Title:
RADIATION DEVICE, POSITIONING SYSTEM, ALARM SYSTEM, SOUND PICKUP SYSTEM, AND DISPLAY SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/123957
Kind Code:
A1
Abstract:
Provided is a positioning system, etc., with which it is possible to process position information without relying on terminal devices in indoor spaces, etc., where it is difficult to use GPS. A radiation device 10 used in a positioning system 1 has a power source unit 18 for receiving electric power supplied from a power source and distributing the electric power, at least one radiation element 11a for using the electric power distributed by the power source unit 18 to radiate waves, and a reception antenna device 12 for using the electric power distributed by the power source unit 18 to receive a wireless signal. The wireless signal is a beacon signal that is emitted from an external device 5 and that is used in measuring the position of the external device 5.
Inventors:
ITO JUNJI (JP)
LIU HUASHI (JP)
LIU HUASHI (JP)
Application Number:
PCT/JP2017/046402
Publication Date:
July 05, 2018
Filing Date:
December 25, 2017
Export Citation:
Assignee:
NIDEC CORP (JP)
International Classes:
G01S5/04; G01S13/74; G08B25/04; H04R3/00; H05B37/02
Foreign References:
| JP2012251959A | 2012-12-20 | |||
| JP2016057166A | 2016-04-21 | |||
| JPS55112271U | 1980-08-07 | |||
| JP2013113740A | 2013-06-10 | |||
| JP2012227021A | 2012-11-15 | |||
| JP2016072125A | 2016-05-09 | |||
| JP2012249254A | 2012-12-13 | |||
| JPH01108599U | 1989-07-21 |
Attorney, Agent or Firm:
OKUDA Seiji (JP)
Download PDF:
Previous Patent: USER DEVICE, BASE STATION, AND SIGNAL RECEPTION METHOD
Next Patent: BALLOON CATHETER FOR IABP
Next Patent: BALLOON CATHETER FOR IABP