KR880001131B1 - 텔레비젼 수신기의 자동 이득 제어 시스템용 잡음 감도 감소회로 - Google Patents
텔레비젼 수신기의 자동 이득 제어 시스템용 잡음 감도 감소회로 Download PDFInfo
- Publication number
- KR880001131B1 KR880001131B1 KR8202347A KR820002347A KR880001131B1 KR 880001131 B1 KR880001131 B1 KR 880001131B1 KR 8202347 A KR8202347 A KR 8202347A KR 820002347 A KR820002347 A KR 820002347A KR 880001131 B1 KR880001131 B1 KR 880001131B1
- Authority
- KR
- South Korea
- Prior art keywords
- output
- transistor
- filter
- coupled
- input
- 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
- 230000009467 reduction Effects 0.000 title description 3
- 230000035945 sensitivity Effects 0.000 title description 2
- 239000003990 capacitor Substances 0.000 claims description 13
- 230000008859 change Effects 0.000 claims description 10
- 239000002131 composite material Substances 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 3
- 230000002939 deleterious effect Effects 0.000 abstract 1
- 238000005513 bias potential Methods 0.000 description 3
- 230000001934 delay Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
- H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/52—Automatic gain control
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Picture Signal Circuits (AREA)
- Control Of Amplification And Gain Control (AREA)
- Television Receiver Circuits (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Noise Elimination (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US268.494 | 1981-05-29 | ||
| US268.497 | 1981-05-29 | ||
| US06/268,497 US4408229A (en) | 1981-05-29 | 1981-05-29 | Noise sensitivity reduction apparatus for a TV receiver AGC system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR840000139A KR840000139A (ko) | 1984-01-30 |
| KR880001131B1 true KR880001131B1 (ko) | 1988-06-30 |
Family
ID=23023272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR8202347A Expired KR880001131B1 (ko) | 1981-05-29 | 1982-05-27 | 텔레비젼 수신기의 자동 이득 제어 시스템용 잡음 감도 감소회로 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US4408229A (cg-RX-API-DMAC7.html) |
| EP (1) | EP0067585B1 (cg-RX-API-DMAC7.html) |
| JP (1) | JPS57207409A (cg-RX-API-DMAC7.html) |
| KR (1) | KR880001131B1 (cg-RX-API-DMAC7.html) |
| AT (1) | ATE17069T1 (cg-RX-API-DMAC7.html) |
| CA (1) | CA1185360A (cg-RX-API-DMAC7.html) |
| DE (1) | DE3267997D1 (cg-RX-API-DMAC7.html) |
| FI (1) | FI72627C (cg-RX-API-DMAC7.html) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4577234A (en) * | 1983-10-31 | 1986-03-18 | Rca Corporation | Driver amplifier for an image display device |
| US4680631A (en) * | 1984-09-19 | 1987-07-14 | Tokyo Electric Co., Ltd. | Television composite video signal processing circuit |
| FR2611337B1 (fr) * | 1987-02-20 | 1989-05-26 | Thomson Semiconducteurs | Dispositif de commande automatique de gain de signaux video |
| MY108249A (en) * | 1991-12-13 | 1996-08-30 | Thomson Consumer Electronics Inc | A detector circuit for use in a vcr |
| US5305109A (en) * | 1992-09-08 | 1994-04-19 | Samsung Electronics Co., Ltd. | Parallel untuned video if amplifiers supplied signals from TV 1st detector via respective input filters |
| US8760538B2 (en) | 2011-01-21 | 2014-06-24 | Exelis, Inc. | Adaptive gain control image processing system and method |
| KR102494784B1 (ko) | 2015-07-28 | 2023-02-01 | 삼성전자주식회사 | 수신기 및 그 동작 방법 |
| KR102106548B1 (ko) | 2018-12-12 | 2020-05-04 | 주식회사 세프라 | 덴드리머를 포함하는 에어백 슈트용 올레핀계 탄성체 복합수지 조성물 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3898380A (en) * | 1973-10-17 | 1975-08-05 | Motorola Inc | AGC Detector circuit having noise and overload correction capability |
| US4292598A (en) * | 1978-06-01 | 1981-09-29 | Tokyo Shibaura Denki Kabushiki Kaisha | Automatic gain control circuit |
| US4218708A (en) * | 1978-08-18 | 1980-08-19 | Rca Corporation | Keyed AGC circuit |
| JPS5527759A (en) * | 1978-08-21 | 1980-02-28 | Hitachi Ltd | Monolithic semiconductor integrated circuit for television |
-
1981
- 1981-05-29 US US06/268,497 patent/US4408229A/en not_active Expired - Fee Related
-
1982
- 1982-05-20 CA CA000403433A patent/CA1185360A/en not_active Expired
- 1982-05-21 FI FI821820A patent/FI72627C/fi not_active IP Right Cessation
- 1982-05-27 DE DE8282302739T patent/DE3267997D1/de not_active Expired
- 1982-05-27 EP EP82302739A patent/EP0067585B1/en not_active Expired
- 1982-05-27 KR KR8202347A patent/KR880001131B1/ko not_active Expired
- 1982-05-27 AT AT82302739T patent/ATE17069T1/de not_active IP Right Cessation
- 1982-05-28 JP JP57092052A patent/JPS57207409A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| DE3267997D1 (en) | 1986-01-30 |
| EP0067585A2 (en) | 1982-12-22 |
| EP0067585A3 (en) | 1984-01-18 |
| ATE17069T1 (de) | 1986-01-15 |
| US4408229A (en) | 1983-10-04 |
| EP0067585B1 (en) | 1985-12-18 |
| KR840000139A (ko) | 1984-01-30 |
| FI72627C (fi) | 1987-06-08 |
| JPS57207409A (en) | 1982-12-20 |
| CA1185360A (en) | 1985-04-09 |
| JPS6319090B2 (cg-RX-API-DMAC7.html) | 1988-04-21 |
| FI821820A0 (fi) | 1982-05-21 |
| FI72627B (fi) | 1987-02-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PA0109 | Patent application |
Patent event code: PA01091R01D Comment text: Patent Application Patent event date: 19820527 |
|
| PG1501 | Laying open of application | ||
| PA0201 | Request for examination |
Patent event code: PA02012R01D Patent event date: 19870519 Comment text: Request for Examination of Application Patent event code: PA02011R01I Patent event date: 19820527 Comment text: Patent Application |
|
| PG1605 | Publication of application before grant of patent |
Comment text: Decision on Publication of Application Patent event code: PG16051S01I Patent event date: 19880531 |
|
| PE0701 | Decision of registration |
Patent event code: PE07011S01D Comment text: Decision to Grant Registration Patent event date: 19880913 |
|
| PC1904 | Unpaid initial registration fee |