JPS5527718A - Transmission system for color television signal - Google Patents
Transmission system for color television signalInfo
- Publication number
- JPS5527718A JPS5527718A JP10048978A JP10048978A JPS5527718A JP S5527718 A JPS5527718 A JP S5527718A JP 10048978 A JP10048978 A JP 10048978A JP 10048978 A JP10048978 A JP 10048978A JP S5527718 A JPS5527718 A JP S5527718A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- synchronous
- color
- reference level
- terminal
- 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.)
- Pending
Links
Abstract
PURPOSE: To ensure the transmission of the DC reference level with no effect of the frequency characteristics and the level fluctuation of the transmission line by transmitting the front porch of the video signal in the form of the DC reference level of the compressed color signal.
CONSTITUTION: The color signal supplied to terminal 1 is turned to the time axis compressed color signal through time axis compression circuit 3. The part of the blanking period of the color signal is clamped by clamper 5, and this period is defined as the earth potential. While the luminance signal supplied to terminal 2 is clamped by clamper 6 for the tip or the back porch of the synchronous signal, and the DC reference level of the multiplied color signal is set so as to be the earth potential from the bottom of the synchronous signal. At the same time, the synchronous isolation is given to the luminance signal through synchronous isolation circuit 8, and the horizontal and vertical synchronous signals are extracted. Then the control signal is produced through control signal generator 9. Switch 7 is connected to the color signal while the control signal features a high level and then to the luminance signal during a low level respectively. As a result, the signal obtained by setting the front porch period of the video signal to the DC reference level of the color compression signal is delivered to terminal 10.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10048978A JPS5527718A (en) | 1978-08-18 | 1978-08-18 | Transmission system for color television signal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10048978A JPS5527718A (en) | 1978-08-18 | 1978-08-18 | Transmission system for color television signal |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5527718A true JPS5527718A (en) | 1980-02-28 |
Family
ID=14275336
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10048978A Pending JPS5527718A (en) | 1978-08-18 | 1978-08-18 | Transmission system for color television signal |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5527718A (en) |
-
1978
- 1978-08-18 JP JP10048978A patent/JPS5527718A/en active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5526792A (en) | Television screen display unit | |
JPS54132123A (en) | Special effect device for television video signal | |
JPS5566183A (en) | Video signal processor | |
JPS5539444A (en) | Scramble/descramble system for catv broadcast | |
JPS5527718A (en) | Transmission system for color television signal | |
JPS57164687A (en) | Double scanning image receiver | |
JPS57183180A (en) | Pulse generating circuit for solid-state television camera | |
JPS5471945A (en) | Crt dispaly unit | |
JPS5488715A (en) | Delivery system of television signal | |
JPS53126817A (en) | Level controller of video signal | |
JPS6451887A (en) | Video signal processor | |
JPS5397724A (en) | Television picture receiver possessing waveform display function | |
JPS5538768A (en) | Television picture receiver | |
JPS5444821A (en) | Synchronization system of external synchronous monitor television | |
JPS54161224A (en) | Television receiver | |
JPS54110726A (en) | Color television picture receiver | |
JPS5527716A (en) | Signal transmission system for color television signal | |
JPS5514784A (en) | Television picture receiver | |
JPS5588478A (en) | Reduction method for picture signal dynamic range | |
JPS53109423A (en) | Signal processing system for color television | |
JPS648778A (en) | Video signal processing unit | |
JPS5442929A (en) | Television picture receiver | |
JPS55644A (en) | Television picture receiver | |
JPS55162680A (en) | Gate pulse generator | |
JPS5511608A (en) | Frequency characteristics improving circuit for chrominance signal |