GB432783A - Improvements in or relating to the synchronisation of the beam of a cathode ray tube - Google Patents
Improvements in or relating to the synchronisation of the beam of a cathode ray tubeInfo
- Publication number
- GB432783A GB432783A GB2436/35A GB243635A GB432783A GB 432783 A GB432783 A GB 432783A GB 2436/35 A GB2436/35 A GB 2436/35A GB 243635 A GB243635 A GB 243635A GB 432783 A GB432783 A GB 432783A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- grid
- discharge
- jan
- suppression
- 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
- H04N5/04—Synchronising
- H04N5/06—Generation of synchronising signals
- H04N5/067—Arrangements or circuits at the transmitter end
- H04N5/073—Arrangements or circuits at the transmitter end for mutually locking plural sources of synchronising signals, e.g. studios or relay stations
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/04—Synchronising
- H04N5/12—Devices in which the synchronising signals are only operative if a phase difference occurs between synchronising and synchronised scanning devices, e.g. flywheel synchronising
- H04N5/123—Devices in which the synchronising signals are only operative if a phase difference occurs between synchronising and synchronised scanning devices, e.g. flywheel synchronising whereby the synchronisation signal directly commands a frequency generator
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
- Particle Accelerators (AREA)
Abstract
432,783. Television. COMPAGNIE POUR LA FABRICATION DES COMPTEURS ET MATERIEL D'USINES A GAZ, 12, Place des Etats-Unis, Montrouge, Seine, France. Jan. 24, 1935, Nos. 2436 and 2437. Convention dates, Jan. 25, 1934 and April 10, 1934. [Class 40 (iii)] The line - synchronizing signal is suppressed at the transmitter at least once per image and at the receiver the grid-controlled gas - discharge tube 17 discharging at the image frequency is controlled by the action of this suppression on the tube 4 discharging at the line-scanning frequency. Owing to the suppression of the synchronizing signal the condenser 8 is charged to an abnormally large voltage and its discharge produces an impulse in an inductively coupled winding 22 which is sufficiently strong to overcome a grid-bias 23 and cause the tube 17 to discharge. Alternatively, the plate 6 is coupled to the grid 19 of the tube 17 through a condenser, Fig. 2 (not shown). Specification 423,098 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR45317T | 1934-04-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB432783A true GB432783A (en) | 1935-08-01 |
Family
ID=8681074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2436/35A Expired GB432783A (en) | 1934-04-10 | 1935-01-24 | Improvements in or relating to the synchronisation of the beam of a cathode ray tube |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2143932A (en) |
| FR (2) | FR780779A (en) |
| GB (1) | GB432783A (en) |
| NL (1) | NL41739C (en) |
-
0
- NL NL41739D patent/NL41739C/xx active
-
1934
- 1934-01-25 FR FR780779D patent/FR780779A/en not_active Expired
- 1934-04-10 FR FR45317D patent/FR45317E/en not_active Expired
-
1935
- 1935-01-16 US US2039A patent/US2143932A/en not_active Expired - Lifetime
- 1935-01-24 GB GB2436/35A patent/GB432783A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR780779A (en) | 1935-05-03 |
| FR45317E (en) | 1935-07-22 |
| NL41739C (en) | |
| US2143932A (en) | 1939-01-17 |
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