GB514807A - Improvements in apparatus for receiving television and like signals - Google Patents
Improvements in apparatus for receiving television and like signalsInfo
- Publication number
- GB514807A GB514807A GB1670738A GB1670738A GB514807A GB 514807 A GB514807 A GB 514807A GB 1670738 A GB1670738 A GB 1670738A GB 1670738 A GB1670738 A GB 1670738A GB 514807 A GB514807 A GB 514807A
- Authority
- GB
- United Kingdom
- Prior art keywords
- frequency
- signals
- line frequency
- twice
- output
- 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)
- Magnetic Resonance Imaging Apparatus (AREA)
- Picture Signal Circuits (AREA)
Abstract
514,807. Television. GENERAL ELECTRIC CO., Ltd., CHERRY, E. C., EDWARDS, G. W., and O'KANE, B. J., June 3, 1938, No. 16707. [Class 40 (iii)] A series-resonant circuit 15, 16, 17 tuned to the line frequency is shunted across the output of the frequency-selective means 7 for selecting the framing frequency. A component of twice the line frequency is introduced in the output by a condenser 18 connected to a tapping 19 on the anode resistance 6 of the valve 4 for separating the synchronising signals from the image signals. The elements 15, 16, 17 are adjusted so that they also act as a parallel tuned circuit at twice the line frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1670738A GB514807A (en) | 1938-06-03 | 1938-06-03 | Improvements in apparatus for receiving television and like signals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1670738A GB514807A (en) | 1938-06-03 | 1938-06-03 | Improvements in apparatus for receiving television and like signals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB514807A true GB514807A (en) | 1939-11-17 |
Family
ID=10082210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1670738A Expired GB514807A (en) | 1938-06-03 | 1938-06-03 | Improvements in apparatus for receiving television and like signals |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB514807A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2583021A (en) * | 1939-05-26 | 1952-01-22 | Int Standard Electric Corp | Selection of predetermined interruption pulse for frame synchronization |
-
1938
- 1938-06-03 GB GB1670738A patent/GB514807A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2583021A (en) * | 1939-05-26 | 1952-01-22 | Int Standard Electric Corp | Selection of predetermined interruption pulse for frame synchronization |
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