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Old 04-23-2014, 04:41 AM   #4
knc1
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Join Date: Feb 2012
Location: Central Texas
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Quote:
Originally Posted by Huku View Post
Hi screaminglemon,
did you find a solution to your problem? My situation is similar. Was on a sony reader few years ago and still cannot get used to the missing clock in kindle.
The Grayscale Kindles are designed to take maximum advantage of the meta-stable, e-ink display.
(Remove screen from device, screen continues to show the last display for years without power.)

The device only uses power (and the cpu runs) when changing the display (such as at "page turn").
That is how they get the weeks or months of use on a single battery charge - mostly, they are "off".

Keeping a clock updated in step with something close to "real time" would require waking the sleeping electronics that often and re-drawing the display (a power hungry operation).

This reduces your run time on a single battery charge from weeks to hours.
Possible, but not really practical for this device.
Use a device designed to tell the current time - like a wristwatch or clock.

Now if your reason for having a clock display is a single time, say;
three hours from now you must do something else than read,
that can be done with the help of the on-board, low power, hardware.
It would display the reaching that time by re-drawing the screen **once** at the end of the period.
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