastard.
Larry - 12 Jul 2008 01:46 GMT
4phun <vic.healey@gmail.com> wrote in news:4099de52-4da8-4155-80a1-
fee50ec7b527@k30g2000hse.googlegroups.com:

> Why is that Larry? You said it doesn't have a GPS chip. Apple says it
> does BTW.

I'm asking anyone to point out, on the high resolution picture of the 3G
FruitFone board, the GPS receiver and its associated GPS processor
chips.....

We cannot find them.  GPS uses specific chipsets, there are several
manufacturers.  GPS is NOT A PIECE OF MAC APP CODE.

List the GPS chipset parts on that board and I'll just stop....It's very
simple....

Here is a picture of the best one made:
http://upload.wikimedia.org/wikipedia/en/7/7e/M10214_20071003_3764.jpg
The planar panels on each end are the phased array antenna system.
This is a complete, 20-channel, WAAS-compensated GPS receiver and it's
the coolest one made.  It drains the battery something just AWFUL at 62
mw of power and it has a simply incredible -159 dbm receiver sensitivity
to pick up the very faint signals from the birds 16,800 miles away in
polar orbits...up to 20 at a time!

-159 dbm is a power level of .000000000000000125 milliwatts!  On the
sunny side of the planet, sun-created noise radiating off a parking lot
is about 1000 times this level in broadband noise at the GPS UHF
frequency band.  It is simply an amazing piece of engineering.

http://live.ifixit.com/images/QuqS4aNEDOoQrOod-large.jpg
Here's the antenna PC board the gold plated spring contact on the main
board touches for a sellphone antenna....on the bottom, the worst place
under your hand....idiots.

http://live.ifixit.com/images/m2VNZsbxyPGHpkSC-large.jpg
Hmm....I just found something new on the OTHER side of this board....a
coaxial connector with pads going to it on the BATTERY side.  Look at
this picture.  I may have to eat crow...not the first time.....(c;

In the upper part of this picture, you see a round female gold-plated
connector that is tapered so that it mates with "something".  Under it
there are PC traces coming out in parallel (these may be "stripline"
impedance matching sections if there is an internal ground plane inside
the board, in the middle.  Striplines are very old technology but the
best we ever had.

These two black lines come over to what LOOKS like a white parts number
sticker of some sort.  I tried to find that number and it traces to
nothing....not a GPS receiver Google ever heard about...or even an IC
number anywhere on the net.  There's a little row of tiny surface mount
parts above this white "sticker", which MAY be an IC under it...surface
mount.  The black lines from the round cone coax connector, which may be
a connector for your GPS receiver go under the big shield cover on the
left....where there may be more circuits not yet pictured on the net.

This could very well be the connection for a planar GPS antenna in the
new plastic back...which would make it have a bulge in it like the Nokia
N810 has.  The N810 uses the fantastic chipset at the top of this
message, same as my external BT GPS receiver and all other Nokia GPS
products...including their phones.

Now, using this picture:
http://live.ifixit.com/images/2a.jpg
notice, using the gold-plated antenna contact in the last picture, the
last picture is looking at the BACK of the board in this picture.  I
wonder why ifixit didn't complete the disassembly they started and
remove teh shield cover from the BACK of the main board so we could look
at what is mounted on the back?!  I assumed they knew what they were
doing, being hardware geeks, but, now I'm not sure they found but HALF
the new FruitFone's circuit chipsets!  There has got to be other chips
mounted on the OTHER side of the board from the 2a picture here.....

Until we can see that side of the board with the brown shield cover
removed, we can't really tell what's on that side....

I'll bite....I think I just found the GPS antenna input for a GPS
chipset UNDER that shield cover on the back of the FruitFone....added on
as an afterthought, probably.

I was running on the assumption the chips on ifixit were the ONLY chips
on the board....I doubt they know this isn't all of them......well,
yet...(c;
Oxford - 12 Jul 2008 02:33 GMT
> > Why is that Larry? You said it doesn't have a GPS chip. Apple says it
> > does BTW.
[quoted text clipped - 5 lines]
> We cannot find them.  GPS uses specific chipsets, there are several
> manufacturers.  GPS is NOT A PIECE OF MAC APP CODE.

that's probably because Apple designed many of the specific iphone
chips... they have a long history of building their own IC's, so for
something as simple as GPS, they would have simply engineered it in
themselves.

> List the GPS chipset parts on that board and I'll just stop....It's very
> simple....
>
> Here is a picture of the best one made:
> http://upload.wikimedia.org/wikipedia/en/7/7e/M10214_20071003_3764.jpg

oh, my god... look at the traces on that! something from the 1990's or
worse...

i'm simply laughing too hard respond to the rest...

good god, larry... you are waaaay out of the loop when it comes to
modern cell phone electronics.
Thurman - 12 Jul 2008 15:30 GMT
> 4phun <vic.healey@gmail.com> wrote in news:4099de52-4da8-4155-80a1-
> fee50ec7b527@k30g2000hse.googlegroups.com:
[quoted text clipped - 5 lines]
> FruitFone board, the GPS receiver and its associated GPS processor
> chips.....

You really show your lack of intelligence by asking someone to identify an
internal chipset by looking at the case. That's like asking someone to
identify the engine by a picture of a car. I supplied supercomputers to many
of the eight fab factories in the late '80s. Your mindset is trapped in the
1960s.

Your penchant for 'fruit' and 'waffle house' tells us more about you that
you can ever say.

"Those of you that think you know everything,
irritate those of us that do".
George Kerby - 12 Jul 2008 16:51 GMT
On 7/12/08 9:30 AM, in article De3ek.9$ND7.5@newsfe07.lga, "Thurman"
<thurman@bigplanet.com> wrote:

>> 4phun <vic.healey@gmail.com> wrote in news:4099de52-4da8-4155-80a1-
>> fee50ec7b527@k30g2000hse.googlegroups.com:
[quoted text clipped - 14 lines]
> Your penchant for 'fruit' and 'waffle house' tells us more about you that
> you can ever say.

"Second childhood", some would call.
Larry - 13 Jul 2008 01:44 GMT
> You really show your lack of intelligence by asking someone to
> identify an internal chipset by looking at the case. That's like
> asking someone to identify the engine by a picture of a car. I
> supplied supercomputers to many of the eight fab factories in the late
> '80s. Your mindset is trapped in the 1960s.

I had the chipset wrong.  The chip I identified incorporates the Marvell
400mw wifi transceiver and CSR Bluetooth transceiver, as noted on:

http://live.ifixit.com/images/6pp5MISgVfdarIV1-large.jpg

...after the picture was annotated by other people, like myself, who
lack intellegence because we want to identify every internal chipset by
looking at the BOARD, not the case.

Other people, showing their lack of intelligence by asking someone to
identify an internal chipset, have identified the unit's GPS on picture:

http://live.ifixit.com/images/XiuvbfUecK3GsDUm-large.jpg

as the Infineon PMB2525 "Hammerhead II" GPS-on-a-chip.

-------------------------------------------------------------

I'd like to set the record straight, with all the fanbois, on another
matter......

Look closely at:
http://live.ifixit.com/images/XiuvbfUecK3GsDUm-large.jpg
and the list of manufacturers identified by this picture.

I keep hearing fanbois telling us how wonderful this gadget is because
Apple made it.  I hope they'll have the decency to note that Apple did
NOT make the iPhone.  Apple integrated technologies from a host of OTHER
companies, just like every other computer gadget company on the planet,
into a single unit they put their name on.  NONE of the ICs identified,
so far, which is most all of them except a few support chips, was made
by Apple, Inc.  Iphone is made of off-the-shelf parts and is not
something unique made especially for you in some Apple laboratory like a
fine watch.

It's just another device....just like my devices....and hardly worth
camping out overnight to buy.  How silly it all is....

It's main processor is from Samsung, whos own new sellphones you fanbois
poopoo as old technology, when the latest iPhone's ARM processor is the
same one....only the software is different, making it do other things.
nospam - 13 Jul 2008 08:11 GMT
> I keep hearing fanbois telling us how wonderful this gadget is because
> Apple made it.  I hope they'll have the decency to note that Apple did
> NOT make the iPhone.  

no?  who did?  dell?  motorola?  nokia? c'mon, who made it?

> Apple integrated technologies from a host of OTHER
> companies, just like every other computer gadget company on the planet,
> into a single unit they put their name on.  

so apple is just like every other company, but somehow they're bad and
the others aren't?  why aren't you slamming dell?

> NONE of the ICs identified,
> so far, which is most all of them except a few support chips, was made
> by Apple, Inc.  

so even though there *are* apple designed parts, it's not made by
apple.  i see.
Mark Crispin - 13 Jul 2008 18:54 GMT
> Apple integrated technologies from a host of OTHER
> companies, just like every other computer gadget company on the planet,
> into a single unit they put their name on.

Not quite accurate.

Apple hired a company in India to do that work.  Apple hasn't done much
hardware engineering themselves in many long years (not many fanboys know
that the Newton was just a rebranded Sharp Wizard).

In the not too distant future, the Indians will come out with cheaper and
better products under their own name, much as the Japanese, Koreans,
Chinese, etc. have done before them.  Maybe they'll buy the Apple name to
use as a brand, the way LG owns the Zenith name.

-- Mark --

http://panda.com/mrc
Democracy is two wolves and a sheep deciding what to eat for lunch.
Liberty is a well-armed sheep contesting the vote.
nospam - 13 Jul 2008 19:30 GMT
> Apple hired a company in India to do that work.  Apple hasn't done much
> hardware engineering themselves in many long years (not many fanboys know
> that the Newton was just a rebranded Sharp Wizard).

nonsense.  apple has done and continues to do a lot of hardware
engineering themselves.  and although apple and sharp worked together,
the newton was not simply a rebranded sharp wizard.  just where do
people come up with this crap?

> In the not too distant future, the Indians will come out with cheaper and
> better products under their own name, much as the Japanese, Koreans,
> Chinese, etc. have done before them.  Maybe they'll buy the Apple name to
> use as a brand, the way LG owns the Zenith name.

not likely.
Larry - 13 Jul 2008 02:19 GMT
> You really show your lack of intelligence by asking someone to
> identify an internal chipset by looking at the case. That's like
> asking someone to identify the engine by a picture of a car. I
> supplied supercomputers to many of the eight fab factories in the late
> '80s. Your mindset is trapped in the 1960s.

Here's an article from Jan 2007 on the 3G's tiny GPS receiver:

http://www.gpslodge.com/archives/009147.php

According to this article:
http://wirelessanalyst.blogspot.com/2008/06/infineon-wireless-business.html
Hammerhead II was developed to give GSM phones the required E911 GPS
function.  You'll probably find it in GSM phones since 2007.

"Infineon’s strategy seems to be to provide low-cost cellular platforms
whose gaps can be filled by other vendors. The 2G iPhone platform is a good
example. While its cellular ICs were from Infineon, the application
processor was from Samsung, WLAN from Marvell and Bluetooth from CSR. This
model will work fine as long as handset vendors are interested in picking
the best-in-class components based on cost and performance. If, on the
other hand, the trend drifts towards highly integrated single vendor
solutions, the handicaps in Infineon’s mobile portfolio will result in the
company losing its market share, potentially including iPhone designs 2009
and beyond. Infineon will not be in a position to compete with the likes of
Qualcomm, Broadcom and STM, all of whom have a complete portfolio to build
single-stop cellular platforms. "
Beer Drinking Dog - 13 Jul 2008 05:51 GMT
>> You really show your lack of intelligence by asking someone to
>> identify an internal chipset by looking at the case. That's like
[quoted text clipped - 10 lines]
> Hammerhead II was developed to give GSM phones the required E911 GPS
> function.  You'll probably find it in GSM phones since 2007.

Funny that you'd be posting this Larry. Particularly funny given that
you were the one heralding only a couple days ago that the 3G iPhone had
NO GPS chip in it. In all caps, as I remember. Ironic that the
information on this chipset has been floating around on the web for a
year and a half when you originally claimed it didn't exist. And now
you're taking credit for sharing this wonderful info with us, when most
of us could care less what the hell you have to say. You rally about the
"fanbois", but you seem to be one yourself--only you're a fan not of
Apple but of yourself.
Larry - 12 Jul 2008 02:27 GMT
4phun <vic.healey@gmail.com> wrote in news:4099de52-4da8-4155-80a1-
fee50ec7b527@k30g2000hse.googlegroups.com:

> Why is that Larry? You said it doesn't have a GPS chip. Apple says it
> does BTW.

THE CLOT THICKENS!

They DID pull the bottom shield off it and I didn't see any components
on it so just went by it late last night....

Go here!
http://live.ifixit.com/images/3jYKHyIVrAHnG4Br-large.jpg
This is the BOTTOM of the board...see our white label on the lower right
corner with the gold contact?

Now, go to the UPPER LEFT corner of the board...opposite our white
label!

There's yet ANOTHER coaxial connector!  THIS one is hooked to two small
little white components, directly!  The 6-pin flatpack I'm guessing to
be the front end RF amp and mixer of the GPS receiver.  The bigger chip
next to it, would be the first IF amplifier as it has two traces to the
6-pin flatpack's output.  The bigger white chip then feeds the oddball,
not-listed-anywhere-by-anyone LBEE1WRLFC-255 IC that there is no listing
for on Google, either.

OK, this is most probably its GPS receiver I passed over because of all
the hoopla over the OTHER side the data geeks are analyzing.

I apologize for the error, I've found its oddball, unknown GPS receiver
chipset noone has ever heard about....but someone, somewhere in China
has produced....??  go figure.  The big grey chip feeds the processor
through the traces and through-board traces below it....who knows what
data...??

This side of the board with two RF connectors on it, must point towards
the new plastic bubble that has replaced the RF-unfriendly aluminum back
on v 1.0.  Buried in that plastic must be the panel antennas....under
your hand pointing towards the ground as you hold it.....???  Stupid!  
REALLY STUPID!  The antenna's pointing AWAY from the birds!

You guys with FruitFones, when you find an area where the GPS starts
moving you queerly around on the map, try holding the phone above your
heads (outdoors, not inside the metal car roof of course, with the
display pointing DOWN towards you and the ground!  I bet the GPS signal
goes way up and the queer movement stops....
Larry - 12 Jul 2008 02:43 GMT
4phun <vic.healey@gmail.com> wrote in news:4099de52-4da8-4155-80a1-
fee50ec7b527@k30g2000hse.googlegroups.com:

> Why is that Larry? You said it doesn't have a GPS chip. Apple says it
> does BTW.

Look at teh plastic back:
http://live.ifixit.com/images/OQmYpGBwLK43uPoA-large.jpg

Look along the upper left edge and you'll see the matching RF connector
that plugs into the hole of the GPS receiver next to one of the screw holes
that holds it tight against the back through the board mounting
screws...the brass lined screw holes.

The GPS antenna is under that plastic bubble marked with a circled WC-2 all
along that edge to over by the brown folded circuit board to the right of
WC-2.

So, as you're holding the phone in the vertical viewing position with the
docking connector pointed down, looking at the screen with your hand
wrapped around it, The GPS antenna would be along the right side back edge
(under your finger tips holding it with your left hand.  To maximize GPS
reception get your fingers off the back panel's rightside edge and hold the
phone in your left hand by its left edge and you'll probably get bigger
signals from the birds....(c;

Sure would like to find out more information on that LBEE chip.  The
internet engines find nothing with that number on it.....

Google is usually very good at finding even house numbers of ICs with a
thousand websites trying to sell them to you.....With this number, nada...
Oxford - 12 Jul 2008 04:35 GMT
> internet engines find nothing with that number on it.....
>
> Google is usually very good at finding even house numbers of ICs with a
> thousand websites trying to sell them to you.....With this number, nada...

again, apple has always done a lot of custom work, so common chip
numbers will rarely pull much up. you are dealing with an engineering
firm, not a simple "carrier" like verizon or att, or just a "metoo"
company like nokia.
News - 12 Jul 2008 12:25 GMT
>>internet engines find nothing with that number on it.....
>>
>>Google is usually very good at finding even house numbers of ICs with a
>>thousand websites trying to sell them to you.....With this number, nada...
>
> again, apple has always done a lot of custom work...

Love that custom activation interface.

"It is better to look mah-velous than to work..."

Mah-velous!
Oxford - 12 Jul 2008 15:45 GMT
> >>Google is usually very good at finding even house numbers of ICs with a
> >>thousand websites trying to sell them to you.....With this number, nada...
> >
> > again, apple has always done a lot of custom work...
>
> Love that custom activation interface.

- :) yep! apple f.cked up, no question about it... heads will roll over
that debacle. I guess in England it was technically O2's fault, but
everywhere else seems to be squarely Apple's goof.

trying to do a simultaneous, planetary rollout is just too complex.
News - 12 Jul 2008 17:11 GMT
>>>>Google is usually very good at finding even house numbers of ICs with a
>>>>thousand websites trying to sell them to you.....With this number, nada...
[quoted text clipped - 4 lines]
>
> - :) yep! apple f.cked up, no question about it...

Admitting to the problem is the first part of the twelve step program...
Charles - 13 Jul 2008 00:08 GMT
> Sure would like to find out more information on that LBEE chip.  The
> internet engines find nothing with that number on it.....

The GPS chip is Infineon's PMB 2525 Hammerhead II.

http://www.techonline.com/product/underthehood/209000013?pgno=1

Signature

Charles

Larry - 13 Jul 2008 05:00 GMT
>> Sure would like to find out more information on that LBEE chip.  The
>> internet engines find nothing with that number on it.....
>
> The GPS chip is Infineon's PMB 2525 Hammerhead II.
>
> http://www.techonline.com/product/underthehood/209000013?pgno=1

Yeah, I see it.  The spec sheet says it's for sellphones, not GPS
receivers.  That must be why the video posted was wandering around in a
couple of the realtime videos on the blogs.  The ATT video on YouTube was
edited so you couldn't see any time it went tits up as he was driving
along...otherwise they would have left the camera pointing constantly at
the phone...not little snippets of phone video driving straight mixed in
with pictures of the ATT bureaucrat driving the car.  It was edited out.
Todd Allcock - 13 Jul 2008 06:19 GMT
> > The GPS chip is Infineon's PMB 2525 Hammerhead II.
> >
> > http://www.techonline.com/product/underthehood/209000013?pgno=1
>
> Yeah, I see it.  The spec sheet says it's for sellphones, not GPS
> receivers.

It's spec sheet says it's designed for cellphones because of it's tiny size-
not because of any differences in performance.  Car-navigation GPS
receivers typically have more room under the hood and can get by with
larger (cheaper) chips.  Smaller is more expensive.  

> That must be why the video posted was wandering around in a
> couple of the realtime videos on the blogs.  The ATT video on YouTube was
> edited so you couldn't see any time it went tits up as he was driving
> along...otherwise they would have left the camera pointing constantly at
> the phone...not little snippets of phone video driving straight mixed in
> with pictures of the ATT bureaucrat driving the car.  It was edited out.

Your conspiracy-theory thinking at work, huh?  The Hammerhead chips seem to
get good reviews- a bit slower to first fix (less of an issue with
cellphones, given AGPS assist) but as accurate as Sirf III chips, and
(surprise!) TomTom, a respected GPS manufacturer, even uses them (the larger,
cheaper, Hammerhead I chips) in some of their dedicated car-nav units.  

So, can we finally lay this iPhone GPS nonsense to rest?  The iPhone 3G has
a perfectly adequate, "real" satellite-based GPS under the hood.  Any
"problems" with it will stem from inadequate software (Google Maps only, so
far) or unit placement.
Dennis Ferguson - 13 Jul 2008 08:11 GMT
>>> Sure would like to find out more information on that LBEE chip.  The
>>> internet engines find nothing with that number on it.....
[quoted text clipped - 5 lines]
> Yeah, I see it.  The spec sheet says it's for sellphones, not GPS
> receivers.

No it doesn't, it says it is also for PDAs and "PNDs" (Personal
Navigation Devices), which covers just about everything.  The reason
why they single out mobile phones for special mention is just because
the chip apparently knows what to do with standard UMTS/GSM and CDMA
assistance data when you have that available (note the 1 second TTFF),
though it doesn't rely on it.

>             That must be why the video posted was wandering around in a
> couple of the realtime videos on the blogs.  The ATT video on YouTube was
> edited so you couldn't see any time it went tits up as he was driving
> along...otherwise they would have left the camera pointing constantly at
> the phone...not little snippets of phone video driving straight mixed in
> with pictures of the ATT bureaucrat driving the car.  It was edited out.

I think this is a different issue.  Note the stuff about "Global Locate's
Host-based architecture" in the glossy for the chip.  Part of the
GPS receiver is implemented as an application in the phone's central
processor, which runs Unix and isn't likely to be real proficient at
anything beyond the softest of real time requirements.  They probably
still have some application tuning to do to make it really good at
this.

Dennis Ferguson
Larry - 13 Jul 2008 18:02 GMT
> Part of the
> GPS receiver is implemented as an application in the phone's central
> processor, which runs Unix and isn't likely to be real proficient at
> anything beyond the softest of real time requirements.

It's fantastic!  Watch this!

http://www.youtube.com/watch?v=iMYBjz3AU3Y
Tim Smith - 12 Jul 2008 12:30 GMT
> 70%.  This is why the header to this post is they can't read.  "Assisted
> GPS" ISN'T a GPS installed inside the phone, from looking at the high

You should actually learn what AGPS is.

Signature

--Tim Smith

 
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