Develop Bugs

Possible app idea, proximty sensor.

I've been wondering, would it be possible to make an app that kicks in when you're on a call, that uses the light sensor as a proximity sensor.
The basic idea is, you put the phone to your ear, it blocks light and the screen locks, take it away from your ear, it detects more light, and unlocks the screen so you can enter numbers etc.
I was also thinking instead of being set at specific light levels (less than 50 for off, over 50 for on etc) it could work on a factor of relative brightness, so if it gets 5 times brighter it knows to unlock the screen.
Does this sound possible?

I don't think this can work. What happens during the night?

very old idea
phone must have bio sensor near speaker which touch to ear, so only hardware solving
using light sensor will work only with light, at dark place\time it doesnt work
another way is to make sensitive top of sensor display for touching but other part of display must be blocked
deadend

Tha X1 speaker is right next to the earpice, it's almost part of it, that's why gave me the idea.+As for dark places, that's why I suggested it measures a differennce in brightness, rather than specific values. Obviously at a certain point, it won't detect any change, I guess then the programdetect darkness up until the point of answering the call, and disable itself.
Or maybe there's a way to use the backlight to create a lightsource but have the touch part off...
Brightness would increase as the phone approached the ear, then drop off as it got there, then similar when you take it away.

Actually, based on the intention, I think it would be sufficient if the phone app is active, the screen is on and locked if phone app is inactive. Touching cheeks, etc are all not real problems in my opinion.

xperia tweak
xperiatweak will fix this issue.

No in-call curtain in TP2

Hi,
I'm using an original ROM for TP2 with Manilla 2.1.38158.2 (as shown in Settings | About).
AFAIK this version should include the "in-call curtain" functionality, on which the call buttons are locked during a call. However, I see no sign for this anywhere.
Does anyone have an idea how this feature can be turned on, or how do I add it?

The curtain is unnecessary. Your device as a proximity sensor that turns off your display when you hold you face it. You don't need the curtain to lock the buttons. When you move the device away from your face, you probably want to use the touch screen so it turns back on.

I usually talk using a Bluetooth headset while the device is kept in my bag or pocket. The proximity sensor should theoretically detect that the device is covered and keep the screen off, but it often fails to do so, allowing random buttons to get pressed.
S2U2 doesn't solve this either, as it keeps the device unlocked during phone calls. There's TouchLockPro, but I don't like the way it works.

Have you tried CSDEVCTRL? I recall it allows you to lock the device during and after a call.

Yes, I found it in one of the forums here a couple of weeks ago. For some reason it didn't keep the device locked during calls, though specifically configured to do so. I haven't looked deeper into that, since I thought that the supposedly built-in curtain would do.

BTW, a simple test shows that the proximity sensor is completely useless for this scenario. I put a small object on the sensor, locked the phone and turned it off. I then called it from another phone and answered using the Bluetooth headset. Although the screen was blocked with an object, it was completely unlocked and could be pressed. The proximity sensor turned the screen off only if a movement was detected towards the screen, and not when something was already blocking the screen.
I repeated this test several times with the phone in a bag. I locked it, called, answered using the Bluetooth headset and tried to press against it from outside the bag. In every single time on-screen buttons got pressed.
As a matter of fact, the TP2 is way worse than the original TP in this sense. In my previous TP I could answer a call using the headset, take out the phone (carefully so it won't hang up by a screen press), lock it again and put it back in the bag/pocket. Now with the TP2 the proximity sensor wakes up the device unexpectedly, so I can never keep it inside anything during a call.

There is a shareware Pocket Shield which provides a screen curtain. You may have a try for your TP2 at this link:
http://pocketshield.netserver01.com/download.htm

erezshermer said:
Hi,
I'm using an original ROM for TP2 with Manilla 2.1.38158.2 (as shown in Settings | About).
AFAIK this version should include the "in-call curtain" functionality, on which the call buttons are locked during a call. However, I see no sign for this anywhere.
Does anyone have an idea how this feature can be turned on, or how do I add it?
Click to expand...
Click to collapse
I tried installing the InCallCurtain from my Touch Pro ROM and it does not work with the TP2. It is a different dialer so the calls for the curtain may not be in there.

My phone has no problem turning itself off when it gets near my face. Why would you want a call curtain?

Kloc said:
My phone has no problem turning itself off when it gets near my face. Why would you want a call curtain?
Click to expand...
Click to collapse
Did you read the thread ?!

Thanks Angler, I just tested Pocket Shield. I must say I like the progress of this program since the last time I tried it.
I won't use it as a general lock utility because of a severe issue: for some reason my Bluetooth headset loses the ability to answer calls while it's locked. I click the headset button, the ring sound moves to the headset, and the call is not picked up.
I'm thinking about only using its curtain feature - use only the protection during phone calls without locking. This seems to work, however PocketShield locks my device whenever it powers on and I can't find a way to cancel that without completely turning it off. Any ideas here?

(edit: removed double post)

erezshermer said:
BTW, a simple test shows that the proximity sensor is completely useless for this scenario.
Click to expand...
Click to collapse
Prox sensors come in different types. They aren't all configured to turn off "when covered" by just anything. Since the primary purpose is to save screen power when held against your face, it may well be technically designed to detect things that can conduct electricity, like you. If you're curious about it, as I am, next time you test it, cover the prox sensor with your thumb.
If that doesn't work, I recommend on second test. Just because there is a prox sensor doesn't mean that HTC is using only that for turning off the screen. In order to avoid accidentally turning it off while you're trying to use it, which would be annoying, they might be using the accelerometer to detect whether it's being held like a phone or not, and not turning it off if it isn't. Test two is to hold it in a position at an angle as if you would if you were talking on it, and hold your thumb over the prox sensor.
I don't have my TP2 yet, that's why I haven't tried it myself. If you're already on to your current solution and don't want to I understand, but if you do, I'd be curious as to your results.

fortunz said:
Prox sensors come in different types. They aren't all configured to turn off "when covered" by just anything. Since the primary purpose is to save screen power when held against your face, it may well be technically designed to detect things that can conduct electricity, like you. If you're curious about it, as I am, next time you test it, cover the prox sensor with your thumb.
If that doesn't work, I recommend on second test. Just because there is a prox sensor doesn't mean that HTC is using only that for turning off the screen. In order to avoid accidentally turning it off while you're trying to use it, which would be annoying, they might be using the accelerometer to detect whether it's being held like a phone or not, and not turning it off if it isn't. Test two is to hold it in a position at an angle as if you would if you were talking on it, and hold your thumb over the prox sensor.
Click to expand...
Click to collapse
Tested that with some objects and with my hand. Same results. Even with the phone being held vertically like I'm talking with it, the screen won't turn off if it was covered before the call. When removing the hand/object from the proximity sensor and covering it again - the screen turns off immediately.
Maybe this is not a limitation of the sensor but a simple programmed behavior. If so, perhaps it can be patched... <evil grin>

Update. Under HKEY_LOCAL_MACHINE\Software\HTC\Proximity there are 3 keys: ProximityDetectStatus, ProximitySensorOn, UnexpectedWakeup.
The first key is updated live by whatever the sensor detects. I now know for sure that the sensor continously knows if there's something on top - the dialer behavior is programmed.
I'm not sure what the other keys do. ProximitySensorOn was set to 0 on my registry and now when it's 1 I see no difference. Gotta go, will continue with that later.

Switching the Proximity Sensor off...?!
erezshermer said:
Update. Under HKEY_LOCAL_MACHINE\Software\HTC\Proximity there are 3 keys: ProximityDetectStatus, ProximitySensorOn, UnexpectedWakeup.
The first key is updated live by whatever the sensor detects.... I'm not sure what the other keys do. ProximitySensorOn was set to 0 on my registry and now when it's 1 I see no difference.
Click to expand...
Click to collapse
Although I was looking for other reasons -- see below -- I get the same result; & even when you do change ProximitySensorOn to 1, it doesn't survive a soft reset: simply reverting to 0....
What I was looking for was some way of disabling the Proximity Sensor (PS) altogether: because (i) I'm deaf, & I therefore Bluetooth all calls directly to my 'hearing instruments'; & (ii) I've just bought a case which covers the darned thing (meaning the PS) up, permanently locking the touch-screen when it's on! (Aargh.)
Having spent the last couple of hours (plus) searching the TP2 forums on here (& a related one on PPC Geeks...), I've discovered that: (i) lots of people are having PS-related problems; (ii) some of these problems are to do with TouchFLO 3D; (iii) some may be related to various forms of screen-locking; (iv) some may even be caused by other tweaks or hacks we've carried out; & -- last, but not least, as lots of other proud TP2 owners have bought similar cases -- (v) I appear to be the only one having this particular problem (...probably caused by (iv)?)!
It's as if my particular sensor thinks my ear is permanently glued to the screen... -- I can operate all the buttons & the keyboard; but the screen (even though I can turn it on with the power switch) just will not respond while the case is attached (& therefore covering the sensor...).
If anyone has any ideas -- apart from drilling a hole in the case, somewhere (randomly) to the left of the HTC logo... -- please let me know!
Thank you for reading...
- $.
PS: I have a UK-spec., unbranded, GSM Touch Pro2 (...not that this seems to make any difference); & I've already tried turning off any locks & PINs (& changing their duration), as well as the owner information screen....

Forget the Curtain.
This enables your proximity sensor even when you are using your BT

leepriestenator said:
Forget the Curtain.
This enables your proximity sensor even when you are using your BT
Click to expand...
Click to collapse
What is this CAB doing? Because I am also interested in adding support by the Proximity Sensor in TouchLockPro. So how can I start programmatically the proximity sensor? Just changing a registry key

leepriestenator said:
Forget the Curtain.
This enables your proximity sensor even when you are using your BT
Click to expand...
Click to collapse
It works 。Thanks

Proximity Sensor

Hey i don't know if this deserves its own thread or not, but i think it'd be pretty cool if the proximity sensor on the Touch Pro 2 could be used like those on blackberries, that when you put the phone in your pocket or a case with the screen on the screen would automatically turn off then turn back on when you took it out. Don't know if this would be possible but it is a really cool concept. Thanks

blackberries turn on cause theres a little magnet in the cases that turn on and off the screen. i dont think any blackberries have a proximity sensor. the storm is the only one with a touch screen to accidentally hit but you have to click it to do anything, and if your pushing a bb hard enough into your face to make the screen click, you deserve the have it push random buttons.

oh ok, that kinda sucks, still be kinda cool if it could be done though

i was wondering if theres some way to change the sensitivity or distance of the proximity sensor, i notice when my wife was using the phone the screen would turn on and off randomly i guess because of the way she was holding it to her ear, then i started noticing through the corner of my eye that my phone was doing this as well, it must think i've pulled it away from my ear when it senses different cavities in my ear, i'd like to turn it up to an extra 1/2" or so when i do hold the phone to my ear i know for certain it stays off, and when i really do pull it away from my head the screen wakes up. has anyone found the settings for this yet? i'm running juicy rom and my wife has mightyrom

TheLetterMan said:
Hey i don't know if this deserves its own thread or not, but i think it'd be pretty cool if the proximity sensor on the Touch Pro 2 could be used like those on blackberries, that when you put the phone in your pocket or a case with the screen on the screen would automatically turn off then turn back on when you took it out. Don't know if this would be possible but it is a really cool concept. Thanks
Click to expand...
Click to collapse
you could have it that way but you would need to disable the power off after x minutes. then all you would need to do is keep the proximity sensor enabled

Changescreen has an option under the advanced settings to suspend the phone when it's placed face down or in your pocket (as long as its put in your pocket upside down). It doesn't turn back on when you pick it up or take it out of your pocket though, you have to hit the suspend button for that. I'd reccomend checking it out.
Oh ya it also does screen rotation via the G-sensor.

trevoroni said:
Changescreen has an option under the advanced settings to suspend the phone when it's placed face down or in your pocket (as long as its put in your pocket upside down). It doesn't turn back on when you pick it up or take it out of your pocket though, you have to hit the suspend button for that. I'd reccomend checking it out.
Oh ya it also does screen rotation via the G-sensor.
Click to expand...
Click to collapse
I'm not sure if Changescreen actually uses the proximity sensor. It will shut off the screen even if you turn it upside down in the air. And I have found on numerous occasions that it still leaves the screen on in your pocket, which is too bad because it's handy to have.

Try PocketShield. It will automatically shut the screen off when put in your pocket or case. There is a free and paid version.

t0mmyr said:
i was wondering if theres some way to change the sensitivity or distance of the proximity sensor, i notice when my wife was using the phone the screen would turn on and off randomly i guess because of the way she was holding it to her ear, then i started noticing through the corner of my eye that my phone was doing this as well, it must think i've pulled it away from my ear when it senses different cavities in my ear, i'd like to turn it up to an extra 1/2" or so when i do hold the phone to my ear i know for certain it stays off, and when i really do pull it away from my head the screen wakes up. has anyone found the settings for this yet? i'm running juicy rom and my wife has mightyrom
Click to expand...
Click to collapse
I'm with t0mmyr on this issue.
I too find that when having been on a call, my screen can end up with started apps, on the programs page, etc.
I too think that a 'tweak' on the proximity sensor will go a long way to fixing this issue. The trick is to find exactly what to tweak and this is where we need a little guru-like guidence.......!!!
Cheers
Jabberoo

theres a few interesting keys in hklm\software\htc\proximity. i wont mess with them. i wouldnt like the screen to turn on every time i pick my phone off a table or something.

The Jack of Clubs said:
theres a few interesting keys in hklm\software\htc\proximity. i wont mess with them. i wouldnt like the screen to turn on every time i pick my phone off a table or something.
Click to expand...
Click to collapse
Thx for the heads-up
I looked into them but with no result.
There must surely be a way to 'fiddle' with the range..?
Cheers
Jabberoo

i dont think there is a boost on range. i think the emitter intensity is fixed and would require hardware tinkering to make reflections on object brighter for the receiving sensor.

trevoroni said:
Changescreen has an option under the advanced settings ....
Click to expand...
Click to collapse
Actually I played with it a little and realized that it does in fact use the proximty sensor and g sensor. It just seems to bug up some times (or it just might be my device)

Not just yours mine does this as well. I make sure I don't move the phone away from my ear at all but if it is a long call it always seems that either the notification bar or the start button got pressed during the call. It is driving me nuts. I had a program written by someone on XDA for my Fuze that worked awesome called touch in-call screen tweak I want that functionality with the tilt 2

dalavar said:
Not just yours mine does this as well. I make sure I don't move the phone away from my ear at all but if it is a long call it always seems that either the notification bar or the start button got pressed during the call. It is driving me nuts. I had a program written by someone on XDA for my Fuze that worked awesome called touch in-call screen tweak I want that functionality with the tilt 2
Click to expand...
Click to collapse
TouchLockPro has InCallTweak built in. See youtube video in the link. And recently also has added ZoomBar unlock. And it is *FREE*

Need help on disable proximity sensor TP2

Hi
how can i disable the proximity sensor on my HTC Touch Pro 2, windows mobile 6.1 ?
I use a screen lock app that dims the screen during calls but when coming near proximity sensor during call, the screen is turned on again - a real pain.
Please if any onw have an advice to shut it off cpmpletely or when i am on bluetooth i would be really happy for some help
PS i thought paroximitysensor was supposed to disable when tp2 is connected to bluetooth - but its not ??
thanks
Nolan

no one ?
regards nolan

having the exact same issue. I found a cab called TurnOffTheLight but haven't had a chance to try it yet.
For me, it would be better if the proximity sensor was off permanently, if possible.

thisisallen said:
having the exact same issue. I found a cab called TurnOffTheLight but haven't had a chance to try it yet.
For me, it would be better if the proximity sensor was off permanently, if possible.
Click to expand...
Click to collapse
Hi
could you test teh cab and tell us here if that can turn of permanemtly the proximity sensor ?
regards Nolan

TurnOffTheLight works to turn off the backlighting but as soon as you move the phone the proximity sensor kicks in again.

in the app called Advanced Config there is a category for adjusting the threshold of the Light Sensor. Unfortunately I have no idea how to adjust it (it is at 0 now) and/or if adjusting this would affect the proximity sensor. Can someone comment on this?

thisisallen said:
in the app called Advanced Config there is a category for adjusting the threshold of the Light Sensor. Unfortunately I have no idea how to adjust it (it is at 0 now) and/or if adjusting this would affect the proximity sensor. Can someone comment on this?
Click to expand...
Click to collapse
Hi
light functionality would not solve the problem regarding proximity sensor - its 2 different matters unfortunately
regards Nolan

i have allmost the same problem. my sensor is broken and alwayas is "On". so when i make a call on my hd2 android 2.2 screen goes off and never goes on again. how to kill it???

Called today helpdesk with same problem, cant be turned off , must go for a repair.

Proximity Sensor behavior and solution
I am a late comer to this bb! Hey,I thought all the bugs would be worked out by now! My keyboard did not work right, .... and I have had several other problems with the touchpro2. What are the Chinese doing over there? I had programmed many embedded units and microprocessor systems, but, really, how can they mass produce units like these? Too many cooks in the soup? They are leaving their quality control to the general community.
My problem was I use my gps for bicycling, and if I place it in the support case, the proximity sensor would shut off the screen, even though I was not placing a call. The screen would blank and not come back on. I noticed there was no problem if the physical keyboard was opened and also if the unit were held horizontally. It did this all the time, regardless of the app running.
There are two sensors at the top of the unit: proximity sensor and light sensor. This is a problem with the proximity sensor, at the left.
So I just placed duct tape over it. Now it does not blank.

Face Recognition App

Do you think someone will make an app that will detect your face and unlock the phone now that we have a front facing camera. Also what is the motion sensor used for?

That'd be awesome
Do you think someone will make an app that will detect your face and unlock the phone now that we have a front facing camera. Also what is the motion sensor used for?
Click to expand...
Click to collapse
-------------------------------------
Sent via the XDA Tapatalk App

Hope I am posting this correctly,
Saw this a few months ago
http://onlygizmos.com/recognizr-app-brings-face-detection-to-android/2010/02/

ferfy67 said:
Hope I am posting this correctly,
Saw this a few months ago
http://onlygizmos.com/recognizr-app-brings-face-detection-to-android/2010/02/
Click to expand...
Click to collapse
Sweet. Hopefully it's hacked with front camera access and the ability to enable it by holding the volume rocker to do the scan. Hopefully you don't wake up one day looking really ugly.

Lots to hope for LOL
It would be nice to have the camera key on the side though. There already a couple of face "detection" apps out there, not recognition though. Photofunia, in market, takes face and puts in various backrounds, works well

gqstatus0685 said:
Do you think someone will make an app that will detect your face and unlock the phone now that we have a front facing camera. Also what is the motion sensor used for?
Click to expand...
Click to collapse
One example of the motion sensor is that when someone calls you, the Evo quiets the ringtone when it detects you've moved your phone with the intent to pick up the call.

It's actually a proximity sensor, used to turn the screen off when it's held close to your face. The feature of the ringer quieting on pickup uses the accelerometer.

So what does the motion sensor do?

keishou said:
It's actually a proximity sensor, used to turn the screen off when it's held close to your face. The feature of the ringer quieting on pickup uses the accelerometer.
Click to expand...
Click to collapse
I think he means "accelerometer" when he says "motion sensor"

NOPE
keishou said:
It's actually a proximity sensor, used to turn the screen off when it's held close to your face. The feature of the ringer quieting on pickup uses the accelerometer.
Click to expand...
Click to collapse
The Light sensor via front of HD2 disables touchscreen of device when held close to face! The motion sensor is used for screen rotate and other apps that work well with phone positioning commands!

djellenar said:
The Light sensor via front of HD2 disables touchscreen of device when held close to face! The motion sensor is used for screen rotate and other apps that work well with phone positioning commands!
Click to expand...
Click to collapse
The light sensor has nothing to do with disabling the touch screen. Its used to change the auto brightness of the display. The screen shuts off when on the phone because its turned upright.
Well that's how it works on the evo. So I would think the same for hd2 that u mentioned in a evo thread...

It is turned off via proximity sensor not accelerometer

063_XOBX said:
It is turned off via proximity sensor not accelerometer
Click to expand...
Click to collapse
Ahh, but u can hold the phone next to u and the screen won't come on till u tilt the phone horizontal...anyway its not the light sensor...And yes a face recog app would be very cool to have...

People, people! Please!
1) Accelerometer: Used to detect changes in movement. Used primarily in Android for apps such as Bump, or to rotate the screen, or games such as Teeter and racing simulators (tilt phone like you're turning the steering wheel, etc.) Also known as the motion sensor.
2) Light sensor: Used to detect ambient light so that when the phone's brightness is set to automatic, it knows to increase or decrease the brightness of the screen appropriately.
3) Proximity sensor: Used to detect if something is near the speaker and of the phone. Mainly it is used to turn off the screen and touch input when it detects something near its front, and a call is in progress (aka, detects the side of your head near it, so your cheek doesn't accidentally push any buttons).
As for the facial recognition, yes, that would be nice, but what happens when you get a haircut? Put on glasses? Have a zit? Get a black eye? Swollen lip? Sunburn? Grow/shave a beard/mustache/etc.? That's the problem with these kinds of software, and why all computers that have facial recognition will always have a password or some other kind of backup authentication.
Questions?

drmacinyasha said:
People, people! Please!
1) Accelerometer: Used to detect changes in movement. Used primarily in Android for apps such as Bump, or to rotate the screen, or games such as Teeter and racing simulators (tilt phone like you're turning the steering wheel, etc.) Also known as the motion sensor.
2) Light sensor: Used to detect ambient light so that when the phone's brightness is set to automatic, it knows to increase or decrease the brightness of the screen appropriately.
3) Proximity sensor: Used to detect if something is near the speaker and of the phone. Mainly it is used to turn off the screen and touch input when it detects something near its front, and a call is in progress (aka, detects the side of your head near it, so your cheek doesn't accidentally push any buttons).
As for the facial recognition, yes, that would be nice, but what happens when you get a haircut? Put on glasses? Have a zit? Get a black eye? Swollen lip? Sunburn? Grow/shave a beard/mustache/etc.? That's the problem with these kinds of software, and why all computers that have facial recognition will always have a password or some other kind of backup authentication.
Questions?
Click to expand...
Click to collapse
Nope! You posted a very good explanation! Cheers to you!

drmacinyasha said:
People, people! Please!
1) Accelerometer: Used to detect changes in movement. Used primarily in Android for apps such as Bump, or to rotate the screen, or games such as Teeter and racing simulators (tilt phone like you're turning the steering wheel, etc.) Also known as the motion sensor.
2) Light sensor: Used to detect ambient light so that when the phone's brightness is set to automatic, it knows to increase or decrease the brightness of the screen appropriately.
3) Proximity sensor: Used to detect if something is near the speaker and of the phone. Mainly it is used to turn off the screen and touch input when it detects something near its front, and a call is in progress (aka, detects the side of your head near it, so your cheek doesn't accidentally push any buttons).
As for the facial recognition, yes, that would be nice, but what happens when you get a haircut? Put on glasses? Have a zit? Get a black eye? Swollen lip? Sunburn? Grow/shave a beard/mustache/etc.? That's the problem with these kinds of software, and why all computers that have facial recognition will always have a password or some other kind of backup authentication.
Questions?
Click to expand...
Click to collapse
no... asus laptops have the face recognition systems and it works GReAT!!! no problems whatsoever... but thats b/c u can put sooo many pictures and set the sensitivity of the security on the camera... its pretty sweet

tauzins said:
no... asus laptops have the face recognition systems and it works GReAT!!! no problems whatsoever... but thats b/c u can put sooo many pictures and set the sensitivity of the security on the camera... its pretty sweet
Click to expand...
Click to collapse
It's also a laptop and you still have the password login as a backup. Believe me, I used to cell them and had to reset the password every other day because bratty little kids came in and thought they were smart and tough by setting the camera login to themselves making some disgusting face, and the password to "toughguy" or "password".

Wow!!!!!!
is this app out yet? Couldnt find it on the market..
ferfy67 said:
Hope I a posting this correctly,
Saw this a few months ago
http://onlygizmos.com/recognizr-app-brings-face-detection-to-android/2010/02/
Click to expand...
Click to collapse
*This was posted from my Evo 4G using Tapatalkpro! Great app, if you want to browse and post through many dfferent forums*

Would be pretty great!
Lol at the misinformation, thanks for clearing that up for our slower folk.
This is definitely gonna happen sooner or later.
It would need a backup method of course but if made properly it would be more general and little things wouldn't change the outcome.
I was thinking this...
You take 3 pictures the first time you open the app.
It merges them, aligns the face and sets a gaussian blur to smooth and remove imperfections.
Then it cuts out things like hair and eyebrows leaving behind the static parts of your face such as eye shape, nose, mouth, jawline and cheekbones.
It basically takes the 3 specific pictures of your face, and generalizes them, while keeping them relatable to every future pic.
I think its called interpolation, which gives you the perfect identifier, ultimately being used to recognize you.
Of course a setting would be needed to change how similar the face needs to be before being granted access but theres no reason it wouldn't work.
My other going thought is an app that learns as you go but it won't work as well.

nope again!
sprink0281 said:
Nope! You posted a very good explanation! Cheers to you!
Click to expand...
Click to collapse
iTS AN OK thought of how it works but my HD2 can be of any position even flat down and as long as I am in a call and i put my finger over the light sensor (same as face, ear being close to sensor not letting hardly any light get to it)
the screen disables! I think many of you may not have the HD2 if ya didn't know that, don't let internet chat and gossip get in the way of the truth, truth is within the device when holding it, not hear-say. Also why would the accelerometer have anything to do with disabling screen when in an upright position? If one was to lay down in bed chatting on fone, my HD2 would un-disable screen... Try an app called mToolbox, it emulates what light sensor and motion sensor can be used for. I would say, light sensor can be more useful in many more apps than motion, motion works great with changing screen from portrait to landscape and movement in games.. An app to control ps3 via bluetooth using HD2's accelerometer feature would be useful, but for now, i have tweaked it to off, I have many older WinMo's and find using the screen orientation key much more faster and when i need it, it gets annoying when the screen changes at unwanted times and no matter how you calibrate any accelerometer, there are flaws to it depending on what situation one is in when holding the device (fone must be upright again to go back to portrait if fone was laying down) sorry for the long babble but I'm certain that the light sensor own's the screen shut-off feature on the HD2 for sure.. Quote me again any time!