Title:
POSITIONING DEVICE, COMMUNICATION DEVICE AND POSITIONING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2017/145789
Kind Code:
A1
Abstract:
This technology pertains to a positioning device, a communication device and a positioning system capable of suppressing power consumption more reliably. The positioning device transmits an instruction to start distance measurement to the communication device and executes distance measurement between the positioning device and the communication device when identification information contained in a received wireless signal is identification information to be searched for, and reception strength of the wireless signal exceeds a predetermined value. The communication device executes distance measurement between the communication device and the positioning device when receiving an instruction from the positioning device to start distance measurement from the positioning device and the communication device. This technology may be applied to the positioning system.
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| JP2007010639 | ACTIVE TAG APPARATUS |
Inventors:
NISHIYAMA FUMIHIRO (JP)
KONDO FUMITAKA (JP)
KONDO FUMITAKA (JP)
Application Number:
PCT/JP2017/004847
Publication Date:
August 31, 2017
Filing Date:
February 10, 2017
Export Citation:
Assignee:
SONY CORP (JP)
International Classes:
G01S11/00; G01C3/06; G01S11/02
Domestic Patent References:
| WO2015073969A1 | 2015-05-21 |
Foreign References:
| JP2011188413A | 2011-09-22 | |||
| JP2009253494A | 2009-10-29 | |||
| JP5792412B1 | 2015-10-14 | |||
| JP2013088286A | 2013-05-13 | |||
| JP2013167559A | 2013-08-29 | |||
| JP2002340555A | 2002-11-27 | |||
| US20090231958A1 | 2009-09-17 |
Attorney, Agent or Firm:
NISHIKAWA Takashi et al. (JP)
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