System and method using triangulation with RF/LF and...

Communications: electrical – Condition responsive indicating system – Specific condition

Reexamination Certificate

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C340S573100, C340S573400, C340S572800, C340S572900, C340S539160, C340S311200, C340S870030, C455S150100, C455S151100, C455S517000, C455S456500

Reexamination Certificate

active

10853396

ABSTRACT:
The invention involves the usage of radio frequency, infrared, and low frequency radio frequency to accurately track transponders (tags) that are placed on objects. Transponders about the size of a small watch or a badge that can be worn on a lapel or pocket are used. The transponders are attached to staff, assets, and/or patients. Typically, ceiling mounted readers are used. The system utilizes the readers to triangulate the position of the transponders. The transponders can triangulate to a resolution accuracy of a couple of inches to 10 feet within 4 seconds. The system is also capable of triangulating the position of tags when they are lost to IR using RF. The system works with vector floor plans (AutoCAD or Microstation). This enables the system to function so that detail doesn't deteriorate even with large areas (100,000 square feet to unlimited miles). This enables accurate reading of room labels to quickly identify exact location of tags.

REFERENCES:
patent: 6104295 (2000-08-01), Gaisser et al.
patent: 6154139 (2000-11-01), Heller
patent: 6574482 (2003-06-01), Radomsky et al.
patent: 6674403 (2004-01-01), Gray et al.
patent: 6838992 (2005-01-01), Tenarvitz
patent: 2003/0235172 (2003-12-01), Wood
Web page—Visonic Technologies—About Us, Visonic Technologies, Enterprise Protection Solutions, Subheadings—Enterprise Solutions for Security, Safety and Communication, Meeting the Needs of a Diverse Market and Global Presence, ELPAS Overview, System Architecture—Elpas Four Basic Levels, pp. 1-5.
Web page—Healthcare Security: Resident Wandering; RoamAlert Plus Resident Wandering Protection System, Maximum Wandering Protection with Minimum Staff Interruption; eXI Systems, System Overview, pp. 1-2.
Web page—Versus Technology, Inc.—Your Source for Real-Time Locating Systems, Badges and Tags, Sensory Network Components, Auto Assignor, Viewing Software, Reporting Software, pp. 1-5.

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