Title:
COMMUNICATION METHOD AND COMMUNICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2013/118811
Kind Code:
A1
Abstract:
A communication system comprises a step of applying a time of a vehicle-mounted device if the quality of GPS radio waves is equal to or lower than a predetermined value or if the vehicle-mounted device exists at an accuracy degradation position stored in a GPS time accuracy degradation place database.
Inventors:
MURATA HIDEAKI (JP)
KATO SEIKI (JP)
NAGATA TAKESHI (JP)
HAYAKAWA YOSHIFUMI (JP)
TAKEUCHI HISAJI (JP)
KATO SEIKI (JP)
NAGATA TAKESHI (JP)
HAYAKAWA YOSHIFUMI (JP)
TAKEUCHI HISAJI (JP)
Application Number:
PCT/JP2013/052841
Publication Date:
August 15, 2013
Filing Date:
February 07, 2013
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD (JP)
International Classes:
H04W56/00; G08G1/09; H04W4/04
Foreign References:
| JP2010004413A | 2010-01-07 | |||
| JP2004304341A | 2004-10-28 | |||
| JP2000332678A | 2000-11-30 |
Attorney, Agent or Firm:
MORI Ryuichirou et al. (JP)
Woods Ryuichiro (JP)
Woods Ryuichiro (JP)
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Claims:
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