GB505764A - Improvements in or relating to television systems - Google Patents
Improvements in or relating to television systemsInfo
- Publication number
- GB505764A GB505764A GB28110/37A GB2811037A GB505764A GB 505764 A GB505764 A GB 505764A GB 28110/37 A GB28110/37 A GB 28110/37A GB 2811037 A GB2811037 A GB 2811037A GB 505764 A GB505764 A GB 505764A
- Authority
- GB
- United Kingdom
- Prior art keywords
- inductance
- oscillator
- duration
- signal
- pulses
- 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
- H04N5/08—Separation of synchronising signals from picture signals
- H04N5/10—Separation of line synchronising signal from frame synchronising signal or vice versa
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Details Of Television Scanning (AREA)
Abstract
505,764. Television receivers. WHITE, E. L. C. Oct. 15, 1937, No. 28110. [Class 40 (iii)] Line and frame synchronizing signals, distinguished by duration, are isolated by a valve 1 and applied to an inductance 11, the current. in which grows to a value dependent upon the duration of a signal. At the end of the signal, the inductance 11 and shunt capacity 7 oscillate to give a pulse at 13 whose amplitude depends on the duration of the synchronizing signal. The larger amplitude pulses correspond to frame synchronizing signals and are isolated by an amplitude filter or the whole train may be applied to a frame deflecting oscillator biassed to respond to the larger pulses only. The oscillator may be of the type described in Specification 402,629. The line deflecting oscillator may be controlled by pulses from 12, or 14. The condenser 7 may be the distributed capacity of the inductance. The inductance is preferably damped by a resistance 10. Specification 455,375 is referred to. Reference has been directed by the Comptroller to Specification 484,412.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB28110/37A GB505764A (en) | 1937-10-15 | 1937-10-15 | Improvements in or relating to television systems |
| US233342A US2209436A (en) | 1937-10-15 | 1938-10-05 | Television system |
| DEE2358D DE889605C (en) | 1937-10-15 | 1938-10-12 | Arrangement for converting pulses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB28110/37A GB505764A (en) | 1937-10-15 | 1937-10-15 | Improvements in or relating to television systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB505764A true GB505764A (en) | 1939-05-15 |
Family
ID=10270424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB28110/37A Expired GB505764A (en) | 1937-10-15 | 1937-10-15 | Improvements in or relating to television systems |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2209436A (en) |
| DE (1) | DE889605C (en) |
| GB (1) | GB505764A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2603747A (en) * | 1944-04-24 | 1952-07-15 | Sperry Corp | Sweep circuit |
-
1937
- 1937-10-15 GB GB28110/37A patent/GB505764A/en not_active Expired
-
1938
- 1938-10-05 US US233342A patent/US2209436A/en not_active Expired - Lifetime
- 1938-10-12 DE DEE2358D patent/DE889605C/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2209436A (en) | 1940-07-30 |
| DE889605C (en) | 1953-09-10 |
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