3 ms·
> The devices use nearly as much power turned off as they do when they are turned on. Well, the whole point of a DVR is that it does things when you're not th
by imgabe 12y ago
> The devices use nearly as much power turned off as they do when they are turned on.
Well, the whole point of a DVR is that it does things when you're not there. If you want it to record shows after you've turned it "off", then it can't really be "off" can it?
- mschuster91 12y agoIt can, just program a RTC to raise an interrupt on a specified wake time and the OS shuts down the CPU once recording is done.
- vegedor 12y agowell, don't forget to send the cpu to sleep before waiting for the interrupt as well
- HeyLaughingBoy 12y agoNo, it can't be off, but good design would have it drawing a tiny fraction of the "on" current while on standby. Evidently power consumption wasn't one of the important design requirements.
- cardiffspaceman 12y agoEPG (electronic program guide) aquisition can work using low-bandwidth methods if the box can stay on all the time. This low-bandwidth method could be a broadcast to all boxes constantly. So if your goal is a two-week EPG the box has to stay on for quite a while until it has seen all two weeks' data, and to process that you need to store it on the HDD. Such a box is going to be running close to its normal power requirement while doing these things.