JPS63157671U - - Google Patents
Info
- Publication number
- JPS63157671U JPS63157671U JP5074987U JP5074987U JPS63157671U JP S63157671 U JPS63157671 U JP S63157671U JP 5074987 U JP5074987 U JP 5074987U JP 5074987 U JP5074987 U JP 5074987U JP S63157671 U JPS63157671 U JP S63157671U
- Authority
- JP
- Japan
- Prior art keywords
- analog switch
- switch circuit
- circuit
- comparator
- rectified
- 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
- 230000005236 sound signal Effects 0.000 claims 1
- 238000001228 spectrum Methods 0.000 claims 1
- 230000001360 synchronised effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 1
Landscapes
- Control Of Amplification And Gain Control (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Description
第１図は本考案の一実施例の回路図、第２図は
従来技術の回路図、第３図は第２図のもののスイ
ツチング特性を示す波形図である。
１……バンドパスフイルタ、５……整流回路、
９……デコーダ、１２……コンパレータ回路、１
３……デイスプレイ、１５……アナログスイツチ
回路。
FIG. 1 is a circuit diagram of an embodiment of the present invention, FIG. 2 is a circuit diagram of a conventional technique, and FIG. 3 is a waveform diagram showing switching characteristics of the circuit shown in FIG. 1... Bandpass filter, 5... Rectifier circuit,
9...Decoder, 12...Comparator circuit, 1
3...Display, 15...Analog switch circuit.
Claims (1)
分割され整流された音声信号を、周波数軸と同期
したデコーダからのパルス信号によりスイツチン
グするアナログスイツチ回路を設け、該アナログ
スイツチ回路の出力側にレベル表示用のコンパレ
ータ回路を接続したことを特徴とするスペクトラ
ムアナライザ表示装置。 An analog switch circuit is provided that switches the audio signal divided into multiple frequency bands and rectified by a band pass filter using a pulse signal from a decoder synchronized with the frequency axis, and a comparator for level display is provided on the output side of the analog switch circuit. A spectrum analyzer display device characterized by a connected circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5074987U JPS63157671U (en) | 1987-04-03 | 1987-04-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5074987U JPS63157671U (en) | 1987-04-03 | 1987-04-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63157671U true JPS63157671U (en) | 1988-10-17 |
Family
ID=30874390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5074987U Pending JPS63157671U (en) | 1987-04-03 | 1987-04-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63157671U (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5614162A (en) * | 1979-07-17 | 1981-02-10 | Victor Co Of Japan Ltd | Spectrum display unit |
| JPS5635061B2 (en) * | 1975-05-31 | 1981-08-14 | ||
| JPS5722826B2 (en) * | 1979-06-04 | 1982-05-15 |
-
1987
- 1987-04-03 JP JP5074987U patent/JPS63157671U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5635061B2 (en) * | 1975-05-31 | 1981-08-14 | ||
| JPS5722826B2 (en) * | 1979-06-04 | 1982-05-15 | ||
| JPS5614162A (en) * | 1979-07-17 | 1981-02-10 | Victor Co Of Japan Ltd | Spectrum display unit |