JPS63209351A - Telephone set circuit - Google Patents
Telephone set circuitInfo
- Publication number
- JPS63209351A JPS63209351A JP4400487A JP4400487A JPS63209351A JP S63209351 A JPS63209351 A JP S63209351A JP 4400487 A JP4400487 A JP 4400487A JP 4400487 A JP4400487 A JP 4400487A JP S63209351 A JPS63209351 A JP S63209351A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- switch
- sending
- external input
- input signal
- 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
- 230000000881 depressing effect Effects 0.000 abstract 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は保留音送出回路と外部入力信号送出回路を有す
る電話機回路に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a telephone circuit having a hold music sending circuit and an external input signal sending circuit.
（従来の技術）
従来のこの種の電話機は保留スイッチ押下により保留音
送出回路から保留音送出信号をラインに出力し、また、
外部入力端子等から外部信号が入力されると外部信号送
出回路から外部入力信号をラインに出力していた。(Prior art) This type of conventional telephone outputs a hold music sending signal from a hold music sending circuit to the line when the hold switch is pressed, and
When an external signal is input from an external input terminal or the like, the external signal output circuit outputs the external input signal to the line.
（発明が解決しようとする問題点）
したがって、通話相手を保留中に外部入力信号が入った
場合には保留音送出信号と外部入力信号を同時にライン
に送出するので、ラインに送出する信号が不明瞭になっ
てしまうという欠点があった。(Problem to be solved by the invention) Therefore, if an external input signal is input while the other party is on hold, the hold tone sending signal and the external input signal are simultaneously sent to the line, so the signal sent to the line is not correct. The drawback was that it became too obvious.
本発明の目的は上述の欠点を解決し、送出しようとする
信号を明瞭にすることができる電話機回路を提供するこ
とにある。The object of the invention is to overcome the above-mentioned drawbacks and to provide a telephone circuit which makes it possible to make the signals to be sent clear.
（問題点を解決するための手段）
前記目的全達成するために本発明による電話機回路は保
留音送出回路と、外部入力信号送出回路と、前記保留音
送出口路の出力と前記外部入力信号送出回路の出力とを
切替えるスイッチ回路と、保留スイッチと、外部入力信
号送出スイッチと、前記保留スイッチのオン状朝全検出
したときは前記保留音送出回路出力全選択し、前記外部
入力信号スイッチのオン状態を検出したときは前記外部
信号送出回路出力を選択するように前記スイッチ回路を
制御し、選択した出力をラインに出力させる制御回路と
から構成されている。(Means for Solving the Problems) In order to achieve all of the above objects, a telephone circuit according to the present invention includes a holding music sending circuit, an external input signal sending circuit, an output of the holding music sending outlet path, and the external input signal sending circuit. A switch circuit for switching the output of the circuit, a hold switch, an external input signal sending switch, and when all of the hold switches are detected to be on, select all outputs of the held music sending circuit, and turn on the external input signal switch. The control circuit includes a control circuit that controls the switch circuit to select the output of the external signal sending circuit when a state is detected, and outputs the selected output to the line.
（実 施 例） 以下、本発明について図面を参照して説明する。(Example) Hereinafter, the present invention will be explained with reference to the drawings.
第１図は本発明による電話機回路の一実施例を示すブロ
ック図である。FIG. 1 is a block diagram showing one embodiment of a telephone circuit according to the present invention.
制御回路１には、保留スイッチ２と、外部信号送出スイ
ッチ３と全接続し、制御回路ｌの出力をスイッチ回路４
に接続している。また、保留音送出回路５と外部入力信
号送出回路６の出力を、スイッチ回Ｆ＠４’に介して増
幅器７０入力に接続している。増幅器７の出力は整流ダ
イオードブリッヂ回路８？介して１回線１，１−Ｔ、２
間に接続される。A hold switch 2 and an external signal sending switch 3 are all connected to the control circuit 1, and the output of the control circuit 1 is connected to the switch circuit 4.
is connected to. Further, the outputs of the held music sending circuit 5 and the external input signal sending circuit 6 are connected to the input of the amplifier 70 via the switch circuit F@4'. The output of the amplifier 7 is a rectifier diode bridge circuit 8? via 1 line 1, 1-T, 2
connected between.
次に動作について説明する。Next, the operation will be explained.
保留スイッチ２を押下すると制御回路１は、スイッチ回
路４に対し制御信号を送出し、保留音送出回路５の出力
は増幅器７の入力に接続され、保留音が回線に送出され
る。一方、外部信号送出スイッチ３を押下すると、制御
回路１は、スイッチ回路４に対し外部入力信号送出回路
６の出力を増幅器７の入力に接続する制御信号を送出し
、これにより、外部入力信号が回線に送出される。When the hold switch 2 is pressed, the control circuit 1 sends a control signal to the switch circuit 4, and the output of the hold music sending circuit 5 is connected to the input of the amplifier 7, and the hold music is sent to the line. On the other hand, when the external signal sending switch 3 is pressed, the control circuit 1 sends a control signal to the switch circuit 4 to connect the output of the external input signal sending circuit 6 to the input of the amplifier 7. sent to the line.
したがって、保留音送出中に外部入力信号があったとし
てもラインに外部入力信号は送出されない。Therefore, even if an external input signal is present during transmission of the hold music, no external input signal is transmitted to the line.
（発明の効果）
以上、説明したように本発明は、保留音送出と外部入力
信号送出を、スイッチにより選択するように構成されて
いるので送出しようとする信号を明瞭にできる効果があ
る。(Effects of the Invention) As described above, the present invention is configured such that holding music transmission and external input signal transmission are selected by a switch, and therefore has the advantage that the signal to be transmitted can be made clear.
第１図は本発明による電話機回路の実施例を示す回路図
である。FIG. 1 is a circuit diagram showing an embodiment of a telephone circuit according to the present invention.
Claims (1)
音送出回路の出力と前記外部入力信号送出回路の出力と
を切替えるスイッチ回路と、保留スイッチと、外部入力
信号送出スイッチと、前記保留スイッチのオン状態を検
出したときは前記保留音送出回路出力を選択し、前記外
部入力信号スイッチのオン状態を検出したときは前記外
部信号送出回路出力を選択するように前記スイッチ回路
を制御し、選択した出力をラインに出力させる制御回路
とを含むことを特徴とする電話機回路。A held music sending circuit, an external input signal sending circuit, a switch circuit that switches between the output of the held music sending circuit and the output of the external input signal sending circuit, a hold switch, an external input signal sending switch, and the hold switch. When an on state of the external input signal switch is detected, the output of the held music sending circuit is selected, and when an on state of the external input signal switch is detected, the output of the external signal sending circuit is selected. and a control circuit for outputting the output to a line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4400487A JPS63209351A (en) | 1987-02-26 | 1987-02-26 | Telephone set circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4400487A JPS63209351A (en) | 1987-02-26 | 1987-02-26 | Telephone set circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63209351A true JPS63209351A (en) | 1988-08-30 |
Family
ID=12679558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4400487A Pending JPS63209351A (en) | 1987-02-26 | 1987-02-26 | Telephone set circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63209351A (en) |
-
1987
- 1987-02-26 JP JP4400487A patent/JPS63209351A/en active Pending
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