JPS63102408U - - Google Patents
Info
- Publication number
- JPS63102408U JPS63102408U JP1986198095U JP19809586U JPS63102408U JP S63102408 U JPS63102408 U JP S63102408U JP 1986198095 U JP1986198095 U JP 1986198095U JP 19809586 U JP19809586 U JP 19809586U JP S63102408 U JPS63102408 U JP S63102408U
- Authority
- JP
- Japan
- Prior art keywords
- electrocardiographic
- frequency
- detecting
- electrocardiographic signal
- notch filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims description 2
- 230000000747 cardiac effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 239000013256 coordination polymer Substances 0.000 description 1
Landscapes
- Networks Using Active Elements (AREA)
Description
第１図は本考案が適用された心電信号検出装置
の制御回路の要部を示す図である。第２図は第１
図におけるノツチフイルタの構成を示す回路図で
ある。第３図は第１図における電源信号ＳＶの一
例を示す図である。第４図は検出された電源周波
数に基づいてノツチフイルタへ出力する制御信号
ＣＶの大きさを決定するために用いられる予め定
められた関係の一例を示す図である。
１０：電極、１６：ノツチフイルタ、３０：ブ
リツジ整流器、３２：Ａ／Ｄ変換器、３４：ＣＰ
Ｕ、３６：Ｄ／Ａ変換器。
FIG. 1 is a diagram showing a main part of a control circuit of an electrocardiographic signal detection device to which the present invention is applied. Figure 2 is the first
FIG. 2 is a circuit diagram showing the configuration of the notch filter shown in the figure. FIG. 3 is a diagram showing an example of the power supply signal SV in FIG. 1. FIG. 4 is a diagram showing an example of a predetermined relationship used to determine the magnitude of the control signal CV to be output to the notch filter based on the detected power supply frequency. 10: Electrode, 16: Notch filter, 30: Bridge rectifier, 32: A/D converter, 34: CP
U, 36: D/A converter.
Claims (1)
該心電波を表す心電信号を出力する心電センサと
、該心電信号から電源の周波数に基づくノイズを
除去するノツチフイルタとを備えた心電信号検出
装置において、 前記電源の周波数を検出する検出手段を設ける
一方、前記ノツチフイルタを中心周波数が変更可
能な周波数可変フイルタにて構成し、さらに、該
ノツチフイルタの中心周波数を前記検出手段によ
り検出された電源周波数と一致するように変更す
る中心周波数変更手段を設けたことを特徴とする
心電信号検出装置。[Claim for Utility Model Registration] An electrocardiographic sensor that detects electrocardiographic waves generated due to cardiac activity and outputs an electrocardiographic signal representing the electrocardiographic waves, and an electrocardiographic sensor that detects noise based on the frequency of a power source from the electrocardiographic signal. In an electrocardiographic signal detection device equipped with a notch filter for removing, a detecting means for detecting the frequency of the power source is provided, and the notch filter is constituted by a variable frequency filter whose center frequency can be changed, and further, An electrocardiographic signal detecting device comprising a center frequency changing means for changing the frequency to match the power supply frequency detected by the detecting means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986198095U JPS63102408U (en) | 1986-12-23 | 1986-12-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986198095U JPS63102408U (en) | 1986-12-23 | 1986-12-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63102408U true JPS63102408U (en) | 1988-07-04 |
Family
ID=31158469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986198095U Pending JPS63102408U (en) | 1986-12-23 | 1986-12-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63102408U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5749432A (en) * | 1980-07-02 | 1982-03-23 | Hewlett Packard Yokogawa | Moise removing circuit |
-
1986
- 1986-12-23 JP JP1986198095U patent/JPS63102408U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5749432A (en) * | 1980-07-02 | 1982-03-23 | Hewlett Packard Yokogawa | Moise removing circuit |