KR930007373Y1 - 자동화질 개선 회로 - Google Patents
자동화질 개선 회로 Download PDFInfo
- Publication number
- KR930007373Y1 KR930007373Y1 KR2019910011417U KR910011417U KR930007373Y1 KR 930007373 Y1 KR930007373 Y1 KR 930007373Y1 KR 2019910011417 U KR2019910011417 U KR 2019910011417U KR 910011417 U KR910011417 U KR 910011417U KR 930007373 Y1 KR930007373 Y1 KR 930007373Y1
- Authority
- KR
- South Korea
- Prior art keywords
- synchronous
- peak value
- signal
- noise
- emphasis
- 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 - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/91—Television signal processing therefor
- H04N5/92—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
- H04N5/923—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback using preemphasis of the signal before modulation and deemphasis of the signal after demodulation
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/24—Signal processing not specific to the method of recording or reproducing; Circuits therefor for reducing noise
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/90—Tape-like record carriers
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Television Signal Processing For Recording (AREA)
Abstract
Description
Claims (1)
- 재생 비데오 신호의 동기 부분을 분리하는 동기 분리부(10)와, 상기 동기 분리부(10)의 동기 신호로 게이팅되어 동기 부분의 노이즈를 통과시키는 게이트 소자(20)와, 상기 게이트 소자(20)를 통과한 동기 부분의 노이즈를 증폭시키는 앰프(30)와, 상기 앰프(30)에서 증폭된 노이즈의 피크치를 검파하여 DC값으로 출력시키는 피크치 검파회로(40)와, 상기 피크치 검파회로(40)의 DC값에 따라 재생 신호 처리계의 디 엠퍼시스량을 제어하는 디 엠퍼시스 회로(50)로 구성된 자동화질 개선 회로.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019910011417U KR930007373Y1 (ko) | 1991-07-18 | 1991-07-18 | 자동화질 개선 회로 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019910011417U KR930007373Y1 (ko) | 1991-07-18 | 1991-07-18 | 자동화질 개선 회로 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR930003413U KR930003413U (ko) | 1993-02-26 |
KR930007373Y1 true KR930007373Y1 (ko) | 1993-10-25 |
Family
ID=19316826
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR2019910011417U Expired - Fee Related KR930007373Y1 (ko) | 1991-07-18 | 1991-07-18 | 자동화질 개선 회로 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR930007373Y1 (ko) |
-
1991
- 1991-07-18 KR KR2019910011417U patent/KR930007373Y1/ko not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
KR930003413U (ko) | 1993-02-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR930007373Y1 (ko) | 자동화질 개선 회로 | |
KR100230258B1 (ko) | 필터의 지연시간 및 흑백 반전을 개선한 비디오 기록매체 복사장치 | |
KR100195107B1 (ko) | 비디오 신호 더빙 기록 장치 | |
US5510853A (en) | Automatic gain control circuit for stabilizing the level of a reproduced color signal | |
KR940004080Y1 (ko) | Vcr 색신호 처리계의 노이즈 제거장치 | |
EP0462775B1 (en) | Signal reproducing apparatus | |
JPS6218673A (ja) | 自動利得制御装置 | |
JP2735544B2 (ja) | 映像信号再生装置 | |
KR890004227B1 (ko) | 색신호 처리장치 | |
KR910005586Y1 (ko) | 비디오 카세트 레코더의 화질 보상회로 | |
JPH05282782A (ja) | 磁気記録再生装置 | |
GB2259825A (en) | Circuit for compensating for the drop-out of a reproduced video signal | |
KR950005041B1 (ko) | 영상신호 파형 정형회로 | |
KR960007566Y1 (ko) | Ntsc/pal 겸용 시스템에서의 음성신호처리회로 | |
KR940022505A (ko) | 브이 씨 알(vcr)의 알 에프(rf)신호 레벨 자동 조절 장치 | |
JPH01208702A (ja) | 磁気記録再生装置 | |
KR900009753Y1 (ko) | 비디오 카세트 레코오더의 변속재생시 잡음신호 제거회로 | |
JP2754545B2 (ja) | ドロップアウト補償回路 | |
KR940000539Y1 (ko) | Vcr 재생시 칼라 레벨 보정장치 | |
JP2855765B2 (ja) | 映像信号処理回路 | |
KR100208184B1 (ko) | Vcr의 ynr 자동 조정장치 | |
JPH067645Y2 (ja) | Agc回路 | |
KR19980029404A (ko) | Fm신호의 진폭제한장치 | |
JPS61245683A (ja) | 再生装置 | |
JPS625787A (ja) | ノイズ減少回路 |
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: 19910718 |
|
UA0201 | Request for examination |
Patent event date: 19910718 Patent event code: UA02012R01D Comment text: Request for Examination of Application |
|
UG1501 | Laying open of application | ||
UG1604 | Publication of application |
Patent event code: UG16041S01I Comment text: Decision on Publication of Application Patent event date: 19930924 |
|
E701 | Decision to grant or registration of patent right | ||
UE0701 | Decision of registration |
Patent event date: 19940117 Comment text: Decision to Grant Registration Patent event code: UE07011S01D |
|
REGI | Registration of establishment | ||
UR0701 | Registration of establishment |
Patent event date: 19940323 Patent event code: UR07011E01D Comment text: Registration of Establishment |
|
UR1002 | Payment of registration fee |
Start annual number: 1 End annual number: 3 Payment date: 19940321 |
|
UR1001 | Payment of annual fee |
Payment date: 19960924 Start annual number: 4 End annual number: 4 |
|
UR1001 | Payment of annual fee |
Payment date: 19961231 Start annual number: 5 End annual number: 5 |
|
FPAY | Annual fee payment |
Payment date: 19980925 Year of fee payment: 6 |
|
UR1001 | Payment of annual fee |
Payment date: 19980925 Start annual number: 6 End annual number: 6 |
|
LAPS | Lapse due to unpaid annual fee | ||
UC1903 | Unpaid annual fee |