lance@uunet.UU.NET (09/20/90)
ron@vicorp.com (Ron Peterson) writes: > > > It just occured to me that perhaps the ultrasonics from a > PowerGlove could be removed and used to read the position and > orientation of a set of lcd tv or shutter goggles. I would not want to use ultrasonics for this. Instead, I would set up 2 or 3 slow infrared signals at different speeds in different places in the room. At any one place you should get a unique beat frequency that you can easily decipher into a 3-space coordinate. I don't know how to read the position. On this subject, though, Radio Shack carries an infrared transmitter/receiver (or a pair, I've forgotten and it was only yesterday) for <$4. It operates at 40khz. You get a binary signal out of it at 5Vdc. I don't know what actual bandwidth you get, so it's probably not useful for my pet project of multiple walkaround phones. But you should be able to get 30hz or 60hz out of it, so you could use it to broadcast the left-right signal to any number of people watching a synched stereo screen via goggles. Lance Low-end VR is the future of computer interaction.