Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
BEACON DEVICE AND BEACON TRANSMISSION/RECEPTION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/008813
Kind Code:
A1
Abstract:
Provided are a beacon device and a beacon transmission/reception system, which are capable of improving the signal intensity of a beacon signal in a specific direction. The present invention has: a transmitter 140 that transmits a beacon signal; and a shield case 130, which is provided with a bottom surface 131, and a side wall 132, and which houses the transmitter 140, said shield case being a conductive member. The upper surface of the shield case 130 is an open plane 133, and the size of the open plane 133 is half the wavelength of the beacon signal or within a predetermined range from the half wavelength.

Inventors:
SERIZAWA Hirohiko (20-10 Nakayoshida, Suruga-ku, Shizuoka-sh, Shizuoka 54, 〒4228654, JP)
SAEKI Takashi (20-10 Nakayoshida, Suruga-ku, Shizuoka-sh, Shizuoka 54, 〒4228654, JP)
Application Number:
JP2018/005454
Publication Date:
January 10, 2019
Filing Date:
February 16, 2018
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
STAR MICRONICS CO., LTD. (20-10 Nakayoshida, Suruga-ku Shizuoka-sh, Shizuoka 54, 〒4228654, JP)
International Classes:
H01Q23/00; G01S1/68; H01Q13/18; H05K9/00; G07G1/06
Domestic Patent References:
WO2000048269A12000-08-17
WO2008122831A12008-10-16
Foreign References:
JPH1174723A1999-03-16
JP2004015160A2004-01-15
JP2005191636A2005-07-14
JP2005167833A2005-06-23
JPH02244803A1990-09-28
US20130244739A12013-09-19
US20090153412A12009-06-18
Download PDF: