GB1601305A - Average beam current limiter - Google Patents
Average beam current limiter Download PDFInfo
- Publication number
- GB1601305A GB1601305A GB17212/78A GB1721278A GB1601305A GB 1601305 A GB1601305 A GB 1601305A GB 17212/78 A GB17212/78 A GB 17212/78A GB 1721278 A GB1721278 A GB 1721278A GB 1601305 A GB1601305 A GB 1601305A
- Authority
- GB
- United Kingdom
- Prior art keywords
- average current
- signal
- luminance
- level
- threshold level
- 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
- 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
- H04N5/57—Control of contrast or brightness
- H04N5/59—Control of contrast or brightness in dependence upon beam current of cathode ray tube
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Television Receiver Circuits (AREA)
- Processing Of Color Television Signals (AREA)
- Picture Signal Circuits (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/794,127 US4096518A (en) | 1977-05-05 | 1977-05-05 | Average beam current limiter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1601305A true GB1601305A (en) | 1981-10-28 |
Family
ID=25161792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB17212/78A Expired GB1601305A (en) | 1977-05-05 | 1978-05-02 | Average beam current limiter |
Country Status (17)
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2234132A (en) * | 1989-07-07 | 1991-01-23 | Samsung Electronics Co Ltd | Sensed eht level controls brightness, contrast and therefore beam current |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4207591A (en) * | 1978-02-09 | 1980-06-10 | Rca Corporation | Gated automatic beam current limiter in a video signal processing system |
| US4253121A (en) * | 1978-10-12 | 1981-02-24 | Rca Corporation | Plural sequential operating mode automatic kinescope beam current limiter |
| US4253110A (en) * | 1979-12-14 | 1981-02-24 | Rca Corporation | Automatic kinescope beam current limiter with sequential control modes |
| US4204221A (en) * | 1979-01-31 | 1980-05-20 | Rca Corporation | Predictably biased kinescope driver arrangement in a video signal processing system |
| US4203131A (en) * | 1979-01-31 | 1980-05-13 | Rca Corporation | Predictable automatic brightness control circuit in a video signal image reproducing system |
| US4209808A (en) * | 1979-03-26 | 1980-06-24 | Rca Corporation | Stabilized automatic brightness control network in a video signal processing system including an automatic kinescope beam current limiter |
| JPS6320221Y2 (US07923587-20110412-C00001.png) * | 1979-09-20 | 1988-06-06 | ||
| US4589034A (en) | 1980-12-05 | 1986-05-13 | Canon Kabushiki Kaisha | Image processing apparatus |
| JPS6043981A (ja) * | 1983-08-22 | 1985-03-08 | Sony Corp | ビ−ム電流制限回路 |
| KR0136382B1 (en) * | 1988-08-11 | 1998-04-27 | Sanyo Electric Co | Circuitry for preventing doming phenomenon in a television and the method thereof |
| JPH09312852A (ja) * | 1996-05-22 | 1997-12-02 | Matsushita Electric Ind Co Ltd | 自動ビーム電流制限装置 |
| US6897901B2 (en) * | 2001-03-14 | 2005-05-24 | Koninklijke Philips Electronics N.V. | Circuit for combining AKB and selective beam current limiting and projection television system utilizing same |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL82458C (US07923587-20110412-C00001.png) * | 1951-12-05 | |||
| US3543169A (en) * | 1967-10-30 | 1970-11-24 | Bell Telephone Labor Inc | High speed clamping apparatus employing feedback from sample and hold circuit |
| US3578903A (en) * | 1968-12-18 | 1971-05-18 | Rca Corp | Control circuits for preventing kinescope color saturation during blooming |
| US3588341A (en) * | 1969-04-01 | 1971-06-28 | Motorola Inc | Automatic brightness control circuit for establishing the black level of signals in a television reciver |
| US3597540A (en) * | 1969-04-01 | 1971-08-03 | Motorola Inc | Automatic brightness control responsive to black level of video signal |
| DE2003455B2 (de) * | 1970-01-27 | 1977-04-28 | Siemens AG, 1000 Berlin und 8000 München | Verfahren zum wiederherstellen der gleichspannungskomponente von videosignalen |
| DE2021037C3 (de) * | 1970-04-24 | 1974-02-21 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Schaltungsanordnung zur Strahlstrombegrenzung in Fernsehbildröhren |
| US3885093A (en) * | 1972-04-03 | 1975-05-20 | Ampex | Fast acting direct current clamping circuit |
| JPS5528457B2 (US07923587-20110412-C00001.png) * | 1972-07-08 | 1980-07-28 | ||
| JPS4929519A (US07923587-20110412-C00001.png) * | 1972-07-13 | 1974-03-16 | ||
| JPS5230821Y2 (US07923587-20110412-C00001.png) * | 1973-02-28 | 1977-07-14 | ||
| JPS5754983B2 (US07923587-20110412-C00001.png) * | 1974-04-19 | 1982-11-20 |
-
1977
- 1977-05-05 US US05/794,127 patent/US4096518A/en not_active Expired - Lifetime
-
1978
- 1978-04-28 AU AU35548/78A patent/AU519828B2/en not_active Expired
- 1978-04-28 ZA ZA00782439A patent/ZA782439B/xx unknown
- 1978-04-28 FI FI781330A patent/FI781330A/fi not_active Application Discontinuation
- 1978-04-28 IT IT7822870A patent/IT7822870A0/it unknown
- 1978-04-28 SE SE7804891A patent/SE7804891L/xx unknown
- 1978-05-02 GB GB17212/78A patent/GB1601305A/en not_active Expired
- 1978-05-03 MX MX78100568U patent/MX4042E/es unknown
- 1978-05-03 CA CA302,568A patent/CA1096489A/en not_active Expired
- 1978-05-03 NZ NZ187161A patent/NZ187161A/xx unknown
- 1978-05-03 FR FR7813187A patent/FR2390059A1/fr not_active Withdrawn
- 1978-05-03 NL NL7804806A patent/NL7804806A/xx not_active Application Discontinuation
- 1978-05-04 JP JP5365078A patent/JPS53138224A/ja active Pending
- 1978-05-05 PL PL1978206619A patent/PL118112B1/pl unknown
- 1978-05-05 BE BE187437A patent/BE866753A/xx not_active IP Right Cessation
- 1978-05-05 ES ES469494A patent/ES469494A1/es not_active Expired
- 1978-05-05 DE DE2819773A patent/DE2819773B2/de not_active Withdrawn
- 1978-05-05 DE DE2819774A patent/DE2819774C3/de not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2234132A (en) * | 1989-07-07 | 1991-01-23 | Samsung Electronics Co Ltd | Sensed eht level controls brightness, contrast and therefore beam current |
| GB2234132B (en) * | 1989-07-07 | 1993-12-15 | Samsung Electronics Co Ltd | An automatic brightness limiter |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2819774C3 (de) | 1988-02-11 |
| DE2819773A1 (de) | 1978-11-16 |
| NZ187161A (en) | 1982-03-16 |
| DE2819774B2 (de) | 1981-01-22 |
| JPS53138224A (en) | 1978-12-02 |
| ZA782439B (en) | 1979-04-25 |
| BE866753A (fr) | 1978-09-01 |
| ES469494A1 (es) | 1979-03-16 |
| DE2819773B2 (de) | 1981-07-09 |
| IT7822870A0 (it) | 1978-04-28 |
| CA1096489A (en) | 1981-02-24 |
| FI781330A (fi) | 1978-11-06 |
| SE7804891L (sv) | 1978-11-06 |
| US4096518A (en) | 1978-06-20 |
| DE2819774A1 (de) | 1978-11-16 |
| NL7804806A (nl) | 1978-11-07 |
| FR2390059A1 (US07923587-20110412-C00001.png) | 1978-12-01 |
| AU519828B2 (en) | 1981-12-24 |
| PL118112B1 (en) | 1981-09-30 |
| AU3554878A (en) | 1979-11-01 |
| PL206619A1 (pl) | 1979-03-26 |
| MX4042E (es) | 1981-11-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5003394A (en) | Dynamic video system including automatic contrast and "white-stretch" processing sections | |
| US3914545A (en) | Automatic contrast control utilizing three control signals | |
| GB1601304A (en) | Brightness control circuit employing a closed control loop | |
| US4126884A (en) | Kinescope beam current limiter employing automatic sequential control of image contrast and brightness to limit beam current | |
| NZ195819A (en) | Automatic beam current limiter for kinescope | |
| US4096518A (en) | Average beam current limiter | |
| US4044375A (en) | Brightness control apparatus | |
| US4253121A (en) | Plural sequential operating mode automatic kinescope beam current limiter | |
| JPH07114475B2 (ja) | 画像再生装置の電流変更装置 | |
| NZ208243A (en) | Crt beam current limiter inhibited during white balance intervals | |
| US4298886A (en) | Automatic peak beam current leveler system | |
| CA1101988A (en) | Combined blanking level and kinescope bias clamp for a television signal processing system | |
| US5177413A (en) | Arrangement for generating a beam current indicative signal | |
| US4067048A (en) | Automatic beam current limiter | |
| US4207591A (en) | Gated automatic beam current limiter in a video signal processing system | |
| GB1598591A (en) | Brightness control circuit with predictable brightness control range | |
| US4295166A (en) | Failure compensated automatic kinescope beam current limiter | |
| US4489344A (en) | Signal processing unit | |
| US4549218A (en) | On-screen display | |
| US3976836A (en) | Automatic black level setting circuit | |
| US4276566A (en) | Circuit for inhibiting radio frequency interference in a television receiver | |
| CA1065471A (en) | Automatic beam current limiter | |
| US2828357A (en) | Cathode ray tube circuit | |
| US4523233A (en) | Automatic bias control system with compensated sense point | |
| US4079424A (en) | Automatic transient beam current limiter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |