GB481444A - Improvements in relaxation oscillators for television receivers - Google Patents
Improvements in relaxation oscillators for television receiversInfo
- Publication number
- GB481444A GB481444A GB24680/36A GB2468036A GB481444A GB 481444 A GB481444 A GB 481444A GB 24680/36 A GB24680/36 A GB 24680/36A GB 2468036 A GB2468036 A GB 2468036A GB 481444 A GB481444 A GB 481444A
- Authority
- GB
- United Kingdom
- Prior art keywords
- potential
- image
- ignited
- sept
- superposed
- 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
- H04N3/22—Circuits for controlling dimensions, shape or centering of picture on screen
- H04N3/23—Distortion correction, e.g. for pincushion distortion correction, S-correction
- H04N3/237—Distortion correction, e.g. for pincushion distortion correction, S-correction using passive elements, e.g. diodes
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Facsimiles In General (AREA)
Abstract
481,444. Television. RADIOAKT.- GES. D. S. LOEWE. Sept. 10, 1936, No. 24680. Convention date, Sept. 11, 1935. [Class 40 (iii)] A cathode ray is so deflected during its return stroke that it does not impinge on the field of the image. An additional potential is superposed on the potential from the image-frequency oscillator 2 during the return period of the linefrequency oscillator 1 such that the ray is deflected outside the edge of the image. The additional potential is generated by a discharge tube 8, which is ignited at the end of each scanning-line by the synchronizing signal and is quenched by a second discharge tube 9 in parallel, which is ignited through a powderediron cored transformer 10 by the potential peaks in the line-frequency oscillator at the beginning of the scanning-lines. The consequent drop of potential 'is such that both tubes cease to discharge. The additional potential is superposed on the image-frequency potential by a transformer 5 with a compressed powdered-iron core.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE481444X | 1935-09-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB481444A true GB481444A (en) | 1938-03-10 |
Family
ID=6542662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB24680/36A Expired GB481444A (en) | 1935-09-11 | 1936-09-10 | Improvements in relaxation oscillators for television receivers |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR810501A (en) |
| GB (1) | GB481444A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3311834A (en) * | 1963-11-13 | 1967-03-28 | Monsanto Co | Time proportioning control circuits |
-
1936
- 1936-09-08 FR FR810501D patent/FR810501A/en not_active Expired
- 1936-09-10 GB GB24680/36A patent/GB481444A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR810501A (en) | 1937-03-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB409970A (en) | Improvements in television receiving systems | |
| GB453043A (en) | Improvements in or relating to cathode ray tube television and like reproducer apparatus | |
| GB485991A (en) | Improvements in or relating to television synchronizing systems | |
| GB526111A (en) | Improvements in or relating to television transmitting or receiving systems | |
| GB515947A (en) | Improvements in or relating to cathode ray tube arrangements | |
| GB464610A (en) | Improvements in or relating to television receiving systems | |
| GB481444A (en) | Improvements in relaxation oscillators for television receivers | |
| GB420876A (en) | Braun tube | |
| GB440106A (en) | Braun tube for producing television images of large size | |
| US1999378A (en) | Television system | |
| GB425687A (en) | Arrangement for producing relaxation oscillations, more particularly in television arrangements | |
| GB483667A (en) | Transformation of relaxation oscillations | |
| GB467195A (en) | Improvements in or relating to television or like receivers employing cathode ray tubes | |
| US2178736A (en) | Television apparatus | |
| GB468505A (en) | Television transmission method | |
| GB442740A (en) | Relaxation oscillation generator | |
| GB454471A (en) | Relaxation oscillation circuit for interlaced scanning in television | |
| GB480672A (en) | Improvements in or relating to cathode ray tubes for television | |
| GB425685A (en) | Method of producing relaxation oscillations, more particularly for television purposes | |
| GB497620A (en) | Device for magnetic deflection of a cathode ray | |
| GB432783A (en) | Improvements in or relating to the synchronisation of the beam of a cathode ray tube | |
| GB455479A (en) | Improvements in or relating to electrical circuits associated with cathode-ray tubes | |
| GB457929A (en) | Improvements in or relating to cathode ray tube apparatus | |
| GB420679A (en) | Method of and arrangement for the synchronisation of television receiving apparatus | |
| GB477038A (en) | Improvements relating to television and the like |