Register Guidelines E-Books Search Today's Posts Mark Forums Read

Go Back   MobileRead Forums > E-Book Readers > Android Devices > Spring Design Alex

Notices

Reply
 
Thread Tools Search this Thread
Old 08-10-2013, 06:27 PM   #1
Lomedin
Misanthrope
Lomedin with a running start, can leap into geosynchronous orbitLomedin with a running start, can leap into geosynchronous orbitLomedin with a running start, can leap into geosynchronous orbitLomedin with a running start, can leap into geosynchronous orbitLomedin with a running start, can leap into geosynchronous orbitLomedin with a running start, can leap into geosynchronous orbitLomedin with a running start, can leap into geosynchronous orbitLomedin with a running start, can leap into geosynchronous orbitLomedin with a running start, can leap into geosynchronous orbitLomedin with a running start, can leap into geosynchronous orbitLomedin with a running start, can leap into geosynchronous orbit
 
Lomedin's Avatar
 
Posts: 22
Karma: 60347
Join Date: Aug 2013
Location: Under your bed
Device: Spring Design 6.S Alex DSB-10
Arrow e-ink energy consumption

Hi,
Apparently, an eReader with eInk displaying a page will not consume much energy (if any?) unless you turn to another page.
If this is correct, why switching off the device at all?
It´s a doubt a got, any ideas welcomed.
Lomedin is offline   Reply With Quote
Old 08-10-2013, 11:21 PM   #2
Barcey
Wizard
Barcey ought to be getting tired of karma fortunes by now.Barcey ought to be getting tired of karma fortunes by now.Barcey ought to be getting tired of karma fortunes by now.Barcey ought to be getting tired of karma fortunes by now.Barcey ought to be getting tired of karma fortunes by now.Barcey ought to be getting tired of karma fortunes by now.Barcey ought to be getting tired of karma fortunes by now.Barcey ought to be getting tired of karma fortunes by now.Barcey ought to be getting tired of karma fortunes by now.Barcey ought to be getting tired of karma fortunes by now.Barcey ought to be getting tired of karma fortunes by now.
 
Barcey's Avatar
 
Posts: 1,531
Karma: 8059866
Join Date: Oct 2007
Location: Canada
Device: Kobo H2O / Aura HD / Glo / iPad3
The e-ink display doesn't consume any energy until you turn the page but the rest of the components do. The CPU and memory are still consuming power and there has to be circuitry checking for page turns. Most devices can go into sleep mode which puts the rest of the components into a low power state without shutting the device completely off. It's confusing if you're not used to it because when the battery fails completely there is still text on the display.
Barcey is offline   Reply With Quote
Old 08-11-2013, 02:58 PM   #3
soulfuldog
I ♥ Calibre
soulfuldog ought to be getting tired of karma fortunes by now.soulfuldog ought to be getting tired of karma fortunes by now.soulfuldog ought to be getting tired of karma fortunes by now.soulfuldog ought to be getting tired of karma fortunes by now.soulfuldog ought to be getting tired of karma fortunes by now.soulfuldog ought to be getting tired of karma fortunes by now.soulfuldog ought to be getting tired of karma fortunes by now.soulfuldog ought to be getting tired of karma fortunes by now.soulfuldog ought to be getting tired of karma fortunes by now.soulfuldog ought to be getting tired of karma fortunes by now.soulfuldog ought to be getting tired of karma fortunes by now.
 
soulfuldog's Avatar
 
Posts: 2,073
Karma: 5678911
Join Date: Aug 2011
Location: UK
Device: Kindle Oasis, Voyage, Sony PRS-350, Hudl2
That is correct, and also the power usage in sleep mode can be fairly minimal, which is why the battery lasts so long. In the case of the Kindle, the on/off button doesn't actually switch the Kindle off, but puts it into sleep mode (although the manual just keeps it simple by telling you it is off ). The only time it is actually off is when you reboot it.

You can think of it as a standard sleep and a deep sleep (standard sleep still displays the screensaver, press the power button for a little longer to put it into deep sleep and the screen is blank). It's not fully switched off as when you press the power button to turn it back on, it loads instantly and you don't have to wait for it to boot up.
soulfuldog is offline   Reply With Quote
Old 08-11-2013, 07:11 PM   #4
Lomedin
Misanthrope
Lomedin with a running start, can leap into geosynchronous orbitLomedin with a running start, can leap into geosynchronous orbitLomedin with a running start, can leap into geosynchronous orbitLomedin with a running start, can leap into geosynchronous orbitLomedin with a running start, can leap into geosynchronous orbitLomedin with a running start, can leap into geosynchronous orbitLomedin with a running start, can leap into geosynchronous orbitLomedin with a running start, can leap into geosynchronous orbitLomedin with a running start, can leap into geosynchronous orbitLomedin with a running start, can leap into geosynchronous orbitLomedin with a running start, can leap into geosynchronous orbit
 
Lomedin's Avatar
 
Posts: 22
Karma: 60347
Join Date: Aug 2013
Location: Under your bed
Device: Spring Design 6.S Alex DSB-10
Thank you both for your attention.

It does make perfectly sense the way something needs to be running in the background in order to check what the status of the device is at any given moment.

Now I will have to inform myself better regarding how the mysterious e-Ink works =) [love that "when the battery fails completely there is still text on the display" sentence"]
Lomedin is offline   Reply With Quote
Old 06-09-2014, 10:45 AM   #5
ApK
Award-Winning Participant
ApK ought to be getting tired of karma fortunes by now.ApK ought to be getting tired of karma fortunes by now.ApK ought to be getting tired of karma fortunes by now.ApK ought to be getting tired of karma fortunes by now.ApK ought to be getting tired of karma fortunes by now.ApK ought to be getting tired of karma fortunes by now.ApK ought to be getting tired of karma fortunes by now.ApK ought to be getting tired of karma fortunes by now.ApK ought to be getting tired of karma fortunes by now.ApK ought to be getting tired of karma fortunes by now.ApK ought to be getting tired of karma fortunes by now.
 
Posts: 7,310
Karma: 67564074
Join Date: Feb 2010
Location: NJ, USA
Device: Kindle
Quote:
Originally Posted by Lomedin View Post
Now I will have to inform myself better regarding how the mysterious e-Ink works =)
http://en.wikipedia.org/wiki/Electronic_paper

Oops...didn't notice how old the thread was!

Last edited by ApK; 06-09-2014 at 10:47 AM. Reason: Accidental necropost...
ApK is offline   Reply With Quote
Old 06-09-2014, 10:49 AM   #6
HarryT
eBook Enthusiast
HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.
 
HarryT's Avatar
 
Posts: 85,544
Karma: 93383043
Join Date: Nov 2006
Location: UK
Device: Kindle Oasis 2, iPad Pro 10.5", iPhone 6
Do you really think that a person who hasn't logged into MR since last August still actually cares?
HarryT is offline   Reply With Quote
Reply

Tags
eink, energy

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
PRS-600 e-Ink Power Consumption bakura82 Sony Reader 12 03-01-2010 10:19 PM
Energy consumption of Cybook Gen 3 Kaero Bookeen 74 02-18-2010 03:36 AM
At Last: *Front-Lit* E-Ink, Flexible E-Ink and ... E-Ink Watches! NatCh News 1 10-27-2007 10:50 AM
Battery consumption ali iRex 19 09-04-2006 03:09 PM


All times are GMT -4. The time now is 02:45 PM.


MobileRead.com is a privately owned, operated and funded community.