公开(公告)号：US20180145716A1

公开(公告)日：2018-05-24

申请号：US15788840

申请日：2017-10-20

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Kota SAITO ,  Yoshihiro IMANISHI ,  Hiroshi KITADA ,  Hiroyuki TAKATSUJI ,  Masashi OMURO

IPC: H04B1/40 ,  H03H7/06

CPC classification number: H04B1/40 ,  H03H7/06 ,  H04B15/04

Abstract: A signal transmission and reception element transmits and receives a differential signal. Two transmission lines transmit the differential signal between the signal transmission and reception element and a connector. The signal transmission and reception element is connected to an external apparatus with the connector interposed therebetween. A noise generation source generates noise in a wireless band, which is coupled to the transmission lines. An antenna has a gain in a frequency band of the noise which is generated in the noise generation source. A wireless signal processing circuit processes a signal received by the antenna. An absorption-type filter that is mounted on the transmission lines absorbs noise mixed in the transmission lines.

公开(公告)号：US20160146871A1

公开(公告)日：2016-05-26

申请号：US15009155

申请日：2016-01-28

Applicant: MURATA MANUFACTURING CO., LTD.

Inventor： Kota SAITO

IPC: G01R27/26

CPC classification number: G01R27/2605 ,  G06F17/5036

Abstract: The relationship between capacitance value variation and an AC voltage value of a capacitor is obtained in advance as an approximation equation or table data. The AC voltage value applied to the capacitor in the circuit is calculated. The capacitance value of the capacitor is calculated from the AC voltage value calculated in step 3 on the basis of the obtained relationship. The calculated capacitance value of the capacitor and the capacitance value of the capacitor set to the set value are compared. If the result of the comparison is that there is a difference between the two values, the calculated value is set as a new set value and the same processing is repeated. If there is no longer a difference between the two values, the capacitance value calculated at that time is determined to be the capacitance value in the circuit.

Abstract translation: 预先获得电容值变化与电容器的交流电压值之间的关系，作为近似方程式或表格数据。 计算施加到电路中的电容器的AC电压值。 根据获得的关系，根据步骤3中计算出的交流电压值计算电容器的电容值。 将电容器的计算电容值和设定为设定值的电容器的电容值进行比较。 如果比较结果是两个值之间存在差异，则将计算值设置为新的设定值，并重复相同的处理。 如果两个值之间不再存在差异，那么计算出的电容值被确定为电路中的电容值。