JPS5950150U - Carrier detection delay circuit in acoustic coupling device - Google Patents
Carrier detection delay circuit in acoustic coupling deviceInfo
- Publication number
- JPS5950150U JPS5950150U JP14438182U JP14438182U JPS5950150U JP S5950150 U JPS5950150 U JP S5950150U JP 14438182 U JP14438182 U JP 14438182U JP 14438182 U JP14438182 U JP 14438182U JP S5950150 U JPS5950150 U JP S5950150U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- carrier detection
- output
- coupling device
- acoustic coupling
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図はキャリヤ検出回路のブロック図、第２図は第１
図における各部の波形を示すタイミングチャート、第３
図は本考案の実施例を示すブロック図、第４図は第３図
における各部の波形を示すタイミングチャートである。
Ｇ、、 Ｇ２・・・ＥＸＯＲ（排他的論理和）ゲート、
Ｇ３・・・ＯＲゲート、Ｒ１−Ｒ４・・・抵抗器、Ｃ１
，Ｃ２・・・コンデンサ、５Ｄ・・・ダイオード、ＩＮ
１〜■Ｎ４・・・インバータ、ＣＡ・・・受信キャリヤ
、ＴＤ・・・パルス信号、ＣＤ・・・キャリヤ検出出力
。Figure 1 is a block diagram of the carrier detection circuit, and Figure 2 is the block diagram of the carrier detection circuit.
Timing chart showing the waveforms of each part in the figure, Part 3
The figure is a block diagram showing an embodiment of the present invention, and FIG. 4 is a timing chart showing waveforms of various parts in FIG. G,, G2...EXOR (exclusive OR) gate,
G3...OR gate, R1-R4...Resistor, C1
, C2... Capacitor, 5D... Diode, IN
1~■N4...Inverter, CA...Receiving carrier, TD...Pulse signal, CD...Carrier detection output.
Claims (1)
とし、該パルス信号が所定時間連続したか否かを監視し
てキャリヤ検出出力を送出する集積回路化されたキャリ
ヤ検出回路を備え、前記キャリヤ検出出力の送出を前提
として通信動作を行なう音響結合装置において、前記キ
ャリヤ検出出力に応じて前記パルス信号を反転する第１
のゲート回路と、該ゲート回路の反転出力に応じて積分
動作を行なう積分回路と、該積分回路の出力と前記第１
のゲート回路の出力との論理和出力を生じ該出力を前記
キャリヤ検出回路の入力パルス信号として送出する第２
のゲート回路とを設けたことを特徴とする音響結合装置
におけるキャリヤ検出遅延回路。The carrier detection circuit is equipped with an integrated circuit carrier detection circuit which inputs a periodic pulse signal obtained by shaping the waveform of a received carrier, monitors whether the pulse signal continues for a predetermined period of time, and sends out a carrier detection output. In an acoustic coupling device that performs a communication operation on the premise of transmitting an output, a first inverting the pulse signal according to the carrier detection output;
a gate circuit, an integrating circuit that performs an integrating operation according to the inverted output of the gate circuit, and an output of the integrating circuit and the first gate circuit.
a second gate circuit which produces an OR output with the output of the gate circuit and sends the output as an input pulse signal to the carrier detection circuit;
A carrier detection delay circuit in an acoustic coupling device, characterized in that the carrier detection delay circuit is provided with a gate circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14438182U JPS5950150U (en) | 1982-09-24 | 1982-09-24 | Carrier detection delay circuit in acoustic coupling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14438182U JPS5950150U (en) | 1982-09-24 | 1982-09-24 | Carrier detection delay circuit in acoustic coupling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5950150U true JPS5950150U (en) | 1984-04-03 |
Family
ID=30321986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14438182U Pending JPS5950150U (en) | 1982-09-24 | 1982-09-24 | Carrier detection delay circuit in acoustic coupling device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5950150U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50156842A (en) * | 1974-06-06 | 1975-12-18 | ||
| JPS5625867A (en) * | 1979-08-10 | 1981-03-12 | Hitachi Ltd | Information terminal unit with automatic line disconnecting function |
-
1982
- 1982-09-24 JP JP14438182U patent/JPS5950150U/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50156842A (en) * | 1974-06-06 | 1975-12-18 | ||
| JPS5625867A (en) * | 1979-08-10 | 1981-03-12 | Hitachi Ltd | Information terminal unit with automatic line disconnecting function |
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