GB925448A - Improvements in or relating to circuit arrangements for the prevention of screen burning in cathode ray tubes - Google Patents
Improvements in or relating to circuit arrangements for the prevention of screen burning in cathode ray tubesInfo
- Publication number
- GB925448A GB925448A GB4191/60A GB419160A GB925448A GB 925448 A GB925448 A GB 925448A GB 4191/60 A GB4191/60 A GB 4191/60A GB 419160 A GB419160 A GB 419160A GB 925448 A GB925448 A GB 925448A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relating
- prevention
- cathode ray
- ray tubes
- circuit arrangements
- 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
- H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
- H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
- H04N3/16—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections
- H04N3/20—Prevention of damage to cathode-ray tubes in the event of failure of scanning
Abstract
925,448. Converting. PHILIPS ELECTRICAL INDUSTRIES Ltd. Feb. 5, 1960 [Feb. 7, 1959], No. 4191/60. Class 38 (2). [Also in Group XL (c)] In a circuit arrangement for preventing " screen burn " of a television receiver cathoderay tube (C.R.T.) (see Group XL (c)) the operating bias for the tube is supplied by a rectifier 5 fed with line flyback pulses ; the rectifier circuit includes brilliance control 6. In a second embodiment a triode rectifier is used and its circuit is connected to the C.R.T. grid, Fig. 2 (not shown). Specifications 740,881 and 762,440 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL235893 | 1959-02-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB925448A true GB925448A (en) | 1963-05-08 |
Family
ID=19751559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4191/60A Expired GB925448A (en) | 1959-02-07 | 1960-02-05 | Improvements in or relating to circuit arrangements for the prevention of screen burning in cathode ray tubes |
Country Status (8)
| Country | Link |
|---|---|
| BE (1) | BE587350A (en) |
| CH (1) | CH381277A (en) |
| DE (1) | DE1412420B1 (en) |
| DK (1) | DK103682C (en) |
| ES (1) | ES255529A1 (en) |
| FR (1) | FR1247213A (en) |
| GB (1) | GB925448A (en) |
| NL (2) | NL235893A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1055628B (en) * | 1975-10-09 | 1982-01-11 | Indesit | CIRCUIT TO PREVENT THE FORMATION OF THE LIGHT POINT IN A TELEVISION |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2248815A (en) * | 1938-08-04 | 1941-07-08 | Lorenz C Ag | Television receiver |
| DE1012955B (en) * | 1953-12-14 | 1957-08-01 | Lorenz C Ag | Arrangement to prevent the afterglow of the stationary light spot after switching off devices with cathode ray tubes, especially in television sets |
-
0
- NL NL113859D patent/NL113859C/xx active
- NL NL235893D patent/NL235893A/xx unknown
-
1960
- 1960-02-03 DE DE19601412420D patent/DE1412420B1/en active Pending
- 1960-02-04 CH CH127960A patent/CH381277A/en unknown
- 1960-02-04 ES ES0255529A patent/ES255529A1/en not_active Expired
- 1960-02-04 DK DK43960AA patent/DK103682C/en active
- 1960-02-05 GB GB4191/60A patent/GB925448A/en not_active Expired
- 1960-02-05 BE BE587350A patent/BE587350A/en unknown
- 1960-02-05 FR FR817657A patent/FR1247213A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL235893A (en) | |
| DK103682C (en) | 1966-02-07 |
| NL113859C (en) | |
| CH381277A (en) | 1964-08-31 |
| DE1412420B1 (en) | 1970-05-14 |
| FR1247213A (en) | 1960-11-25 |
| ES255529A1 (en) | 1960-04-16 |
| BE587350A (en) | 1960-08-05 |
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