JPH0365339U - - Google Patents
Info
- Publication number
- JPH0365339U JPH0365339U JP12744489U JP12744489U JPH0365339U JP H0365339 U JPH0365339 U JP H0365339U JP 12744489 U JP12744489 U JP 12744489U JP 12744489 U JP12744489 U JP 12744489U JP H0365339 U JPH0365339 U JP H0365339U
- Authority
- JP
- Japan
- Prior art keywords
- telephone
- resistor
- line
- telephone lines
- telephone line
- 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.)
- Granted
Links
- 230000037431 insertion Effects 0.000 claims 2
- 238000003780 insertion Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
Description
第１図はこの考案の一実施例を示す構成図、第
２図は電話機の移動動作の説明図である。
１ａ，１ｂ，２ａ，２ｂ……端子、３ａ，３ｂ
……ライン、４……ブリツジ整流回路、５……抵
抗器、６……発光ダイオード、７ｃ……リレーの
コイル、７ｓ……リレーのスイツチ、８，９……
押し釦スイツチ、１０Ａ，１０Ｂ……回線保持回
路、２０……電話回線。
FIG. 1 is a block diagram showing an embodiment of this invention, and FIG. 2 is an explanatory diagram of the moving operation of the telephone. 1a, 1b, 2a, 2b... terminal, 3a, 3b
... Line, 4 ... Bridge rectifier circuit, 5 ... Resistor, 6 ... Light emitting diode, 7c ... Relay coil, 7s ... Relay switch, 8, 9 ...
Push button switch, 10A, 10B...Line holding circuit, 20...Telephone line.
Claims (1)
線電圧を利用して電話回線間に挿入する抵抗挿入
手段と、 上記電話回線間を短絡して上記抵抗挿入を解除
する解除手段とを備えてなる電話回線保持回路。[Claim for Utility Model Registration] Resistance insertion means for inserting a resistor between telephone lines using line voltage to maintain the telephone line in a connected state, and releasing the resistor insertion by short-circuiting the telephone lines. A telephone line holding circuit comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989127444U JPH0756522Y2 (en) | 1989-10-31 | 1989-10-31 | Telephone line holding circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989127444U JPH0756522Y2 (en) | 1989-10-31 | 1989-10-31 | Telephone line holding circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0365339U true JPH0365339U (en) | 1991-06-25 |
| JPH0756522Y2 JPH0756522Y2 (en) | 1995-12-25 |
Family
ID=31675199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989127444U Expired - Lifetime JPH0756522Y2 (en) | 1989-10-31 | 1989-10-31 | Telephone line holding circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0756522Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5487004A (en) * | 1977-12-23 | 1979-07-11 | Nippon Telegr & Teleph Corp <Ntt> | Plug-in telephone holding device |
| JPS6123755U (en) * | 1984-07-19 | 1986-02-12 | 株式会社田村電機製作所 | hold circuit |
-
1989
- 1989-10-31 JP JP1989127444U patent/JPH0756522Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5487004A (en) * | 1977-12-23 | 1979-07-11 | Nippon Telegr & Teleph Corp <Ntt> | Plug-in telephone holding device |
| JPS6123755U (en) * | 1984-07-19 | 1986-02-12 | 株式会社田村電機製作所 | hold circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0756522Y2 (en) | 1995-12-25 |
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