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On 2012-10-21 21:49:18, etaab wrote:
@ cu015170 - i was referring to the actual camera hardware rather than the software of the device using it.
I was trying to say that to control that hardware properly, you need an RTOS.. which is what symbian is.
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Posted: 2012-10-22 04:46:06
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Im sure Windows Phone is quite capable of implementing all the functionality of the 808 given time. The OS is younger and wont support as much now but will in future.
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Posted: 2012-10-22 22:18:02
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On 2012-10-22 22:18:02, etaab wrote:
Im sure Windows Phone is quite capable of implementing all the functionality of the 808 given time. The OS is younger and wont support as much now but will in future.
This is going to go way off topic, but..
So here is what I've gathered as far information on the subject.
Currently, there is no SoC (system on a chip) that can handle more than 20Mpix, therefore Nokia had to implement an additional processing chip that is built into the camera module, and that way the processing load is spilt between the main GPU and the secondary unit. The main GPU and the companion chip need to be perfectly synchronized, so that all the oversampling and the other software tricks work properly. For that to happen, you either need an RTOS:
http://en.wikipedia.org/wiki/Real-time_operating_system / or a very, very low latency Monolithic kernel:
http://en.wikipedia.org/wiki/Monolithic_kernel
Android, iOS, and Windows Phone are all monolithic, Symbian is RTOS.
So, as far as I can tell, there are four options here:
1. They wait until there is a chip set powerful enough to handle the processing load coming from the camera module in the 808, and that way they bypass all the sync issues.
2. They create a secondary (very primitive) OS that handles the camera system separately, and runs under the main OS.
3. They bring down the megapixel count to 20Mpix, and don't perform any oversampling so that the system can handle the load.. and compensate with physically larger pixels.
4. They somehow manage to bring the latency in Windows Phone low enough, to where there are no sync issues.
There is also the question of Xenon, which requires a mechanical shutter.. more sync issues.
This is my own summery. Now.. if it was that easy, like a said before, there would be a PureView PRO Lumia already.
[ This Message was edited by: cu015170 on 2012-10-22 22:23 ]
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Posted: 2012-10-22 23:17:39
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On 2012-10-21 09:22:25, cu015170 wrote:
Actually, most of the tech in the 808 is kind of tied to a real-time kernel (RTOS), which is what Symbian is.
Symbian ... never was, never has been, and never WILL be a RTOS! Not in S60, UIQ, or that forgotten Japanese/Chinese version.
QNX is a REAL-TIME-Operating System as its CORE Kernel component.
You cannot separate the radio stack for WiFi independently from cellular networking, you cannot separate power management independantly of the power on/off control, nor can you independently control Speaker sound from music playback, from the cellular call, nor from the VOIP call done over wifi.
Find me proof specifically where Symbian is listed as a registered RTOS, please.
http://www.arm.com/community/[....]real-time-operating-system.php
Symbian is a SMP; a symetric multi-processing OS, but it is NOT an RTOS.
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Posted: 2012-10-23 02:45:26
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Maybe it isn't.. I am just going by what I've read in the following sources:
http://www.developer.nokia.co[....]iki/EPOC_Kernel_Architecture_2
http://www.developer.nokia.co[....]Internals/01._Introducing_EKA2
"This book was written to provide a detailed exposition on the new
real-time kernel, providing the reader with the insights of the software engineers who designed and wrote it."
http://www.amazon.com/Symbian[....]8-1&keywords=symbian+real+time
Maybe I am confusing Real Time OS with a Real Time kernel, but either way, its better suited for the PureView PRO system found in the 808 than any of the other 3 OS systems I mentioned.
[ This Message was edited by: cu015170 on 2012-10-23 03:32 ]
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Posted: 2012-10-23 04:25:53
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On 2012-10-22 23:17:39, cu015170 wrote:
1. They wait until there is a chip set powerful enough to handle the processing load coming from the camera module in the 808, and that way they bypass all the sync issues.
You're right its going way off topic, so my last comment would be that i think your first point would be the most likely, and the most possible at this point in time.
I dont think its out of Nokia's expertise to develop with their chip makers such custom SOC components for that purpose. If the iPhone 5 can have its own custom chips made for its cpu from existing technology im sure Nokia could do the same for their WP Pureview phones ??
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Posted: 2012-10-23 22:04:09
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Has anyone on here got the black one? How bad is the whole scuffgate thing? Prefer the black over the white but the whole scuffgate thing is making me think white
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Posted: 2012-10-28 19:01:48
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well,the iphone5 finally come in September,I really love this phone,especially the 4.0 inches screen and A6 processor,it will makes the playing games experiences more amazing,I really love it,I am lucky I donot buy the iphone 4S last year,now I really want the iphone5.
[ This Message was edited by: McBride on 2012-10-29 08:01 ]
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Posted: 2012-10-29 08:56:35
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iPhone 5 is Old news now lets jump aside to the 5S launched under a years time
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Posted: 2012-11-01 01:32:13
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@ dizzybee - I have the black one, and the first day scuffed the metal around the screen and i haven't even dropped it yet. So i have immediately put a cover on it. But i have seen some black iPhone 5's that now have a silver band around it, quite unsightly. Go for the white.
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Posted: 2012-11-03 19:05:58
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