GB475473A - Improvements in or relating to television and like transmitter apparatus - Google Patents
Improvements in or relating to television and like transmitter apparatusInfo
- Publication number
- GB475473A GB475473A GB12172/37A GB1217237A GB475473A GB 475473 A GB475473 A GB 475473A GB 12172/37 A GB12172/37 A GB 12172/37A GB 1217237 A GB1217237 A GB 1217237A GB 475473 A GB475473 A GB 475473A
- Authority
- GB
- United Kingdom
- Prior art keywords
- scanned
- potentiometer
- april
- electrode
- electrodes
- 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
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/40—Circuit details for pick-up tubes
Abstract
475,473. Television transmitters. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. April 28, 1937, No. 12172. Convention date, April 28, 1936. [Classes 39 (i) and 40 (iii)] Each of a plurality of independently adjustable means 14 ... 17 is associated with a different region of the screen scanned in an iconoscope or the like and produces a signal which compensates in that region an interfering signal equivalent to a distribution of brightness superimposed on the image. The electrodes 14 ... 17 are in a plane in a separate cathode-ray tube 10 and have their potentials individually adjusted on a potentiometer 30. The electrodes emit secondary electrons when struck by the cathode ray, which has a substantial cross-section and moves in synchronism with that in the scanning tube so that each electrode is scanned while the corresponding area of the picture is being scanned. The secondary emission is collected by an electrode 31 in whose circuit is an impedance 32 from which the compensating signals are taken. The individual tappings on the potentiometer are adjusted by moving controlling-handles, which are distributed over a surface correspondingly with the associated regions of the subject, Fig. 4 (not shown).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE475473X | 1936-04-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB475473A true GB475473A (en) | 1937-11-19 |
Family
ID=6541855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB12172/37A Expired GB475473A (en) | 1936-04-28 | 1937-04-28 | Improvements in or relating to television and like transmitter apparatus |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2202511A (en) |
| FR (1) | FR821145A (en) |
| GB (1) | GB475473A (en) |
| NL (1) | NL48565C (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE889170C (en) * | 1938-03-30 | 1953-09-07 | Lorenz C Ag | Arrangement to reduce the interference pulses superimposed on the useful image pulses and arising at the edge of the mosaic plate in cathode ray scanners |
| NL70111C (en) * | 1939-06-03 | |||
| US2475644A (en) * | 1943-08-19 | 1949-07-12 | Nora A Woodin | Electron tube |
| US2583562A (en) * | 1947-11-13 | 1952-01-29 | Bell Telephone Labor Inc | Cathode-ray device |
| US2692727A (en) * | 1949-08-27 | 1954-10-26 | Gen Electric | Apparatus for digital computation |
| US2776371A (en) * | 1952-07-18 | 1957-01-01 | Bell Telephone Labor Inc | Quantizing system employing cathode ray tube |
| US2802138A (en) * | 1954-04-22 | 1957-08-06 | Burroughs Corp | Computing elements and systems |
| US3459984A (en) * | 1966-12-07 | 1969-08-05 | Dale R Koehler | Multiplier logic tube |
| GB1334044A (en) * | 1969-11-12 | 1973-10-17 | Meldreth Electronics Ltd | Image analysing |
| US3902011A (en) * | 1969-11-12 | 1975-08-26 | Meldreth Electronics Limited | Image analysing |
| TWI353774B (en) * | 2006-04-28 | 2011-12-01 | Novatek Microelectronics Corp | Method and related adjustment circuit for compensa |
| US10704944B2 (en) | 2014-09-14 | 2020-07-07 | Becton, Dickinson And Company | System and method for capturing dose information |
-
0
- NL NL48565D patent/NL48565C/xx active
-
1937
- 1937-04-27 FR FR821145D patent/FR821145A/en not_active Expired
- 1937-04-28 GB GB12172/37A patent/GB475473A/en not_active Expired
- 1937-04-28 US US139356A patent/US2202511A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| NL48565C (en) | |
| US2202511A (en) | 1940-05-28 |
| FR821145A (en) | 1937-11-27 |
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