Patent ID: 6483461
Filing Date: 2002-11-19
Classification: A63B,G01S,H04B

Abstract:
A system for locating a plurality of objects in a three-dimensional space; the system comprising:(a) a digital time-shift modulated ultra wideband impulse radio network; said impulse radio network employing pulse position modulation for indicating information; said impulse radio network including at least three reference impulse radio units and at least one mobile position indicating apparatus; position information relating said at least three reference impulse radio units being recorded by at least one indicating reference impulse radio unit of said at least three reference impulse radio units; said at least three reference impulse radio units being in mutual communication; and (b) an affixing structure; said affixing structure affixing a respective mobile position indicating apparatus of said at least one mobile position indicating apparatus with a respective object of said plurality of objects; a respective mobile position indicating apparatus of said at least one mobile position indicating apparatus transmitting an impulse radio identifying signal; said identifying signal being received by at least one receiving reference impulse radio unit of said plurality of reference impulse radio units; at least one indicating reference impulse radio unit of said at least three reference impulse radio units cooperating with said at least one receiving reference impulse radio unit in using said identifying signal for developing coordinate information for determining said locating of said respective mobile position indicating apparatus.