Title:
スイッチング周波数設定ユニット、無線通信装置、スイッチング周波数設定方法、およびスイッチング周波数設定プログラム
Document Type and Number:
Japanese Patent JP6878799
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a technique for suppressing decrease in the S/N ratio of radiocommunication due to switching noise generated in a switching power supply.SOLUTION: A switching frequency setting unit 12 sets the switching frequency of a switching power supply 10 for a radio communication unit 13, and a reader/writer 1 having the switching power supply 10. The noise voltage detection instruction unit 12a of the switching frequency setting unit 12 instructs the reader/writer 1 to detect a noise voltage at a reception signal strength detector 11a for detecting reception signal strength of radio communication signal received by the radio communication unit 13. Furthermore, a switching frequency determination unit 12b determines the switching frequency of the switching power supply 10 in the reader/writer 1, based on the noise voltage detected by the reader/writer 1 in the reception signal strength detector 11a.SELECTED DRAWING: Figure 2
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Inventors:
Shuichi Matsui
Application Number:
JP2016173576A
Publication Date:
June 02, 2021
Filing Date:
September 06, 2016
Export Citation:
Assignee:
OMRON Corporation
International Classes:
H04B15/02; H02M3/00
Domestic Patent References:
| JP2001016848A | ||||
| JP2009141415A | ||||
| JP2013223386A | ||||
| JP2006311766A | ||||
| JP2010057120A | ||||
| JP2008311896A |
Foreign References:
| US20130279203 |
Other References:
村川 一雄,線形予測法(LPC)に基づく電源線伝導ノイズの周波数成分の抽出について,電子情報通信学会技術研究報告,日本,社団法人電子情報通信学会,2011年 5月19日,Vol.111, No.66,第87-92頁
Attorney, Agent or Firm:
Kaede International Patent Office