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Title:
SYSTEM FOR PROVIDING LOCATION INFORMATION USING SOUND AND RADIO WAVES
Document Type and Number:
WIPO Patent Application WO/2014/204029
Kind Code:
A1
Abstract:
The present invention relates to a system for providing location information using sound and radio waves and, more particularly, to a system for providing location information using sound and radio waves, which can inform a user of the current location of the user in real time in various indoor environments, such as a department store, a shopping mall, a museum, and a gallery, using sound and radio waves having different propagation speeds.

More Like This:
WO/1989/004975TRANSDUCER DEVICE FOR ACOUSTIC LOG
Inventors:
LIM DONG-KWON (KR)
Application Number:
PCT/KR2013/005379
Publication Date:
December 24, 2014
Filing Date:
June 19, 2013
Export Citation:
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Assignee:
LIM DONG-KWON (KR)
International Classes:
G01S15/08; G01S15/74
Foreign References:
JP2001066360A2001-03-16
JPH05297117A1993-11-12
JP2007251647A2007-09-27
KR20010080814A2001-08-25
KR20040041938A2004-05-20
Attorney, Agent or Firm:
CHOI, Han-Sung (KR)
최한성 (KR)
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