Firefighter locator

Details Firefighter locator Firefighter locator

2005-11-15

2005-11-15

Tarcza, Thomas H. (Department: 3662)

Communications: directive radio wave systems and devices (e.g.,

Directive

Beacon or receiver

C342S462000

Reexamination Certificate

active

06965344

ABSTRACT:
A wireless system and method for locating the position of a movable signal emitter located inside or adjacent to a structure includes establishing at least three base station sites at known locations around the structure. The signal emitter then transmits an omni-directional, low frequency, RF signal that is received at the base station sites. Phase information is measured at each base station site and communicated to a central processing site. At the central processing site, relative phase delays are used to geometrically calculate the position of the signal emitter.

REFERENCES:
patent: 3680121 (1972-07-01), Anderson et al.
patent: 4021807 (1977-05-01), Culpepper et al.
patent: 4728959 (1988-03-01), Maloney
patent: 5327144 (1994-07-01), Stilp
patent: 5534876 (1996-07-01), Erickson
patent: 5583517 (1996-12-01), Yokev
patent: 5596330 (1997-01-01), Yokev
patent: 5664006 (1997-09-01), Monte
patent: 5790076 (1998-08-01), Sypniewski
patent: 5999131 (1999-12-01), Sullivan
patent: 6166691 (2000-12-01), Lindqvist
patent: 6239748 (2001-05-01), Gilhousen
Matthew S. Reynolds; A Phase Measurement Radio P ositioning System for Indoor Use; Thesis; Massachusetts Institute of Technology; Jul. 15, 1999.

Affiliated with

Also associated with

Rating

Firefighter locator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Firefighter locator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Firefighter locator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3505340