KR910005003Y1 - 로우컬과 시크(스캔) 자동 선국장치 - Google Patents
로우컬과 시크(스캔) 자동 선국장치 Download PDFInfo
- Publication number
- KR910005003Y1 KR910005003Y1 KR2019880003087U KR880003087U KR910005003Y1 KR 910005003 Y1 KR910005003 Y1 KR 910005003Y1 KR 2019880003087 U KR2019880003087 U KR 2019880003087U KR 880003087 U KR880003087 U KR 880003087U KR 910005003 Y1 KR910005003 Y1 KR 910005003Y1
- Authority
- KR
- South Korea
- Prior art keywords
- signal
- intermediate frequency
- scan
- seek
- low
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
Abstract
Description
Claims (1)
- 안테나(ANT)를 통해 입력된 방송신호를 동조시키는 동조코일(L1, L2)과 콘덴서(C1, C2), 동조된 무선신호를 증폭하는 증폭기(RF), 국부발진기(OSC)발진신호와 증폭기(RF)의 신호를 혼합하는 혼합기(MIX), 상기의 혼합된 신호중 중간주파수 신호를 발생하는 중간주파 트랜스(IFT) 및 중간주파수 신호를 증폭하는 중간주파증폭기(IF)와, 교통방송국감지기(2) 및 증폭된 중간주파수신호를 검파하는 검파기(1)로된 집적회로(IC1)를 구비한 카스테레오의 로우컬과 시크(스캔)자동선국장치에 있어서; 교통방송국과 교통방송선국시 작동하는 스위치(SW1)와; 상기 스위치(SW1)의 작동시 디지틀튜너(10)에 방송선국용 신호를 제공하기 위한 스위칭 트랜지스터(Q2)와; 상기의 방송국 선국시에는 하이상태의 신호를 발생하며 양호한 방송선국시에는 리셋되는 플립플롭(FF1)과; 상기의 방송국 선국시 상기 플립플롭(FF1)에서 출력되는 하이상태의 신호에 의해 수신상태가 양호한 방송만을 검출하기 위한 스위칭 트랜지스터(Q1)로 수성시켜서 됨을 특징으로 하는 로우컬과 시크(스캔) 자동선국장치.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019880003087U KR910005003Y1 (ko) | 1988-03-08 | 1988-03-08 | 로우컬과 시크(스캔) 자동 선국장치 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019880003087U KR910005003Y1 (ko) | 1988-03-08 | 1988-03-08 | 로우컬과 시크(스캔) 자동 선국장치 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR890020167U KR890020167U (ko) | 1989-10-05 |
KR910005003Y1 true KR910005003Y1 (ko) | 1991-07-12 |
Family
ID=19273021
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR2019880003087U Expired KR910005003Y1 (ko) | 1988-03-08 | 1988-03-08 | 로우컬과 시크(스캔) 자동 선국장치 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR910005003Y1 (ko) |
-
1988
- 1988-03-08 KR KR2019880003087U patent/KR910005003Y1/ko not_active Expired
Also Published As
Publication number | Publication date |
---|---|
KR890020167U (ko) | 1989-10-05 |
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Legal Events
Date | Code | Title | Description |
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A201 | Request for examination | ||
UA0108 | Application for utility model registration |
Comment text: Application for Utility Model Registration Patent event code: UA01011R08D Patent event date: 19880308 |
|
UA0201 | Request for examination |
Patent event date: 19880308 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: 19910330 |
|
UG1604 | Publication of application |
Patent event code: UG16041S01I Comment text: Decision on Publication of Application Patent event date: 19910614 |
|
E701 | Decision to grant or registration of patent right | ||
UE0701 | Decision of registration |
Patent event date: 19911015 Comment text: Decision to Grant Registration Patent event code: UE07011S01D |
|
REGI | Registration of establishment | ||
UR0701 | Registration of establishment |
Patent event date: 19920109 Patent event code: UR07011E01D Comment text: Registration of Establishment |
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UR1002 | Payment of registration fee |
Start annual number: 1 End annual number: 3 Payment date: 19920109 |
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UR1001 | Payment of annual fee |
Payment date: 19940628 Start annual number: 4 End annual number: 4 |
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UR1001 | Payment of annual fee |
Payment date: 19950529 Start annual number: 5 End annual number: 5 |
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UR1001 | Payment of annual fee |
Payment date: 19960627 Start annual number: 6 End annual number: 6 |
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UR1001 | Payment of annual fee |
Payment date: 19961231 Start annual number: 7 End annual number: 7 |
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UR1001 | Payment of annual fee |
Payment date: 19980629 Start annual number: 8 End annual number: 8 |
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UR1001 | Payment of annual fee |
Payment date: 19990108 Start annual number: 9 End annual number: 9 |
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UR1001 | Payment of annual fee |
Payment date: 20000629 Start annual number: 10 End annual number: 10 |
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FPAY | Annual fee payment |
Payment date: 20010629 Year of fee payment: 11 |
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UR1001 | Payment of annual fee |
Payment date: 20010629 Start annual number: 11 End annual number: 11 |
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LAPS | Lapse due to unpaid annual fee | ||
UC1903 | Unpaid annual fee |