Environmental location system
AssigneeX-Cyte, Inc.
InventorPaul A. Nysen
Life of this patent
Estimating the term…
Abstract
A system and method for determining a location. The system employs encoded information devices dispersed through the environment, each having, a non-unique code associated therewith. The codes from the encoded information devices are acquired as a reading device passes nearby, and stored. The codes from a proximate set of information devices are correlated with a map or mapping relation to determine one or more consistent positions within the environment. The information devices are preferably passive acoustic wave transponders and the mapping relation may be a pseudorandom sequence or a defined map.
Claims21
A method of determining a location in an environment, comprising:
- (a) sequentially recording a set of respective non-unique identifiers for a subset of a set of landmarks, said set of landmarks having predetermined relative positions said identifiers being recorded in conjunction with a positional relationship therebetween;
- (b) comparing said sequentially recorded identifiers and positional relationships with a map of said predetermined relative positions, to determine one or more most likely corresponding positions;
- and
- (c) outputting position information.
A system for determining a location in an environment, comprising:
- (a) a memory for storing sequential sets of respective non-unique identifiers for a subset of a set of landmarks, said set of landmarks having predetermined relative positions, said identifiers being recorded in conjunction with a positional relationship therebetween;
- (b) a processor for comparing said sequentially recorded identifiers and positional relationships with a map of said predetermined relative positions, to determine one or more most likely corresponding positions;
- and
- (c) an output presenting the determined position information.
Dependencies are inferred from the claim text.