JPH0221956U - - Google Patents
Info
- Publication number
- JPH0221956U JPH0221956U JP9974988U JP9974988U JPH0221956U JP H0221956 U JPH0221956 U JP H0221956U JP 9974988 U JP9974988 U JP 9974988U JP 9974988 U JP9974988 U JP 9974988U JP H0221956 U JPH0221956 U JP H0221956U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- level
- adjustment
- communication terminal
- outputs
- 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
- 230000003321 amplification Effects 0.000 claims description 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 3
- 238000013459 approach Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
Landscapes
- Facsimiles In General (AREA)
- Control Of Amplification And Gain Control (AREA)
Description
第１図は本考案に係る通信端末機器の送出レベ
ル調整装置の一実施例を示すブロツク図、第２図
は従来の送出レベル調整装置を有する通信端末機
器の概略を示すブロツク図である。
１……増幅制御回路、５……変換回路、７，９
……通信端末機器本体（フアクシミリ通信機器本
体）、１１……調整信号出力回路（比較回路）、
１３……Ａ／Ｄコンバータ、１５……オペアンプ
、１７……可変増幅回路、ＳＷ……デイツプスイ
ツチ。
FIG. 1 is a block diagram showing an embodiment of a transmission level adjustment device for communication terminal equipment according to the present invention, and FIG. 2 is a block diagram schematically showing a communication terminal equipment having a conventional transmission level adjustment device. 1... Amplification control circuit, 5... Conversion circuit, 7, 9
...Communication terminal equipment main body (facsimile communication equipment main body), 11...Adjustment signal output circuit (comparison circuit),
13... A/D converter, 15... operational amplifier, 17... variable amplifier circuit, SW... deep switch.
Claims (1)
からの受信信号の信号レベルに応じた調整信号を
出力する調整信号出力回路と、 前記通信端末機器本体側からの送信信号を前記
調整信号によつて所定の基準送出レベルに近づけ
るように増幅度を変えて前記公衆伝送回線側へ出
力する可変増幅回路と、 を具備してなることを特徴とする通信端末機器の
送出レベル調整装置。[Claims for Utility Model Registration] An adjustment signal output circuit that outputs an adjustment signal according to the signal level of a received signal from a public transmission line that is received by the communication terminal device itself, and transmission from the communication terminal device main body side. A variable amplification circuit that outputs a signal to the public transmission line side by changing the amplification degree so that the signal approaches a predetermined reference transmission level using the adjustment signal. Level adjustment device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9974988U JPH0221956U (en) | 1988-07-29 | 1988-07-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9974988U JPH0221956U (en) | 1988-07-29 | 1988-07-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0221956U true JPH0221956U (en) | 1990-02-14 |
Family
ID=31327198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9974988U Pending JPH0221956U (en) | 1988-07-29 | 1988-07-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0221956U (en) |
-
1988
- 1988-07-29 JP JP9974988U patent/JPH0221956U/ja active Pending