KR900002001Y1 - 비상 경보 방송시 스위칭 회로 - Google Patents
비상 경보 방송시 스위칭 회로 Download PDFInfo
- Publication number
- KR900002001Y1 KR900002001Y1 KR2019860018120U KR860018120U KR900002001Y1 KR 900002001 Y1 KR900002001 Y1 KR 900002001Y1 KR 2019860018120 U KR2019860018120 U KR 2019860018120U KR 860018120 U KR860018120 U KR 860018120U KR 900002001 Y1 KR900002001 Y1 KR 900002001Y1
- Authority
- KR
- South Korea
- Prior art keywords
- transistor
- broadcast
- emergency alarm
- tuner
- emergency
- 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.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B27/00—Alarm systems in which the alarm condition is signalled from a central station to a plurality of substations
- G08B27/008—Alarm systems in which the alarm condition is signalled from a central station to a plurality of substations with transmission via TV or radio broadcast
Landscapes
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Circuits Of Receivers In General (AREA)
Abstract
Description
Claims (1)
- FM 튜너(1)와 AM튜너(2) 및 비상경보 방송용 튜너(3)의 방송 신호를 상호역구동하는 트랜지스터(Q2)(Q3)를 통하여 메인앰프(MA)에 인가되게 구성하고 상기 비상경보 방송용 튜너(3)에서 수신된 비상경보 방송 신호는 트랜지스터(Q1)에 인가되어 증폭되고 다이오드(D1)(D2)로 검파된 후 리미터다이오드(D3)(D4)를 통하여 트랜지스터(Q5)(Q6)를 구동시키게 감지부(4)를 구성하여 상기 트랜지스터(Q6)의 구동에 따라 트랜지스터(Q2)(Q3)(Q4)(Q7)의 구동이 선택되게 스위칭부(5)를 구성시킨 비상경보 방송시 스위칭회로.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019860018120U KR900002001Y1 (ko) | 1986-11-21 | 1986-11-21 | 비상 경보 방송시 스위칭 회로 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019860018120U KR900002001Y1 (ko) | 1986-11-21 | 1986-11-21 | 비상 경보 방송시 스위칭 회로 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR880010387U KR880010387U (ko) | 1988-07-27 |
KR900002001Y1 true KR900002001Y1 (ko) | 1990-03-12 |
Family
ID=19257244
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR2019860018120U Expired KR900002001Y1 (ko) | 1986-11-21 | 1986-11-21 | 비상 경보 방송시 스위칭 회로 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR900002001Y1 (ko) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20040032790A (ko) * | 2002-10-09 | 2004-04-17 | 손지혜 | 경보방송용 텔레비전 시스템과 그 시스템에서의 경보방송전파방법 |
-
1986
- 1986-11-21 KR KR2019860018120U patent/KR900002001Y1/ko not_active Expired
Also Published As
Publication number | Publication date |
---|---|
KR880010387U (ko) | 1988-07-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
UA0108 | Application for utility model registration |
Comment text: Application for Utility Model Registration Patent event code: UA01011R08D Patent event date: 19861121 |
|
UA0201 | Request for examination |
Patent event date: 19861121 Patent event code: UA02012R01D Comment text: Request for Examination of Application |
|
UG1501 | Laying open of application | ||
E902 | Notification of reason for refusal | ||
UE0902 | Notice of grounds for rejection |
Comment text: Notification of reason for refusal Patent event code: UE09021S01D Patent event date: 19890911 |
|
UG1604 | Publication of application |
Patent event code: UG16041S01I Comment text: Decision on Publication of Application Patent event date: 19900210 |
|
E701 | Decision to grant or registration of patent right | ||
UE0701 | Decision of registration |
Patent event date: 19900530 Comment text: Decision to Grant Registration Patent event code: UE07011S01D |
|
REGI | Registration of establishment | ||
UR0701 | Registration of establishment |
Patent event date: 19900903 Patent event code: UR07011E01D Comment text: Registration of Establishment |
|
UR1002 | Payment of registration fee |
Start annual number: 1 End annual number: 3 Payment date: 19900903 |
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UR1001 | Payment of annual fee |
Payment date: 19930106 Start annual number: 4 End annual number: 4 |
|
UR1001 | Payment of annual fee |
Payment date: 19940228 Start annual number: 5 End annual number: 5 |
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UR1001 | Payment of annual fee |
Payment date: 19950228 Start annual number: 6 End annual number: 6 |
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UR1001 | Payment of annual fee |
Payment date: 19960229 Start annual number: 7 End annual number: 7 |
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UR1001 | Payment of annual fee |
Payment date: 19961231 Start annual number: 8 End annual number: 8 |
|
FPAY | Annual fee payment |
Payment date: 19980226 Year of fee payment: 9 |
|
UR1001 | Payment of annual fee |
Payment date: 19980226 Start annual number: 9 End annual number: 9 |
|
LAPS | Lapse due to unpaid annual fee | ||
UC1903 | Unpaid annual fee |