JPS6355657U - - Google Patents
Info
- Publication number
- JPS6355657U JPS6355657U JP14904286U JP14904286U JPS6355657U JP S6355657 U JPS6355657 U JP S6355657U JP 14904286 U JP14904286 U JP 14904286U JP 14904286 U JP14904286 U JP 14904286U JP S6355657 U JPS6355657 U JP S6355657U
- Authority
- JP
- Japan
- Prior art keywords
- noise filter
- noise
- telephone
- selection device
- filter selection
- 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
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Filters And Equalizers (AREA)
- Noise Elimination (AREA)
Description
第１図はこの考案の電話用ノイズフイルタ選定
装置の電気回路図、第２図は同上装置の一部切り
欠き斜視図、第３図は同上箱体の一部の断面図で
ある。
尚、図中符号１は箱体、２は入力ジヤツク、３
は出力ジヤツク、１１，１２，１３，１４はノイ
ズフイルタ、２１，２２，２３，２４は切り換え
スイツチである。
FIG. 1 is an electric circuit diagram of the telephone noise filter selection device of this invention, FIG. 2 is a partially cutaway perspective view of the device, and FIG. 3 is a sectional view of a portion of the box. In the figure, 1 is a box, 2 is an input jack, and 3 is a box.
is an output jack; 11, 12, 13, and 14 are noise filters; and 21, 22, 23, and 24 are changeover switches.
Claims (1)
イツチをそれぞれ備えた箱体内に、ノイズの周波
数域に応じた複数種のノイズフイルタを収容し、
切り換えスイツチの切り換えにより、これらのノ
イズフイルタの内任意のものを上記入力ジヤツク
及び出力ジヤツク間に接続可能なように回路を構
成したことを特徴とする電話用ノイズフイルタ選
定装置。 ２ ノイズフイルタがチヨークコイルである実用
新案登録請求の範囲第１項記載の電話用ノイズフ
イルタ選定装置。 ３ 箱体にシールド板を積層した実用新案登録請
求の範囲第１項又は第２項記載の電話用ノイズフ
イルタ選定装置。 ４ 回路内に周波数の表示器を組み込んだ実用新
案登録請求の範囲第１項又は第２項又は第３項記
載の電話用ノイズフイルタ選定装置。[Scope of Claim for Utility Model Registration] 1. Multiple types of noise filters according to the frequency range of noise are housed in a box each equipped with an input jack, an output jack, and a changeover switch,
A noise filter selection device for a telephone, characterized in that a circuit is configured such that any one of these noise filters can be connected between the input jack and the output jack by switching a changeover switch. 2. The telephone noise filter selection device according to claim 1, wherein the noise filter is a chiyoke coil. 3. A telephone noise filter selection device according to claim 1 or 2 of the utility model registration claim, which comprises a box body and a shield plate laminated thereon. 4. The telephone noise filter selection device according to claim 1, 2, or 3 of the utility model registration claim, which incorporates a frequency indicator in the circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14904286U JPS6355657U (en) | 1986-09-29 | 1986-09-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14904286U JPS6355657U (en) | 1986-09-29 | 1986-09-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6355657U true JPS6355657U (en) | 1988-04-14 |
Family
ID=31063875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14904286U Pending JPS6355657U (en) | 1986-09-29 | 1986-09-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6355657U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS574831B2 (en) * | 1976-08-10 | 1982-01-27 |
-
1986
- 1986-09-29 JP JP14904286U patent/JPS6355657U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS574831B2 (en) * | 1976-08-10 | 1982-01-27 |