JPS61124145U - - Google Patents
Info
- Publication number
- JPS61124145U JPS61124145U JP735885U JP735885U JPS61124145U JP S61124145 U JPS61124145 U JP S61124145U JP 735885 U JP735885 U JP 735885U JP 735885 U JP735885 U JP 735885U JP S61124145 U JPS61124145 U JP S61124145U
- Authority
- JP
- Japan
- Prior art keywords
- transmitter
- transmitting circuit
- frequency characteristic
- equalizer
- telephone coupler
- 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
- 238000010586 diagram Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
Landscapes
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Description
図は本考案の実施例を示し、第1図は送信回路
のブロツク図、第2図は送話器の周波数特性を示
す図、第3図は等化器の回路図である。
SD……送信データ信号、MDM……MODE
M(変復調器)、A,A11,A12……差動増
幅器、EQ……等化器(周波数特性等化器)、S
W……スイツチ、TA……送信増幅器、SP……
スピーカ、T……送話器。
The figures show an embodiment of the present invention; FIG. 1 is a block diagram of a transmitting circuit, FIG. 2 is a diagram showing frequency characteristics of a transmitter, and FIG. 3 is a circuit diagram of an equalizer. SD...Transmission data signal, MDM...MODE
M (modulator/demodulator), A, A 11 , A 12 ... Differential amplifier, EQ ... Equalizer (frequency characteristic equalizer), S
W...Switch, TA...Transmission amplifier, SP...
Speaker, T...transmitter.
Claims (1)
送話器の周波数特性に応じた特性の周波数特性等
化器と、該周波数特性等化器を前記送話器に応じ
て前記送信回路中へ挿入するスイツチとを備えた
ことを特徴とするテレホンカプラ。 In a transmitting circuit of a telephone coupler, a frequency characteristic equalizer having characteristics corresponding to the frequency characteristics of an opposing transmitter, and a switch for inserting the frequency characteristic equalizer into the transmitting circuit according to the transmitter. A telephone coupler characterized by being equipped with.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP735885U JPS61124145U (en) | 1985-01-24 | 1985-01-24 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP735885U JPS61124145U (en) | 1985-01-24 | 1985-01-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS61124145U true JPS61124145U (en) | 1986-08-05 |
Family
ID=30485637
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP735885U Pending JPS61124145U (en) | 1985-01-24 | 1985-01-24 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS61124145U (en) |
-
1985
- 1985-01-24 JP JP735885U patent/JPS61124145U/ja active Pending
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