Re: INDOOR Positioning: New Solutions for Challenging Applications

From: Dale DePriest (Dale_at_gpsinformation.net)
Date: 08/03/04 

Date: Tue, 03 Aug 2004 09:41:08 -0700

Hardly first, I am afraid. There are already patents on this technology.

Dale

Hans-Georg Michna wrote:

> How about this proposal for indoor positioning?
>
> To open an area to positioning, go there and find out what
> electromagnetic signals are there (like TV signals). Pick
> several of the most suitable ones and watch for certain
> conspicuous signal sequences.
>
> On another channel, broadcast the information about the exact
> timing of these conspicuous signal sequences along with the
> locations of the transmitters.
>
> That's all there is to it. The receivers, of course, would have
> to look for those conspicuous signal sequences and store them
> for some time, FIFO fashion, until they receive the timing
> information a little later, then they can determine the
> position.
>
> The advantage of this method is that the transmitters and their
> signals don't have to be modified. They only have to be
> evaluated and processed.
>
> Remember, you've read it here first. (:-)
>
> Hans-Georg
> 

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