GB421937A - Improvements in and relating to picture assembling in television receivers - Google Patents
Improvements in and relating to picture assembling in television receiversInfo
- Publication number
- GB421937A GB421937A GB10592/34A GB1059234A GB421937A GB 421937 A GB421937 A GB 421937A GB 10592/34 A GB10592/34 A GB 10592/34A GB 1059234 A GB1059234 A GB 1059234A GB 421937 A GB421937 A GB 421937A
- Authority
- GB
- United Kingdom
- Prior art keywords
- saw
- frequency
- modulated
- oscillations
- tooth
- 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
- 230000010355 oscillation Effects 0.000 abstract 4
- 239000000969 carrier Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/06—Systems for the simultaneous transmission of one television signal, i.e. both picture and sound, by more than one carrier
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Transforming Light Signals Into Electric Signals (AREA)
Abstract
421,937. Television. SUDDEUTSCHE TELEFON - APPARATE - KABEL - UND DRAHTWERKE AKT.-GES., Tekade, Nuremberg, Germany. April 7, 1934, No. 10592. Convention date, Nov. 6, 1933. [Class 40 (iii)] The whole of the saw-tooth oscillations bf, zf necessary to control the scanning movement of a cathode-ray at a receiver is transmitted by a separate transmitter S2, the carrier frequency ft2 of which is also modulated by accompanying sound frequencies tf through an intermediate carrier frequency fz1. The carrier frequency of ft2 is modulated directly by both saw-tooth oscillations, Fig. 1 (not shown) or the saw-tooth oscillation bf of the picture frequency may first modulate an intermediate carrier fz2. The receiver E2 corresponding to the transmitter S2 comprises a detector D2 followed by filters F1, F2, F3 which supply the directly modulated oscillations zf to a low frequency amplifier V2, and the intermediate carriers fz1, fz2 each to a second detector D3, D4 followed by a low-frequency amplifier V5.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE421937X | 1933-11-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB421937A true GB421937A (en) | 1935-01-02 |
Family
ID=6460932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB10592/34A Expired GB421937A (en) | 1933-11-06 | 1934-04-07 | Improvements in and relating to picture assembling in television receivers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB421937A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2477625A (en) * | 1944-08-25 | 1949-08-02 | Standard Telephones Cables Ltd | Multiplex television and pulse modulated sound system |
| US2567539A (en) * | 1948-06-25 | 1951-09-11 | Zenith Radio Corp | Subscriber television system |
-
1934
- 1934-04-07 GB GB10592/34A patent/GB421937A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2477625A (en) * | 1944-08-25 | 1949-08-02 | Standard Telephones Cables Ltd | Multiplex television and pulse modulated sound system |
| US2567539A (en) * | 1948-06-25 | 1951-09-11 | Zenith Radio Corp | Subscriber television system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB531711A (en) | Automatic amplification and black level control for television receivers | |
| GB428926A (en) | Improvements in or relating to cathode ray television receivers | |
| GB920026A (en) | Improvements in or relating to radio transmission systems | |
| GB421937A (en) | Improvements in and relating to picture assembling in television receivers | |
| GB546932A (en) | Improvements in television receivers | |
| GB541006A (en) | Television synchronizing and control system | |
| GB525284A (en) | Automatic control of television receiving systems | |
| GB852512A (en) | Improvements in or relating to colour television transmitting systems | |
| US2622146A (en) | Automatic frequency control circuit for television | |
| GB541005A (en) | Television synchronizing and control system | |
| US2885474A (en) | Circuit arrangement for use in television receivers and intended for filtering out noise signals | |
| US2696521A (en) | Amplitude modulation intercarrier television | |
| GB497116A (en) | Improvements in television receivers | |
| GB487240A (en) | Improvements in or relating to television transmission or the transmission of images | |
| GB1068879A (en) | Television receiver | |
| GB525629A (en) | Improvements in or relating to television systems | |
| GB439225A (en) | Improvements in or relating to electro-optical image transmission systems | |
| GB604759A (en) | Improvements in or relating to television systems and receivers | |
| GB387240A (en) | Improvements in or relating to television and like receivers | |
| GB428661A (en) | Improvements in or relating to television systems | |
| GB422481A (en) | Improvements in and relating to television and the like transmission systems | |
| GB392810A (en) | Television transmission method | |
| GB360263A (en) | Improvements in or relating to picture and the like telegraph systems and television systems | |
| GB596722A (en) | Improvements in thermionic valve circuits, systems, or apparatus for the reception of wireless, television and the like signals | |
| GB362030A (en) | Improvements in or relating to carrier wave television systems |