Methods and Systems for Indoor Navigation

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Patent relating to methods and systems for indoor navigation.

Physical Description

53 p. : ill.

Creation Information

Dantu, Ram June 7, 2012.


This patent is part of the collection entitled: UNT Scholarly Works and was provided by UNT College of Engineering to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 120 times , with 4 in the last month . More information about this patent can be viewed below.


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Patent relating to methods and systems for indoor navigation.

Physical Description

53 p. : ill.


Abstract: Methods and systems for indoor navigation utilize a smartphone equipped with various sensors. When a person whose initial position is unknown, and in some circumstances whose sight has been impaired, specifies a destination, the navigation system will calculate the coordinates of his/her present location from the sensor readings. It will then calculate the distance to be traveled to the destination and form routes to direct him/her towards the desired location. These steps are carried out using sensor readings and in some cases magnetic maps of the interiors of buildings stored on the smartphone. In some cases dynamic time warping (“DTW”) is used to align a recorded signature of the person's movement through the building with a stored magnetic map in order to identify the person's location within the building.

Related U.S. Application Data: Provisional application number 61/393240, filed on October 14, 2010.



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  • Patent Number: US20120143495A1
  • Government Documents No.: 13/273142
  • Archival Resource Key: ark:/67531/metadc307092


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UNT Scholarly Works

Materials from the UNT community's research, creative, and scholarly activities and UNT's Open Access Repository. Access to some items in this collection may be restricted.

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Submitted Date

  • October 13, 2011

Accepted Date

  • June 7, 2012

Creation Date

  • June 7, 2012

Added to The UNT Digital Library

  • July 18, 2014, 11:30 a.m.

Description Last Updated

  • Dec. 12, 2017, 8:20 p.m.

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Dantu, Ram. Methods and Systems for Indoor Navigation, patent, June 7, 2012; [Washington, D.C.]. ( accessed October 20, 2018), University of North Texas Libraries, Digital Library,; crediting UNT College of Engineering.