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

Go Back   MobileRead Forums > E-Book Readers > More E-Book Readers > iRex

Notices

Reply
 
Thread Tools Search this Thread
Old 10-09-2008, 02:31 PM   #1
wallcraft
reader
wallcraft ought to be getting tired of karma fortunes by now.wallcraft ought to be getting tired of karma fortunes by now.wallcraft ought to be getting tired of karma fortunes by now.wallcraft ought to be getting tired of karma fortunes by now.wallcraft ought to be getting tired of karma fortunes by now.wallcraft ought to be getting tired of karma fortunes by now.wallcraft ought to be getting tired of karma fortunes by now.wallcraft ought to be getting tired of karma fortunes by now.wallcraft ought to be getting tired of karma fortunes by now.wallcraft ought to be getting tired of karma fortunes by now.wallcraft ought to be getting tired of karma fortunes by now.
 
wallcraft's Avatar
 
Posts: 6,979
Karma: 5183568
Join Date: Mar 2006
Location: Mississippi, USA
Device: Kindle 3 and Fire
Faster Refresh

From Karel (iRex Community Manager) here:
Quote:
The speed of a page refresh depends on a number of factors, to name a few: the type of content, the processor, the speed of data transfer, the limitations of the electronic ink, etc...

To give you an idea: in general with the iLiad it takes about 500 ms to transfer the image data or a regular page to the display and another 800 ms to refresh the screen. With the iRex 1000 we managed to reduce the transfer speed to 50 ms for an even larger display. The refresh rate of electronic ink is still 800 ms (based on Vizplex material).

So in theory the refresh rate improved from approx 1300 ms with the iRex iLiad to 850 ms with the iRex 1000.

These are not exact figures, but should give a good indication of the actual performance improvement.
I have updated the E-book Reader Matrix with these values. All the other refresh rates in the wiki seem to be about 0.9s, and this is consistent with what EInk said a year ago (NEW VIZPLEX IMAGING FILM IS BRIGHTER AND FASTER) if their controllers don't add much overhead:
Quote:
Typical Switch Speed Previous Generation Imaging Film 1200 ms
Typical Switch Speed Vizplex Imaging Film 740 ms
wallcraft is offline   Reply With Quote
Old 10-10-2008, 04:33 AM   #2
Charbax
Addict
Charbax ought to be getting tired of karma fortunes by now.Charbax ought to be getting tired of karma fortunes by now.Charbax ought to be getting tired of karma fortunes by now.Charbax ought to be getting tired of karma fortunes by now.Charbax ought to be getting tired of karma fortunes by now.Charbax ought to be getting tired of karma fortunes by now.Charbax ought to be getting tired of karma fortunes by now.Charbax ought to be getting tired of karma fortunes by now.Charbax ought to be getting tired of karma fortunes by now.Charbax ought to be getting tired of karma fortunes by now.Charbax ought to be getting tired of karma fortunes by now.
 
Posts: 200
Karma: 543543
Join Date: Mar 2007
Does it pre-render next page correctly into some type of fast access memory as it should to optimize the time required to go to the next page?
Charbax is offline   Reply With Quote
 
Enthusiast
Old 10-11-2008, 07:16 PM   #3
ericshliao
Guru
ericshliao will become famous soon enoughericshliao will become famous soon enoughericshliao will become famous soon enoughericshliao will become famous soon enoughericshliao will become famous soon enoughericshliao will become famous soon enough
 
Posts: 973
Karma: 687
Join Date: Nov 2007
Device: Dell X51v; iLiad v2
Improved from 1300 ms to 850 ms? About 35% improvement. Looking at the figure will make me think it's quite an improvement. But I still wonder if users will notice a 450ms faster improvement when they are using DR1000.
ericshliao is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Faster or Slower? Andrew Kaufman General Discussions 18 07-23-2010 07:10 PM
New battery -> faster response?!? dcalder Bookeen 4 01-09-2009 12:53 AM
Two Kindles: one faster than the other? WilliamG Amazon Kindle 7 09-16-2008 04:19 PM


All times are GMT -4. The time now is 12:17 AM.


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