JPH03101043U - - Google Patents
Info
- Publication number
- JPH03101043U JPH03101043U JP963690U JP963690U JPH03101043U JP H03101043 U JPH03101043 U JP H03101043U JP 963690 U JP963690 U JP 963690U JP 963690 U JP963690 U JP 963690U JP H03101043 U JPH03101043 U JP H03101043U
- Authority
- JP
- Japan
- Prior art keywords
- received
- pulse signal
- amplitude
- input terminal
- given
- 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
- 239000000284 extract Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Dc Digital Transmission (AREA)
- Manipulation Of Pulses (AREA)
Description
第１図はこの考案の一実施例を示すブロツク図
、第２図はその動作を説明するための波形図、第
３図および第４図はこの考案の変形実施例を示す
ブロツク図、第５図は従来の技術を説明するため
のブロツク図である。
１……演算増幅器、２……可変直流電圧源、６
，７……論理反転検出器、８……表示器。
FIG. 1 is a block diagram showing an embodiment of this invention, FIG. 2 is a waveform diagram for explaining its operation, FIGS. 3 and 4 are block diagrams showing a modified embodiment of this invention, and FIG. The figure is a block diagram for explaining the conventional technology. 1... operational amplifier, 2... variable DC voltage source, 6
, 7...Logic inversion detector, 8... Display device.
Claims (1)
えられ、他方の入力端子に可変直流電圧源から可
変しきい値電圧を与えられ、可変しきい値電圧を
受信すべきパルス信号の振幅の範囲内に設定する
ことによつて受信すべきパルス信号を取り出す演
算増幅器と、 Ｂ この演算増幅器の出力側に設けられ、演算増
幅器の出力信号の論理が所定時間の範囲内におい
て繰り返し反転するか否かを検出する論理反転検
出器と、 Ｃ この論理反転検出器の検出出力によつて上記
演算増幅器に与える可変しきい値電圧が適正値に
あるか否かを表示する表示器と、 によつて構成したパルス受信回路。[Claims for Utility Model Registration] A. A pulse signal to be received is given to one input terminal, a variable threshold voltage is given from a variable DC voltage source to the other input terminal, and the variable threshold voltage is received. an operational amplifier that extracts the pulse signal to be received by setting the amplitude within the range of the amplitude of the pulse signal to be received; a logic inversion detector that detects whether or not the logic inversion is repeatedly inverted; A pulse receiving circuit consisting of a receiver and a pulse receiving circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP963690U JPH03101043U (en) | 1990-02-02 | 1990-02-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP963690U JPH03101043U (en) | 1990-02-02 | 1990-02-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03101043U true JPH03101043U (en) | 1991-10-22 |
Family
ID=31513225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP963690U Pending JPH03101043U (en) | 1990-02-02 | 1990-02-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03101043U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006153412A (en) * | 2004-12-01 | 2006-06-15 | Kawai Musical Instr Mfg Co Ltd | Ventilation system for soundproof chamber |
-
1990
- 1990-02-02 JP JP963690U patent/JPH03101043U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006153412A (en) * | 2004-12-01 | 2006-06-15 | Kawai Musical Instr Mfg Co Ltd | Ventilation system for soundproof chamber |
| JP4630650B2 (en) * | 2004-12-01 | 2011-02-09 | 株式会社河合楽器製作所 | Soundproof room ventilation system |
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