JPS5527716A - Signal transmission system for color television signal - Google Patents
Signal transmission system for color television signalInfo
- Publication number
- JPS5527716A JPS5527716A JP10048778A JP10048778A JPS5527716A JP S5527716 A JPS5527716 A JP S5527716A JP 10048778 A JP10048778 A JP 10048778A JP 10048778 A JP10048778 A JP 10048778A JP S5527716 A JPS5527716 A JP S5527716A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- color
- supplied
- clamper
- 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.)
- Granted
Links
Landscapes
- Color Television Systems (AREA)
Abstract
PURPOSE: To reduce the color variation caused by the overload by making use of the fact that the S/N standard for the color signal is less strict than the luminance signal and thus lowering the amplitude of the color signal as well as the DC reference level.
CONSTITUTION: Color signal I and Q are supplied to input terminals 1 and 2 and then converted into the linear sequential signals via switch 4. This signal gives attenuation of about 5dB to the color compression signal through attenuator 7 and via clamper 5 and time axis compression circuit 6. While luminance signal Y is supplied to clamper 8 through input terminal 3. Switch 9 switches attenuator 7 and clamper 8 to deliver the output through terminal 10. This output is supplied to terminal 11 and then isolated into the color and luminance signals by switch 13 and via clamper 12. The compressed color signal is supplied to amplifier 14 to be amplified by 5dB. And this output is converted into the simultaneous signal at color signal interpolation circuit 16 through time axis expansion circuit 15. Thus signals I, Q and Y are delivered through terminals 17, 18 and 19 respectively.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10048778A JPS5917591B2 (en) | 1978-08-18 | 1978-08-18 | Color television signal transmission system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10048778A JPS5917591B2 (en) | 1978-08-18 | 1978-08-18 | Color television signal transmission system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5527716A true JPS5527716A (en) | 1980-02-28 |
JPS5917591B2 JPS5917591B2 (en) | 1984-04-21 |
Family
ID=14275277
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10048778A Expired JPS5917591B2 (en) | 1978-08-18 | 1978-08-18 | Color television signal transmission system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5917591B2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6255895U (en) * | 1985-09-27 | 1987-04-07 | ||
JPH0240887A (en) * | 1988-07-29 | 1990-02-09 | Matsushita Electric Ind Co Ltd | Microwave oven |
-
1978
- 1978-08-18 JP JP10048778A patent/JPS5917591B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5917591B2 (en) | 1984-04-21 |
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