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| 00:22.12 | *** topic/#maemo is Welcome to #maemo http://maemo.org/intro/ | N9/harmattan related questions please in #harmattan ! | "firmware" see ~lf (or ~tabletsdev ~combined ~emmc ~flasher) sdk: ~sb | http://wiki.maemo.org/Community_Council | Source: http://wiki.maemo.org/Sources | Chanlog: http://mg.pov.lt/maemo-irclog | #maemo-ssu is where the (few) devels and maintainers of the maemo-future meet |
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| 00:35.32 | mike727 | "Backscatter" used for power efficient 'video streaming': http://www.newswise.com/doescience/?article_id=693080 |
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| 05:18.02 | Vajb | hmm I am not sure if I like the idea of HD cameras everywhere. No matter how much electricty they use. |
| 05:18.42 | Vajb | but nice acheivement from them. |
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| 05:51.46 | buZz | you rather want them to be 4K? |
| 05:52.57 | buZz | lol 'battery-free streaming' |
| 05:53.05 | Vajb | think I'll wait 'till it's 32K ;) |
| 05:53.25 | buZz | its battery-free, by depending on batteries |
| 05:53.26 | buZz | derp |
| 05:54.17 | Vajb | if it were powersourceless, that would be something |
| 05:54.55 | buZz | i dont understand why they replaced 'transmit' with 'backscattters' |
| 05:55.37 | Vajb | Im not familiar with either |
| 05:55.39 | buZz | > In physics, backscatter (or backscattering) is the reflection of waves, particles, or signals back to the direction from which they came. |
| 05:55.43 | buZz | they are not doing that |
| 05:56.31 | Vajb | then it doesn't sound correct term |
| 05:57.59 | buZz | ah, they call it backscatter, because they send a radio signal pure for power transmission to power transmitting something back |
| 05:58.06 | buZz | so it kinda looks like backscatter |
| 05:59.21 | buZz | 16 feet distance powered a batteryless camera enough from a 'cellphone' for a 10fps 480p video |
| 06:00.10 | buZz | oh, also 8bit grayscale instead of color |
| 06:01.55 | buZz | wow at even lower res they get even more impressive, 13fps 112x112 at 150 feet O_o |
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| 09:12.52 | Vajb | ah it uses same technic as that batteryless "mobilephone". Draws power from radiosignal. |
| 09:13.32 | Vajb | i put it in quotes since it is just a cirquitboard atm. |
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| 10:19.25 | Maxdamantus | Pretty sure it'll use a lot more power. |
| 10:20.28 | Maxdamantus | and I'm not really sure what the use case of a wireless security camera (which needs to have another device to communicate with, probably in plain sight) is. |
| 10:24.07 | Maxdamantus | on the surface, it at least seems a lot more advanced than the last article I saw about backscatter technology. |
| 10:24.46 | Maxdamantus | which was described as something like "powerless WiFi" using "backscatter techniques involving electromagnetic radiation" |
| 10:25.34 | Maxdamantus | translation: using a camera to determine how an object is currently reflecting light |
| 10:26.31 | Maxdamantus | (or rather, a radio, but easier to visualise what sort of information is being transmitted if you just remember that cameras also capture electromagnetic radiation) |
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| 11:03.14 | sixwheeledbeast | in an industry that is driven by increasing pixel density to reduce cost, I fail to see where 13fps 112res will fit. |
| 11:04.37 | sixwheeledbeast | PoE has made these systems PnP with relatively small cost upto 100m |
| 11:18.56 | bencoh | Yeah, but PoE seems kinda ... simpler :) |
| 11:19.03 | bencoh | Or at least easier to achieve :) |
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| 22:09.16 | *** topic/#maemo is Welcome to #maemo http://maemo.org/intro/ | N9/harmattan related questions please in #harmattan ! | "firmware" see ~lf (or ~tabletsdev ~combined ~emmc ~flasher) sdk: ~sb | http://wiki.maemo.org/Community_Council | Source: http://wiki.maemo.org/Sources | Chanlog: http://mg.pov.lt/maemo-irclog | #maemo-ssu is where the (few) devels and maintainers of the maemo-future meet |
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