JPS5967058U - Carrier detection circuit - Google Patents
Carrier detection circuitInfo
- Publication number
- JPS5967058U JPS5967058U JP16173382U JP16173382U JPS5967058U JP S5967058 U JPS5967058 U JP S5967058U JP 16173382 U JP16173382 U JP 16173382U JP 16173382 U JP16173382 U JP 16173382U JP S5967058 U JPS5967058 U JP S5967058U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- detection circuit
- carrier detection
- time constant
- low
- 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.)
- Granted
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図は従来のキャリア検出回路の構成図、第２図、第
３図はその動作説明図、第４図は本考案キャリア検出回
路の一実施例を示す構成図、第５図は同じくその動作説
明図である。
１・・・整流回路、２・・・ピーク値平滑回路、３・・
・低域ろ波器、４・・・微分回路、５・・・シュミット
トリガ判定回路。 、FIG. 1 is a configuration diagram of a conventional carrier detection circuit, FIGS. 2 and 3 are diagrams explaining its operation, FIG. 4 is a configuration diagram showing an embodiment of the carrier detection circuit of the present invention, and FIG. It is an operation explanatory diagram. 1... Rectifier circuit, 2... Peak value smoothing circuit, 3...
-Low-pass filter, 4... Differential circuit, 5... Schmitt trigger judgment circuit. ,
Claims (1)
り構成されるキャリア検出回路において、低域ろ波器の
前にピーク値に対しては短かい時定数で、また低レベル
時は長い時定数で積分されるピーク値平滑回路を、また
電圧判定回路の前にキャリア受信の立上りに対して微分
効果を大きくする微分回路を接続することを特徴とする
キャリア検出回路。In a carrier detection circuit consisting of a rectifier circuit followed by a low-pass filter and a voltage determination circuit, a short time constant is used for peak values before the low-pass filter, and a long time constant is used for low levels. A carrier detection circuit characterized in that a peak value smoothing circuit that integrates with a time constant is connected, and a differentiation circuit that increases a differentiation effect with respect to the rising edge of carrier reception is connected before the voltage determination circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16173382U JPS5967058U (en) | 1982-10-27 | 1982-10-27 | Carrier detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16173382U JPS5967058U (en) | 1982-10-27 | 1982-10-27 | Carrier detection circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5967058U true JPS5967058U (en) | 1984-05-07 |
| JPH0110038Y2 JPH0110038Y2 (en) | 1989-03-22 |
Family
ID=30355350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16173382U Granted JPS5967058U (en) | 1982-10-27 | 1982-10-27 | Carrier detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5967058U (en) |
-
1982
- 1982-10-27 JP JP16173382U patent/JPS5967058U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0110038Y2 (en) | 1989-03-22 |
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