JPS5516567A - Sampling processing system for color television signal - Google Patents
Sampling processing system for color television signalInfo
- Publication number
- JPS5516567A JPS5516567A JP8950478A JP8950478A JPS5516567A JP S5516567 A JPS5516567 A JP S5516567A JP 8950478 A JP8950478 A JP 8950478A JP 8950478 A JP8950478 A JP 8950478A JP S5516567 A JPS5516567 A JP S5516567A
- Authority
- JP
- Japan
- Prior art keywords
- color television
- signal
- television signal
- sampling
- inputted
- 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 reproduce a picture of high quality by removing a noise, generated due to sampling of a composite color television signal at a frequency less twice its band fc, making use of correlation between fields.
CONSTITUTION: A composite color television signal of frequency band fc inputted to terminal 1 is sampled at sampling frequency fs (fc<fs<2fc) by A/D converter circuit 2 and then inputted to field memory 4, so that a signal will be outputted which lags the input signal by 262H. The received signal and output signal of field memory 4 are alternated with code "0" at a rate of 2fs by change-over circuits 5 and 6 and inputted to LPF 7 and BPF 8 and 9. Higher harmonic components included in output signals of BPF 8 and 9 due to sampling are canceled by addition circuit 10 and a desired composite color television signal is obtained from terminal 13 via D/A converter circuit 12.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53089504A JPS6026356B2 (en) | 1978-07-24 | 1978-07-24 | Color television signal sampling processing method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53089504A JPS6026356B2 (en) | 1978-07-24 | 1978-07-24 | Color television signal sampling processing method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5516567A true JPS5516567A (en) | 1980-02-05 |
JPS6026356B2 JPS6026356B2 (en) | 1985-06-22 |
Family
ID=13972597
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53089504A Expired JPS6026356B2 (en) | 1978-07-24 | 1978-07-24 | Color television signal sampling processing method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6026356B2 (en) |
-
1978
- 1978-07-24 JP JP53089504A patent/JPS6026356B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS6026356B2 (en) | 1985-06-22 |
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