Title:
WIRELESS MICROPHONE SYSTEM
Document Type and Number:
Japanese Patent JP2019186611
Kind Code:
A
Abstract:
To provide a wireless microphone system capable of acquiring position information of a transmitter in an operation area, and adjusting a sensitivity of a reception antenna to an appropriate value on the basis of the position information of the transmitter received.SOLUTION: An antenna sensitivity setting unit 4 adjusts a reception sensitivity of an electric wave from a transmitter 1 by a reception antenna 3. An electric wave intensity detection unit is provided in each of access points AP1 to APn, and detects an electric wave intensity of the transmitter. An electric wave intensity acquisition unit 5 receives the electric wave intensity of the transmitter from each access point. A position information calculation unit 6 calculates a position of the transmitter on the basis of the electric wave intensity of the transmitter received by the electric wave intensity acquisition unit 5. An antenna sensitivity calculation unit 7 calculates the reception sensitivity of the reception antenna on the basis of a position of the transmitter calculated by the position information calculation unit, and outputs the calculated reception sensitivity to the antenna sensitivity setting unit.SELECTED DRAWING: Figure 1
Inventors:
KIRYU SHINYA
Application Number:
JP2018071182A
Publication Date:
October 24, 2019
Filing Date:
April 02, 2018
Export Citation:
Assignee:
TAMURA SEISAKUSHO KK
International Classes:
G01S5/02; H04B1/16; H04R1/06
Domestic Patent References:
| JP2006060615A | 2006-03-02 | |||
| JP2006054601A | 2006-02-23 | |||
| JP2002044778A | 2002-02-08 | |||
| JP2003318756A | 2003-11-07 | |||
| JP2010500604A | 2010-01-07 |
Attorney, Agent or Firm:
Kiuchi Mitsuharu