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For the uses you suggest for the camera a stationary one ala PSeye or kinect works better i think. Plus it could save cost to Nintendo and the consumer cause you are not packing 1 camera per controller like with the Wii.Yeah. That's not gonna be achieved with a camera tracking the fingers, unless the camera is slap-bang in the middle of the screen! Or if it can be angled inwards. But I don't see the value of that, and my expectation is that, if the controller has a camera, it'll be a basic player-watching webcam, for things like face-tracking.
What sort of wireless technology will be used to transmit video to and from the controllers?
The value of doing something like in the youtube video would be direct pointing without looking at the touch screen while also allowing ample touch interactions like poke, drag, swipe, etc. But you do make sense, doing the finger tracking that close with a camera could be problematic. There are screens that track finger position with IR beams for example.
If sending the video to the touch screen is possible the WHDI standard seems to fit the bill. Sends uncompressed video independent of line of sight. The touch screen wouldn't transmit video, it just acts a receiver, the inputs made to the screen will travel in the same radio standards the controller use.
Asus Wicast claims uncompressed 1080p @ 60HZ with <1 ms lag, and the transmitters/receivers are usb powered.
Edit: Additional Explanation. The paddle being controlled with the hand hovering over the Ezpad would be the reticule on your TV. When located at the point of the TV screen the interaction is wanted, the user poke or drags the finger on the touch screen. So in a sense you are preserving the touch screens typical interactions while retaining pointing capabilities without direct line of sight for the touch screen.
If used as a trackpad, then the only interaction you could execute with the touch is moving the reticule.
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