KR970029322A - Electronic bell with comparator - Google Patents
Electronic bell with comparator Download PDFInfo
- Publication number
- KR970029322A KR970029322A KR1019950040403A KR19950040403A KR970029322A KR 970029322 A KR970029322 A KR 970029322A KR 1019950040403 A KR1019950040403 A KR 1019950040403A KR 19950040403 A KR19950040403 A KR 19950040403A KR 970029322 A KR970029322 A KR 970029322A
- Authority
- KR
- South Korea
- Prior art keywords
- bell
- buzzer
- comparator
- sound
- timer
- Prior art date
Links
Landscapes
- Measurement Of Predetermined Time Intervals (AREA)
- Electronic Switches (AREA)
Abstract
본 발명은 비교기를 이용한 전자식 벨에 관한 것으로, 종래 기계식 타이머 벨을 제품에 적용할 경우 수급이 어려우며 단가가 상승하는 경향이 있으며, 마이크로 컴퓨터식 타이머 벨을 사용하는 경우에는 프로그램과 그 주변회로를 필요로 하여 구성상 복잡한 문제점이 있고, 종래기술 가운데 전자식 벨이 있는데, 이는 기계식으로 간단한 회로와 부저를 사용하여 기계식 타이머 벨의 소리를 내도록 하는 방식이나 그 부저의 소리가 처음에는 높았다가 점차로 낮아지며 길게 늘어지는 문제점이 있다.The present invention relates to an electronic bell using a comparator. When the conventional mechanical timer bell is applied to a product, supply and demand are difficult and the unit price tends to increase. When a microcomputer timer bell is used, a program and a peripheral circuit are required. There is a complicated problem in configuration, there is an electronic bell in the prior art, which is a mechanical way to make a mechanical timer bell sound using a simple circuit and a buzzer or the sound of the buzzer at first is gradually lowered and then elongated There is a problem losing.
따라서, 본 발명은 종래 전자식 벨의 음이 길게 늘어지는 것을 방지하여 기계식 차인벨의 음과 유사하도록 한 비교기를 이용한 진자식 벨을 제공하여 제품에 적용할 경우 기계식 타이머 벨의 단가 상승과 수급의 어려움을 해소토록 한다.Therefore, the present invention provides a pendulum bell using a comparator that prevents the sound of a conventional electronic bell from elongating and resembles the sound of a mechanical bell. To solve the problem.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.
제1도는 종래의 기계식 타이머 벨 회로도.1 is a conventional mechanical timer bell circuit diagram.
제2도는 본 발명의 비교기를 이용한 전자식 벨 회로도.2 is an electronic bell circuit diagram using the comparator of the present invention.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950040403A KR0176858B1 (en) | 1995-11-09 | 1995-11-09 | Electronic bell with comparator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950040403A KR0176858B1 (en) | 1995-11-09 | 1995-11-09 | Electronic bell with comparator |
Publications (2)
Publication Number | Publication Date |
---|---|
KR970029322A true KR970029322A (en) | 1997-06-26 |
KR0176858B1 KR0176858B1 (en) | 1999-04-01 |
Family
ID=19433480
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019950040403A KR0176858B1 (en) | 1995-11-09 | 1995-11-09 | Electronic bell with comparator |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR0176858B1 (en) |
-
1995
- 1995-11-09 KR KR1019950040403A patent/KR0176858B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR0176858B1 (en) | 1999-04-01 |
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Legal Events
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E902 | Notification of reason for refusal | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant | ||
FPAY | Annual fee payment |
Payment date: 20021115 Year of fee payment: 5 |
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LAPS | Lapse due to unpaid annual fee |