yashsingh1/xdaforums huggingface dataset:
[Galaxy Note GT-N7000 General] steveblue:
Many folks I communicate with keep assuming the Note's sPen is just another phone stylus ( or maybe a slightly tweeked one). In trying to explain the huge difference, and finding that none of the major reviews do it reasonably, I did some fact finding to help explain it (and why it is special) compared to a capacitive stylus. Thought other folks would like the details. Please reply with a more concise explanation if you have it. -steveblue

Briefly:

The Note has a Wacom dual digitizer, a first in a mainstream smartphone. That means is supports both capacitive multi-touch and active pen input from a precise EMR digital pen and a digitizer layer under the screen. Wacom is the world leader in pen based computer technologies and first developed this technology for Tablet PCs for very accurate handwriting level pen use that works with touch displays.

Details:

Almost all other phone styluses are just capacitive and therefore no more accurate than your finger. The Galaxy Note's active pen uses Wacom's EMR patented technology. EMR which stands for Electo-Magnetic Resonance, which requires no internal power to generate a signal on the pen-side that enables the pen coordinates on or above the screen to be detected (the display provides the power rather than the pen). The Note's screen surface incorporates a sensor board that detects the pen's movement. Weak energy is induced in the pen's resonant circuit by a magnetic field generated by the sensor board surface. The pen's resonant circuit then makes use of this energy to return a magnetic signal to the sensor board surface. The digitizer board under the screen detects information on the pen's coordinate position and angle, as well as on its general operating condition including speed and writing pressure, etc.

With EMR Technology, the sensor unit is installed behind the display screen. Because the sensor does not cover the front of the display, the quality and brightness of the displayed image are not compromised.

Wacom's sensors are high precision and high resolution, which together make it possible to detect even small hand-written letters. The sensor traces the movement of the human hand and reproduces such "human" elements as the feel, force and ambivalence of the pen tip.

The dual capacitive multi-touch and EMR active pen technology is called Wacom Feel It and was developed and honed over 2 years on major ( HP, ...) Tablet PCs. The Galaxy Note is the first use in a smart phone.

References ( and more info):

As a somewhat new user I can't put links in - message me for a full set of refs or google 'wacom emr' and 'wacom Feel It'. Note you'll get a llot of PR page but their will be technology details too.

-steveblue

dipaola.org
[Galaxy Note GT-N7000 General] galaxytab1:
Your effort here deserves appreciation
[Galaxy Note GT-N7000 General] lifehijack:
Thanks for providing this useful information.
[Galaxy Note GT-N7000 General] ranjan.alva:
Thanks for very useful information,

Does display shield (Protect Cover) reduces the accuracy of S Pen...??
[Galaxy Note GT-N7000 General] naimmkassim:
Are u sure S pen can be use on other capacitive screen? I try this S pen on my htc sensation & it did not function at all :(
[Galaxy Note GT-N7000 General] steveblue:
The original statement does not mean you can use the sPen with other phones, it means on the Note there is a dual technology employed : 1) capacitive and 2) digital EMR. Sorry for the confusion.

-steveblue
[Galaxy Note GT-N7000 General] Ravindra9:
Thanks steveblue. Nicely explained.
[Galaxy Note GT-N7000 General] coderedcomputing:
Also wanting to know this, from the OP description...seems material between the S-Pen and the screen would cause issues...? I've been noticing some accuracy problems since putting on the SGP screen protector...
[Galaxy Note GT-N7000 General] htc9420:
The lots of wacom pens came in handy after all....:D

Even my good ol'Gateway pen is working on the Note...actually better than on the Win8...

Also, here you can read about Note's grandparents, 20 years ago ( take that Apple)

http://en.wikipedia.org/wiki/Compaq_Concerto
[Galaxy Note GT-N7000 General] Elusivo:
So from what i understand the digitizer layer or some other circuit has to be powered all the time to allow the spen to be powered at any time we decide to use it, but, won't that waste away battery during the time the spen is not in use?

If it does waste away battery while the pen is not used then it would be awesome if some dev could check if that circuit could be powered off when we dun need it and only activate it when we intend to use the spen.
[Galaxy Note GT-N7000 General] TML1504:
either way i do believe that the power for this field is very weak, otherwise (or it may be the case as well) samsungs engineers would have built some switch (soft- or hardware (sensor if pen is out)).

but generally high resonance surface fields (as it would be the one here) wont use much power anyway, so don't worry! it's more like a sensor array which detects EM "disturbances" created by the coil of the pen. pressing the buttons on the pen (eraser also possible and working on the note, but not with stock stylus) just alters this disturbance by shortening some wires of the coil and therefore generate a characteristic "fingerprint".
[Galaxy Note GT-N7000 General] NotSellingHats:
Thanks for this post.

This may sound really simple, but is there some method employed to stop ones hand from activating the screen when you write?

I really want this technology, particularly for the note-taking feature, but I am concerned that if I write 'normally' my hand will continuously activate the screen which will ultimately mean that I will have to hold the s-pen in a really uncomfortable fashion sort of like I was holding a chopstick to use it? :eek:
[Galaxy Note GT-N7000 General] samo_ak47:
Thats friggin amazing, seriously I was really curious to find out how the spen actually worked, and its something out of a sci fi movie. for this tech the device should be way more expensive. spen rocks
[Galaxy Note GT-N7000 General] solarboy:
In S-memo settings there is an option to tell the screen only to recognise edits made with the s-pen.

Hope that helps.
[Galaxy Note GT-N7000 General] voxano:
Most apps for writing on the Note employ what's called "palm rejection", so writing with the S pen is surprisingly natural. No awkward hand position :)
[Galaxy Note GT-N7000 General] evilgeeius:
In rain?

Would the EMR pen work in the rain? Capacitive screens generally don't work well in rain so this would be an advantage in the field.

Great article.
[Galaxy Note GT-N7000 General] dbolivar:
Thanks for the post! I have a few questions I would like to ask the experts on this subject:

1) How does the screen calibration work? Some people say there's an auto-calibration mechanism, but in my experience, even doing some "tricks" to calibrate it, I noticed the pen is centered only in a certain angle (not necessarily what people are used to when writing).

2) If we use a capacitive stylus on a regular tablet (say, the Galaxy Tab 2), even if it has a small head, is it correct to assume it will never be as precise as the S-Pen on the Galaxy Note series (including the tab)?
[Galaxy Note GT-N7000 General] Reynaldinho111:
Great explanation and well written. Excellent read :) thank you.
[Galaxy Note GT-N7000 General] uzeroni:
This does make me wonder why other manufacturers of digitizers (like the one in the Flyer, Vaio Duo 11 and LG Vu) don't use this kind of tech? I've seen a Vu and a Note N7003 (The one with the LCD screen) under direct light and boy, did the Vu have HORRIBLE glare.
[Galaxy Note GT-N7000 General] sount:
Hope this info is not too old. Within the Note II, I've noticed a setting where it looks to switch this field off (speculating here) if the pen itself is attached. The option being:

Battery Saving

Disabling pen detection when the pen is attached can extend battery life
[Galaxy Note GT-N7000 General] Kamy:
Interesting info! Thanks for sharing.
[Galaxy Note GT-N7000 General] amd-dude:
Thanks for this, always wanted to know how it worked
[Galaxy Note GT-N7000 General] steveblue:
I was the original op on this. I not that this Wacom EMR process we have is now using the same tech for the MS surface pro. So in some ways, this is validating our tech after all these years. One day apple might realize their folly in not moving to it. So you are all early adopters of a tech that is catching on.

Sad how ( and I give them hell all the time in the comment sections) that the tech media ( typically pro apple site like cnet, engadget, ...) never explain the difference in this pen tech we have and the super lame capacitive pen Apple has, always implying the int he Note it is the pen and never mentioning a full digitizer under our displays and the full way it works and is superior.

Lastly someone needs to investigate if the ms surface pro tech is exactly the same or for instance a minor upgrade - I know from my snooping it is generally the EMR Wacom tech we have but has it been updated by Wacom I wonder - as this might show direction for the Note 3.
[Galaxy Note GT-N7000 General] indrajatmiko:
Thanks for very useful information,
[Galaxy Note GT-N7000 General] neograndizer:
Very informative article. Thanks for the info.

I just played with the Surface Pro Pen... on my Note 2. LOL. All the display models in the Microsoft store I was in were filled with people trying it. I saw the pen open and lying around with no one using it, so figured what the heck. Tried it and found it okay on the Note 2. Even more impressed when I used it's push button top as an eraser. Saw the price was $10 cheaper than the official S-Pen with eraser (or OEM S-Pen for that matter) and decided to buy it (the pen, not the Surface Pro).

I said it was okay on the Note 2 because of a slight calibration issue. The pen has to be perpendicular to the screen to be spot on accurate. If it's held at an angle, the 'cursor' will be a mm or two off and under the actual tip of the pen. Funny thing is, on the Note 10.1, it has no real calibration issue. It is pretty accurate even at an angle.
[Galaxy Note GT-N7000 General] amarch:
s pens in chinese smartphones

I am beginning to see S Pens sold with some chinese smartphone clones. Do you think these pens have a similar performance? There is one such "Star N9599 quad core MTK6589 note 3 3G Cell phone 5.7" QHD 1280*720 1GB RAM android 4.2 8.0MP S pen" in DHGate, for example. I of course mean "similar"...not "equal" ;). Thanks for your excellent review.
[Galaxy Note GT-N7000 General] zviki:
Yeah,my friend bought some fake Chinese Note2 which was in exactly the same box as original,but... spen is only drawn (embossed) on the phone body(frame) :what::p

...from SG NOTE N7000 with Tapatalk 2
[Galaxy Note GT-N7000 General] yogi_raj2:
Great explanation steveblue

As per the latest updates, whenever the S-Pen is recognized by the screen no random clicks can be made by the hand. Only the S-Pen is able to emulate clicks on the screen.
[Galaxy Note GT-N7000 General] AladdinWarlord:
Hi man do u know how to calibrate the spen on galaxy Note 10.1 2014 edition
[Samsung Galaxy Player 4.0, 5.0] maxq1:
..as the title indicates, and on this mod. i could install apps off android market & gameloft just fine though. it's just that whenever i try to dl anything (ie, from xda, multiupload, rapidshare, etc...) via the standard browser, it's unsuccessful/failed. tried at least 3 wifi networks already and results are the same. TIA to anyone who can shed some light!
[Samsung Galaxy Player 4.0, 5.0] Fulaeetoy:
Use firefox browser.

________________________________

~ Sent from iOS/Android device
[Samsung Galaxy Player 4.0, 5.0] cvcduty:
Download anything

Try this off the Market.

https://market.android.com/details?...wsMSwyLDEsImNvbS5od2tyYmJ0LmRvd25sb2FkYWxsIl0.

I had this issue but this app will let you download just about anything, I think... well, it solved my problems.

Good luck.
[Optimus One, P500, V General] cekuhnen:
Hi there

I recently switched to CyanogenMOD and also bought AWD EX and while having the phone set on battery save something seems to leach the it empty fast within a day and not using it even a lot.

I am not very familiar with Android and finding what process might be responsible for the battery drain.

Any idea? Is CyanogenMOD or ADW EX very battery demanding?
[Optimus One, P500, V General] santachaos:
First try out BetterBatteryStats to see what is keeping your phone awake.
[Optimus One, P500, V General] dzhonsons:
Did u battery wiping/calibrating before/after flashing ROM?
[Optimus One, P500, V General] PokMahPok:
yep, download betterbatterystats, (xda edition would do) then look for processes that use a lot of time, not those with few seconds. If there isnt any, look for any partial wakelocks that also, use a lot of time and root out the battery draining application.

If nothing seems to be wrong, i suggest you download battery calibration app from market : http://bit.ly/x5sPR6 and calibrate.

Cheers:D:D
[Optimus One, P500, V General] Ianis G. Vasilev:
@PokMahPok: GET RID OF THE PICTURE IN THE SIGNATURE!!!

@cekuhnen: The most often experienced problem is that the CPU never actually sleeps. Go to Settings > About phone > Battery use and if "Android System" is using the battery the most, reflash your ROM.
[Optimus One, P500, V General] PokMahPok:
@the pic complain lol whats wrong wif the pic D:

@cpuneversleep. the cpu not sleeping is probably due to a wakelock thats keeping it from going to sleep. use betterbatterystats to sort out the burden app.
[Optimus One, P500, V General] cekuhnen:
ah I did not calibrate the battery - So I will download the app and follow the charge and then discharge process?

I think I did this cash wipe fore flashing the rom. Why do I need to do this?

I have attached the screenshots from my Android system including the states

and as it looks Android System is what is using up 45% of the battery.

However again I have no idea how to read this or what it means. What are those wakelocks - I assume a process preventing Android to put the CPU into a lower MHZ frequenze to drain less power?
[Optimus One, P500, V General] cekuhnen:
Why should I reflash it - what does it fix or do? I am asking because I do not understand the reason for this but would love to get educated ;)
[Optimus One, P500, V General] PokMahPok:
Wakelocos are processes tat cn prevent your phone from going to sleep properly, which may cause battery drain. It is under partial wakelocks(click the scroll down menu)

When you reflash your rom, your sort of "reset" it back to its "default" state, so anything tat may have affected the battery would be gone.
[Optimus One, P500, V General] cekuhnen:
with reflash the CyanogenROM do you really mean to reflash it or do a factory reset ?
[Optimus One, P500, V General] PokMahPok:
its just a reflash, all your settings will go back to default. its not a factory reset.
[Optimus One, P500, V General] cekuhnen:
Ok I wiped clean the phone, reflashed the rom, did a battery calibration

but for some reason I still have the large feeling that CyanogenMOD 7.2.0 drains the batter dramatically faster than Froyo did.

When I woke up 40% of battery was lost within the 9 hours I slept.

When I only browsed the web a little the battery took another deep hit as you can see in the graph when Wifi got on.

However in contrast to before now the only two things taking up the biggest parts seem to be cell Standby and Phone idle. At last the android system is not doing it.

Considering that 10 hours of mainly stand by drains nearly 50% of the phone makes this a unusable situation. Mild browsing the web for 30 minutes killing 10% is just bizarre.

Do you have any other idea? I was under the impression that CyanogenMOD 7.2 has much better battery life but I feel at least how things work on my phone it is way the opposite.

Could ADW Ex be the offender ?
[Optimus One, P500, V General] ScripterJR:
What kernel are you using? There is a kernel out there, I believe franco's that drains battery on standby. I had this problem to and therefore switched.
[Optimus One, P500, V General] cekuhnen:
Yesterday I flashed adfad666's Unofficial CM7.2.0-RC0 and this one is using this Kernel:

26.35.14-franco.Kernel-Gingerbread+francisco@francisco

What kernel would you propose to use which would work with the CyanogenMOD ROM I am using?

If you have a better combination please tell me.
[Optimus One, P500, V General] ScripterJR:
I've always had battery drain with kernel .35 even though battery life is suppose to be better. For better battery and stability it's better, in my opinion to go with a .32 kernel. You have flashed the new baseband therefore you'd have to revert back but I don't recommend that. CM7 just announced official release and a nightly build is up. I'm giving a try (seems to be better responsive). This has a different kernel. It uses 2.6.35.10.
[Optimus One, P500, V General] cekuhnen:
I actually do not have the new baseband installed - flashed I only flashed the Cyanogen ROM with the old baseband.

Thus I could easily flash any oldbaseband rom.

Anything you suggest?
[Optimus One, P500, V General] ScripterJR:
Yes, I suggest AdFad666's A8 version of CM7. I then suggest to flash Goldenleaf.v111206 from http://xdaforums.com/showthread.php?t=1227682

Don't forget to wipe battery stats after all of that.
[Optimus One, P500, V General] cekuhnen:
Where do you get the A8 build from?

I only find this as being the latest:

http://xdaforums.com/showthread.php?t=1436952#5

Do I even need to flash this old baseband rom he mentions on his website when I never did change my old baseband anyway?
[Optimus One, P500, V General] ScripterJR:
You are correct it's that version and no don't flash old baseband as you have it.
[Optimus One, P500, V General] cekuhnen:
ok cool

I just saw that he uploaded the A8 version so I downloaded it and will try to flash the .32 version and then the Kernel you listed.

Claas
[Optimus One, P500, V General] PokMahPok:
Did you try to overclock your phone? It helps our phone to run certain tasks faster, and using less battery. 600mhz isnt generally enough
[Optimus One, P500, V General] ScripterJR:
None sense. I haven't overclocked my phone and it's working just fine.
[Optimus One, P500, V General] cekuhnen:
Just by accident I noticed that after a long time the alarm clock time display was working like a screensaver - this might explain why during the night the phone lost 50% battery.

Also having switched to the .32 ROM and using goldenleaf the screen now has no lags with the AdFad666's A8 version.

So I will charge the phone again and see how it will perform.

I played with the governors and power settings a little to accelerate the home launcher in previous tests but noticed that ADW EX is much faster than all other launchers when it comes to screen fresh rate. Maybe ADW EX is also using the hardware acceleration - not sure.

Anyway I set the power governor to battery to save some juice but it did not help.
[Optimus One, P500, V General] cekuhnen:
@ PokMahPok

is this "SD-Booster@3096" really that much improvement?

The reason why I ask is because one time I was running a live wall paper app which loads per desktop a new image and when rotating the phone the app reloaded the images and this process took often few seconds - quite annoying.
[Optimus One, P500, V General] PokMahPok:
im not so sure about the smoothness, i was talking about the battery improvement. maybe you should try overclocking for a few days or so? if nothing happens just swtch back ;)

yep, it works. my speed improved by about 20 percent. do live wallpapers run on ram? if it runs on ram i do not thing theres anything the sd booster can do. live wallpapers drains batt too, btw
[Optimus One, P500, V General] cekuhnen:
So I installed adfad666's CM7.2.0-RC0 A8 and the Goldenleafe Kernall which comes with it and tested the phone over night again.

The batter after 9 hours dropped by 9 to 10%

Wifi was still on and Auto-Sync off. This is a drastic improvement compared to a former build and the Franko Kernel. I am sure with WIFI off the drain would be even less.

What confuses me how ever is why for 9h the phone not touched it seemed to have been awake for roughly 6 hours.
[Optimus One, P500, V General] ScripterJR:
I'm glad you like it :) now for more info use that app suggested before. I dont use it so i cant be of much help but it is caused by an app waking up ur phone.
[Optimus One, P500, V General] cekuhnen:
ok

so I guess something is still waking up my phone during the night:

This night I had WIFI turned off the the phone clocked down.

Any idea what else I could do.

I see the GPS system being active for hours - I did not even have it on for more than 2 minutes !!!
[Optimus One, P500, V General] santachaos:
Options:

1.keep your GPS on. It is only used when you are using an app that needs location serviceals. If not, its off.

2. After turning off GPS reboot your phone and it will be fixed
[EVO 4G Q&A, Help & Troubleshooting] EVOlvera:
I'm having trouble getting into recovery, when i jump into bootloader it says s-off but gets stuck when i scroll to recovery, any suggestions? should i try flashing amon ra? but im just not sure if its rooted right cause i bought this phone off craigslist as a backup phone
[EVO 4G Q&A, Help & Troubleshooting] Diablo67:
This is Revolutionary root tool,it will help you with your problem,you can use this to recover your phone also,i would suggest running a different recovery....

http://revolutionary.io/
[EVO 4G Q&A, Help & Troubleshooting] teh roxxorz:
You can go to the dev section and flash your recovery of choice: amon ra/ amon ra stlye / twrp 2.0 / cwm; just flash it via PC36IMG [explain in the OP of the thread], then flash a rom.
[EVO 4G Q&A, Help & Troubleshooting] {ParanoiA}:
If you r already s-off then you don't need revolutionary. Do what roxxor says

Not Sent
[EVO 4G Q&A, Help & Troubleshooting] BlaineD:
Yes. Just reflash recovery of choice. I've had it happen.
[LG Optimus 3D] KurdX:
Last night I switched my SD card (16GB Class10 Kingston) in my O3D and checked the "Use external/internal sd" in CM settings and rebooted my phone.

The /root/sdcard path was located to the INTERNAL sdcard before the switch.

I think that the option was NOT checked BUT when it check it, it became "Use internal" which is incorrect.

Anyway, my phone wont boot, not even when holding down VolUp+Power.

I will keep trying but just a warning to you all, don't do any hardware change with the Nightly builds (assuming that the sdcard is hardware)!

I'm using linux so I'm not sure that it's possible to use any software like the softwares on windows.
[LG Optimus 3D] rezzsha:
have a look at this thread http://xdaforums.com/showthread.php?t=1433274 , they have the same problem as you. Apparently its because you switched the internal/external.
[LG Optimus 3D] gamesz2:
Flash the rom again ??? Power + vol-down 3d button .. for cwm ??
[LG Optimus 3D] omgomg:
It's very important you report this bug to arcee on http://rootzwiki.com/topic/4883-cyanogenmod-cm7-nightlies-for-optimus3d-and-thrill/

He doesn't follow threads on XDA.
[LG Optimus 3D] KurdX:
Are you seriously answering my thread without reading my entire post?

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

No worries, I can flash back the stock with lg support tool using windows, but my current rom and settings will be lost.

Just a heads up if any of you would try the same thing.

And mine doesn't go in to recovery mode either. I doesn't boot whatever I try.

Only thing that can be done is what I said above, Holding down VolUp+Power while plugging in the usb in the computer so the computer can find my phone as a Omap4430 device.
[LG Optimus 3D] gamesz2:
Ow iam sorry man i read it wrong iam from holland :0

Sorry
[LG Optimus 3D] lrpvo:
Hi guys,

Same problem to me... A dead phone w/e I do. Won't get my PC recognise it as OMAP4430 device (not running XP, but 7)...

Any ideas? Cannot easily get my hands on an XP PC...
[LG Optimus 3D] KurdX:
You don't need XP, will work on 7 aswell.

Haven't had time to fix my phone yet but I will fix it through 7 so I can post the result here when fixed.
[LG Optimus 3D] blmn1337:
same problem here, too.

any solutions yet?