JPS6418862U - - Google Patents
Info
- Publication number
- JPS6418862U JPS6418862U JP8692288U JP8692288U JPS6418862U JP S6418862 U JPS6418862 U JP S6418862U JP 8692288 U JP8692288 U JP 8692288U JP 8692288 U JP8692288 U JP 8692288U JP S6418862 U JPS6418862 U JP S6418862U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- control signal
- detection circuit
- switch
- detects
- 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
- 238000001514 detection method Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000010355 oscillation Effects 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
Landscapes
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Description
第１図は従来から提案されているインターホン
を示す回路図、第２図は本考案によるインターホ
ンの好ましい実施例を示す回路図である。
１０……送信系、１２……受信系、３０……発
振回路、３３……選択回路（ＯＲ回路）、３４…
スイツチ。
FIG. 1 is a circuit diagram showing a conventionally proposed intercom, and FIG. 2 is a circuit diagram showing a preferred embodiment of the intercom according to the present invention. 10... Transmission system, 12... Receiving system, 30... Oscillation circuit, 33... Selection circuit (OR circuit), 34...
Switch.
補正 昭６３．７．２８
考案の名称を次のように補正する。
考案の名称 搬送式インターホン装置
実用新案登録請求の範囲、図面の簡単な説明を
次のように補正する。Amendment July 28, 1983 The name of the invention is amended as follows. Title of the invention: Transportable intercom device The scope of the utility model registration claims and the brief description of the drawings are amended as follows.
【実用新案登録請求の範囲】
受信系１２に、搬送波を復調する復調部１８で
搬送波を復調したとき閉成される第１のスイツチ
ＳＷ１と、前記第１のスイツチＳＷ１と直列に接
続された第２のスイツチＳＷ２と、前記第１、第
２のスイツチＳＷ１，ＳＷ２が閉成されたとき能
動となる低周波増幅器１９と、前記低周波増幅器
から出力される音声信号が入力されるスピーカＳ
Ｐと、送信系１０から送出されたトーン信号を検
出するトーン信号検出回路３１と、前記トーン信
号検出回路に出力があり、かつフツクスイツチ３
４が閉成されたとき能動となり前記第２のスイツ
チを閉成させるＯＲ回路３３とを備え、前記送信
系に前記トーン信号を発生するトーン信号発生回
路３０と、前記低周波増幅器へ送出される呼出信
号を発生する呼出信号発生回路２９とを備えたこ
とを特徴とする搬送式インターホン装置。[Claims for Utility Model Registration] In the receiving system 12, a first switch SW 1 that is closed when the carrier wave is demodulated by a demodulator 18 that demodulates the carrier wave is connected in series with the first switch SW 1 . A second switch SW 2 , a low frequency amplifier 19 which becomes active when the first and second switches SW 1 and SW 2 are closed, and an audio signal output from the low frequency amplifier are input. Speaker S
P, a tone signal detection circuit 31 that detects the tone signal sent out from the transmission system 10, and a tone signal detection circuit 31 that has an output and a switch 3.
an OR circuit 33 that becomes active and closes the second switch when 4 is closed; A carrier type intercom device comprising a calling signal generation circuit 29 that generates a calling signal.
【図面の簡単な説明】
第１図は従来から提案されている搬送式インタ
ーホンを示す回路図、第２図は本考案による搬送
式インターホン装置の好ましい実施例を示す回路
図である。
１０……送信系、１２……受信系、１９……低
周波増幅器、２９……呼出信号発生回路、３０…
…トーン信号発生回路、３１……トーン信号検出
回路、３３……ＯＲ回路、３４……フツクスイツ
チ、ＳＷ１……第１のスイツチ、ＳＷ２……第２
のスイツチ、ＳＰ……スピーカ。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a circuit diagram showing a conventionally proposed transportable intercom, and FIG. 2 is a circuit diagram showing a preferred embodiment of the transportable intercom device according to the present invention. 10... Transmission system, 12... Receiving system, 19... Low frequency amplifier, 29... Calling signal generation circuit, 30...
...Tone signal generation circuit, 31...Tone signal detection circuit, 33...OR circuit, 34...Hook switch, SW1 ...first switch, SW2 ...second
Switch, SP...Speaker.
Claims (1)
制御信号を発生する制御信号発生回路を設け、受
信系に前記制御信号を検出する検出回路と、応答
時又は前記検出回路が動作したとき前記音声出力
手段を能動とする回路とを設けたことを特徴とす
る搬送式インターホン装置。 The transmission system is provided with a control signal generation circuit that generates a control signal that activates the audio output means of the reception system, the reception system is provided with a detection circuit that detects the control signal, and a detection circuit that detects the control signal when responding or when the detection circuit is activated. 1. A transport type intercom device, characterized in that it is provided with a circuit that activates voice output means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8692288U JPH0328619Y2 (en) | 1988-06-30 | 1988-06-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8692288U JPH0328619Y2 (en) | 1988-06-30 | 1988-06-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6418862U true JPS6418862U (en) | 1989-01-30 |
| JPH0328619Y2 JPH0328619Y2 (en) | 1991-06-19 |
Family
ID=31311562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8692288U Expired JPH0328619Y2 (en) | 1988-06-30 | 1988-06-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0328619Y2 (en) |
-
1988
- 1988-06-30 JP JP8692288U patent/JPH0328619Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0328619Y2 (en) | 1991-06-19 |
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