Title:
RADIO WAVE BLOCKING METHOD AND RADIO WAVE SHUTTER
Document Type and Number:
Japanese Patent JP2016063440
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To make it possible to prevent a communication network of the connection destination of a mobile terminal from automatically switching to a communication network having weak electric field intensity.SOLUTION: A radio wave blocking method for attaching a radio wave shutter 100 including a radio wave blocking sheet 110 for blocking a radio wave 500 other than a set transmission frequency in a state of covering a window 300 of a building includes the steps of: the radio wave blocking sheet 110 setting the transmission frequency on the basis of electric field intensity in a room 10 of a radio wave at a data communication frequency used in data communication and electric field intensity in the room 10 of a radio wave of a voice call frequency used in a voice call; and the radio wave blocking sheet 110 blocking the radio wave 500 other than the transmission frequency.SELECTED DRAWING: Figure 1
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Inventors:
IKEDA HIDEKI
Application Number:
JP2014190734A
Publication Date:
April 25, 2016
Filing Date:
September 19, 2014
Export Citation:
Assignee:
HITACHI SYSTEMS LTD
International Classes:
H01Q15/14; E06B9/06; E06B9/42; H05K9/00
Attorney, Agent or Firm:
Yamato Tsutsui
Atsushi Sugada
Akiko Tsutsui
Tetsuya Sakaji
Atsushi Sugada
Akiko Tsutsui
Tetsuya Sakaji
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