JPS5828453U - telephone recording device - Google Patents
telephone recording deviceInfo
- Publication number
- JPS5828453U JPS5828453U JP12319681U JP12319681U JPS5828453U JP S5828453 U JPS5828453 U JP S5828453U JP 12319681 U JP12319681 U JP 12319681U JP 12319681 U JP12319681 U JP 12319681U JP S5828453 U JPS5828453 U JP S5828453U
- Authority
- JP
- Japan
- Prior art keywords
- recording device
- bridge circuit
- telephone line
- telephone recording
- telephone
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案の一例の接続図、第２図は他の例の接続
図である。
１はブリッジ回路、２は電話回線、４は信号形成回路、
５は録音ヘッドである。FIG. 1 is a connection diagram of one example of the present invention, and FIG. 2 is a connection diagram of another example. 1 is a bridge circuit, 2 is a telephone line, 4 is a signal forming circuit,
5 is a recording head.
Claims (1)
含むことにより平衡状態になるブリッジ回路を有し、所
定の信号を上記ブリッジ回路を通じて上記電話回線に供
給すると共に、上記ブリッジ回路の２点からの出力を混
合して録音機に供給するようにし、上記平衡状態におい
ては上記信号が相殺されて上記録音機側に出力されない
ようにした電話録音装置。It has a bridge circuit to which a telephone line is connected and which is in a balanced state by including the impedance of the telephone line, supplies a predetermined signal to the telephone line through the bridge circuit, and outputs from two points of the bridge circuit. A telephone recording device in which the signals are mixed and supplied to the recorder, and in the equilibrium state, the signals are canceled out and not output to the recorder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12319681U JPS5828453U (en) | 1981-08-20 | 1981-08-20 | telephone recording device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12319681U JPS5828453U (en) | 1981-08-20 | 1981-08-20 | telephone recording device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5828453U true JPS5828453U (en) | 1983-02-24 |
Family
ID=29917101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12319681U Pending JPS5828453U (en) | 1981-08-20 | 1981-08-20 | telephone recording device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5828453U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4939842A (en) * | 1972-08-23 | 1974-04-13 | ||
| JPS5372504A (en) * | 1976-12-10 | 1978-06-28 | Sony Corp | Recording device |
-
1981
- 1981-08-20 JP JP12319681U patent/JPS5828453U/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4939842A (en) * | 1972-08-23 | 1974-04-13 | ||
| JPS5372504A (en) * | 1976-12-10 | 1978-06-28 | Sony Corp | Recording device |
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