JPS6385949U - - Google Patents
Info
- Publication number
- JPS6385949U JPS6385949U JP1986178232U JP17823286U JPS6385949U JP S6385949 U JPS6385949 U JP S6385949U JP 1986178232 U JP1986178232 U JP 1986178232U JP 17823286 U JP17823286 U JP 17823286U JP S6385949 U JPS6385949 U JP S6385949U
- Authority
- JP
- Japan
- Prior art keywords
- modulation
- data transmission
- automatic gain
- signal
- gain control
- 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
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Maintenance And Management Of Digital Transmission (AREA)
Description
第１図は本考案のデータ伝送用変復調装置の回
路構成を示すブロツク図、第２図は従来のデータ
伝送用変復調装置の回路構成を示すブロツク図で
ある。
１……入力端子、２……出力端子、３……伝送
路端子、４……送信器、５，５０……受信器、６
……スピーカ、７，１０３……増幅器、８，９…
…中継トランス、１０……電話回路、１１，１０
０，１０１……切替器、１０２……自動利得制御
回路。
FIG. 1 is a block diagram showing the circuit configuration of a data transmission modulation/demodulation device of the present invention, and FIG. 2 is a block diagram showing the circuit configuration of a conventional data transmission modulation/demodulation device. 1...Input terminal, 2...Output terminal, 3...Transmission line terminal, 4...Transmitter, 5, 50...Receiver, 6
...Speaker, 7,103...Amplifier, 8,9...
...Relay transformer, 10...Telephone circuit, 11,10
0,101...Switcher, 102...Automatic gain control circuit.
Claims (1)
する自動利得制御回路を持つ受信器と、網制御信
号を増幅し、音に変換するモニタ回路とを有し、
公衆通信回線によりデータ伝送を行うデータ伝送
用変復調装置において、 相手局との接続動作中は前記網制御信号を前記
自動利得制御回路を通して前記モニタ回路に入力
する信号切替手段を有することを特徴とするデー
タ伝送用変復調装置。[Claims for Utility Model Registration] A receiver having means for automatic transmission, an automatic gain control circuit for controlling the amplitude of the received signal, and a monitor circuit for amplifying the network control signal and converting it into sound,
A data transmission modulation/demodulation device that transmits data via a public communication line, characterized by comprising signal switching means for inputting the network control signal to the monitor circuit through the automatic gain control circuit during a connection operation with a partner station. Modulation and demodulation equipment for data transmission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986178232U JPS6385949U (en) | 1986-11-21 | 1986-11-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986178232U JPS6385949U (en) | 1986-11-21 | 1986-11-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6385949U true JPS6385949U (en) | 1988-06-04 |
Family
ID=31120174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986178232U Pending JPS6385949U (en) | 1986-11-21 | 1986-11-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6385949U (en) |
-
1986
- 1986-11-21 JP JP1986178232U patent/JPS6385949U/ja active Pending
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