JPS6175667U - - Google Patents
Info
- Publication number
- JPS6175667U JPS6175667U JP16041084U JP16041084U JPS6175667U JP S6175667 U JPS6175667 U JP S6175667U JP 16041084 U JP16041084 U JP 16041084U JP 16041084 U JP16041084 U JP 16041084U JP S6175667 U JPS6175667 U JP S6175667U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- carrier
- received
- equal
- switches
- 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
- 239000007788 liquid Substances 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Description
第１図…この考案の実施例のブロツク図、第２
図…その動作説明図。
１，２…受信用フイルタ、３，４…フロントエ
ンド、５，６…デイテクター、７…パルス受信回
路、８…設定スイツチ、９…送信用フイルタ、１
０…変調回路、１１…周波数切換回路、１２…パ
ルス送信回路、１３…選択スイツチ、１４…音声
ミユート回路、１５…一斉呼びスイツチ。
Figure 1...Block diagram of an embodiment of this invention, Figure 2
Figure: An explanatory diagram of its operation. 1, 2... Reception filter, 3, 4... Front end, 5, 6... Detector, 7... Pulse receiving circuit, 8... Setting switch, 9... Transmission filter, 1
0...Modulation circuit, 11...Frequency switching circuit, 12...Pulse transmission circuit, 13...Select switch, 14...Audio mute circuit, 15...All call switch.
Claims (1)
切換えて送信する送信回路と、送信する搬送波を
呼び出す相手側のインターホンに固有の数に等し
い回数だけ切換えさせるパルス送信回路と、少な
くとも２個の受信回路と、音声出力回路に設けら
れ搬送波を受信したとき動作する音声ミユート回
路と、受信した搬送波の切換えられた回数が自己
に固有の数と等しいことを識別したとき音声ミユ
ート回路の動作を解除するパルス受信回路とを備
えたことを特徴とするＦＭ搬送式個別呼びインタ
ーホン。 A transmitting circuit that appropriately switches and transmits at least two carrier liquids having different frequencies, a pulse transmitting circuit that switches the carrier waves to be transmitted a number of times equal to the number specific to the intercom of the other party that calls, and at least two receiving circuits. , an audio mute circuit provided in the audio output circuit that operates when a carrier wave is received, and a pulse receiver that deactivates the audio mute circuit when it identifies that the number of times the received carrier wave has been switched is equal to its own unique number. An FM carrier type individual call intercom characterized by being equipped with a circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16041084U JPS6175667U (en) | 1984-10-25 | 1984-10-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16041084U JPS6175667U (en) | 1984-10-25 | 1984-10-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6175667U true JPS6175667U (en) | 1986-05-21 |
Family
ID=30718332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16041084U Pending JPS6175667U (en) | 1984-10-25 | 1984-10-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6175667U (en) |
-
1984
- 1984-10-25 JP JP16041084U patent/JPS6175667U/ja active Pending
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