JPS54152917A - Automatic eaveform equalizer - Google Patents
Automatic eaveform equalizerInfo
- Publication number
- JPS54152917A JPS54152917A JP6265478A JP6265478A JPS54152917A JP S54152917 A JPS54152917 A JP S54152917A JP 6265478 A JP6265478 A JP 6265478A JP 6265478 A JP6265478 A JP 6265478A JP S54152917 A JPS54152917 A JP S54152917A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- signal
- pulses
- phase
- 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
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
- Processing Of Color Television Signals (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
PURPOSE: To prevent the generation of the phase jitters by making a timing circuit count and output the output signal pulses by making a horizontal synchronizing signal of 17H into trigger pulses.
CONSTITUTION: A color TV signal branched from center tap 18 is applied to color- burst-signal extraction circuit 21 and control-signal extraction circuit 25, and circuit 21 outputs a continuous sine wave synchronizing with the color burst signal; the output wave is multiplied 22 and phase-controlled by phase-shifting circuit 23 before being applied to timing circuit 13. On the other hand, a horizontal synchronizing signal of 17H is extracted by circuit 25 and applied to circuit 13 as trigger pulses. In this circuit 13, output signal pulses of circuit 23 are counted by those trigger pulses and then outputted so as to synchronize equalization timing pulses constantly with the horizontal synchronizing pulse signal of 17H, thereby preventing the generation of the phase jitters.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6265478A JPS54152917A (en) | 1978-05-24 | 1978-05-24 | Automatic eaveform equalizer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6265478A JPS54152917A (en) | 1978-05-24 | 1978-05-24 | Automatic eaveform equalizer |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54152917A true JPS54152917A (en) | 1979-12-01 |
JPS6138675B2 JPS6138675B2 (en) | 1986-08-30 |
Family
ID=13206518
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6265478A Granted JPS54152917A (en) | 1978-05-24 | 1978-05-24 | Automatic eaveform equalizer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54152917A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6267989A (en) * | 1985-09-19 | 1987-03-27 | Matsushita Electric Ind Co Ltd | Comb-line filter control device |
-
1978
- 1978-05-24 JP JP6265478A patent/JPS54152917A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6267989A (en) * | 1985-09-19 | 1987-03-27 | Matsushita Electric Ind Co Ltd | Comb-line filter control device |
Also Published As
Publication number | Publication date |
---|---|
JPS6138675B2 (en) | 1986-08-30 |
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