JPS6232387U - - Google Patents
Info
- Publication number
- JPS6232387U JPS6232387U JP12286485U JP12286485U JPS6232387U JP S6232387 U JPS6232387 U JP S6232387U JP 12286485 U JP12286485 U JP 12286485U JP 12286485 U JP12286485 U JP 12286485U JP S6232387 U JPS6232387 U JP S6232387U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- pulse signal
- outputs
- triangular wave
- passes
- 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
- 238000007493 shaping process Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
Landscapes
- Burglar Alarm Systems (AREA)
Description
第１図は本考案実施例のブロツク図、第２図は
具体的回路例である。第３図は、動作説明のため
のタイムチヤートである。第４図は、波形整形回
路の動作説明用の波形である。
１……投光素子、２……発振回路、３……受光
素子、４……アンプ、５……波形整形回路、６…
…三角波変換回路、７……単安定マルチバイブレ
ータ、８……積分回路、９……レベル検知回路、
１０……スイツチング回路。
FIG. 1 is a block diagram of an embodiment of the present invention, and FIG. 2 is a concrete example of the circuit. FIG. 3 is a time chart for explaining the operation. FIG. 4 shows waveforms for explaining the operation of the waveform shaping circuit. DESCRIPTION OF SYMBOLS 1... Light emitting element, 2... Oscillation circuit, 3... Light receiving element, 4... Amplifier, 5... Waveform shaping circuit, 6...
... Triangular wave conversion circuit, 7 ... Monostable multivibrator, 8 ... Integrating circuit, 9 ... Level detection circuit,
10...Switching circuit.
Claims (1)
形整形回路と、一定周期以下の繰り返しパルス信
号によつてはじめてスレツシユレベルを越える三
角波を出力する三角波変換回路と、前記三角波の
うちスレツシユレベルを越えたことにより作動す
る単安定マルチバイブレータと、積分回路とレベ
ル検知回路とを備え、一定レベル以上のパルス列
であつて、その繰り返し周期が特定の範囲にある
ようなパルス信号が入力されたときに、出力を出
すことを特徴とする赤外線防犯警報装置の信号処
理回路。 A waveform shaping circuit that passes a pulse signal having a predetermined peak value or more; a triangular wave converting circuit that outputs a triangular wave that exceeds a threshold level only when a pulse signal having a repeating cycle that is less than a predetermined period passes; It is equipped with a monostable multivibrator that is activated by the vibration, an integrating circuit, and a level detection circuit, and when a pulse signal that is a pulse train of a certain level or higher and whose repetition period is within a certain range is input, A signal processing circuit for an infrared security alarm device that outputs an output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12286485U JPS6232387U (en) | 1985-08-09 | 1985-08-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12286485U JPS6232387U (en) | 1985-08-09 | 1985-08-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6232387U true JPS6232387U (en) | 1987-02-26 |
Family
ID=31013453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12286485U Pending JPS6232387U (en) | 1985-08-09 | 1985-08-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6232387U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4983472A (en) * | 1972-12-12 | 1974-08-10 |
-
1985
- 1985-08-09 JP JP12286485U patent/JPS6232387U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4983472A (en) * | 1972-12-12 | 1974-08-10 |
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