JPS54107622A - Sample forming system of composite color television signal - Google Patents
Sample forming system of composite color television signalInfo
- Publication number
- JPS54107622A JPS54107622A JP1447178A JP1447178A JPS54107622A JP S54107622 A JPS54107622 A JP S54107622A JP 1447178 A JP1447178 A JP 1447178A JP 1447178 A JP1447178 A JP 1447178A JP S54107622 A JPS54107622 A JP S54107622A
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- sampled
- signal
- generator
- color television
- 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
Landscapes
- Color Television Systems (AREA)
Abstract
PURPOSE: To make easy the band compression, by doubling the sampled frequency for that of the band compression, in coding the NTSC system color television signal.
CONSTITUTION: The sampled frequency suitable for the band compression by low bit rate required for transmission is selected to 2fsc±1/4 fh. Where fsc is color sub- carrier frequency and fh is horizontal scanning frequency, and this sampled frequency eliminates the duplication at folding for the luminance signal spectrum and the chroma signal spectrum. The input signal via LPF 1 is picked up for fsc with the 4 fsc generator 31 and the fh component with the 1/2 fh generator 32, and the frequency of 4(fsc±1/8 fh) is generated from the sampled frequency generator 3, and the input signal is sampled and coded with the coder 2. In the transmission, the signal of a given rate can be obtained by sampling every other output signal.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1447178A JPS54107622A (en) | 1978-02-10 | 1978-02-10 | Sample forming system of composite color television signal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1447178A JPS54107622A (en) | 1978-02-10 | 1978-02-10 | Sample forming system of composite color television signal |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54107622A true JPS54107622A (en) | 1979-08-23 |
Family
ID=11861963
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1447178A Pending JPS54107622A (en) | 1978-02-10 | 1978-02-10 | Sample forming system of composite color television signal |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54107622A (en) |
-
1978
- 1978-02-10 JP JP1447178A patent/JPS54107622A/en active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB2277227A (en) | Video signal coding | |
JPS54132123A (en) | Special effect device for television video signal | |
JPS54107622A (en) | Sample forming system of composite color television signal | |
JPS57164687A (en) | Double scanning image receiver | |
GB2003695A (en) | Transcoding digital PAL colour television signals | |
JPS56119593A (en) | Processing device of color video signal | |
JPS57140092A (en) | Speed error detecting signal system | |
GB2252008B (en) | Improvements in and relating to television systems | |
JPS54121021A (en) | Secam signal recording system | |
Clarke | Digital standards conversion: comparison of colour decoding methods | |
JPS53141007A (en) | Video signal transmitter | |
JPS5480025A (en) | Sampling system for television signal | |
JPS5366120A (en) | Sampling system for color television signal | |
JPS53116733A (en) | Secam color video signal recording device | |
JPS54158126A (en) | Back color mixer | |
JPS5580988A (en) | Color video signal recorder | |
JPS5690683A (en) | Eliminating circuit for disturbing signal of luminance signal | |
GB1457107A (en) | Signal processing | |
JPS5684095A (en) | Magnetic video recorder | |
JPS5570185A (en) | Dpcm coding system for color television signal | |
JPS5477510A (en) | Band compression system for picture signal | |
TW343418B (en) | Digital color encoder capable of reducing beat noise on TV screen | |
JPS5698978A (en) | Transmitter-receiver for television signal | |
JPS5398727A (en) | Interpolation reproducing system for video signal | |
JPS54128616A (en) | Information processor |