JPS5586279A - Color still picture transmission-reception system - Google Patents
Color still picture transmission-reception systemInfo
- Publication number
- JPS5586279A JPS5586279A JP16145478A JP16145478A JPS5586279A JP S5586279 A JPS5586279 A JP S5586279A JP 16145478 A JP16145478 A JP 16145478A JP 16145478 A JP16145478 A JP 16145478A JP S5586279 A JPS5586279 A JP S5586279A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- circuit
- color
- converter
- written
- 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 eliminate the need for a high normalizing circuit by band-limiting a luminance signal and chromaticity signal to match with the specification of a general monitor TV receiver and then by separately band-converting them.
CONSTITUTION: A NTSC color video signal inputted from terminal 1 is supplied by distributing amplifier circuit 2 to luminance signal LPF3, synchronous separator circuit 4 and color signal BPF5 and a luminance signal separated by LPF3 is band- compressed by A/D converter 6 and D/D converter 7 and then written in Y-signal memory 8. A color signal having passed through BPF5 is converted by color demodulation circuit 9 into color difference R-Y signal 10 and B-Y signal 11, which are converted into PCM codes by A/D converter 13 and then written in memories 15 and 16. Next, luminance signals written in respective memories and color difference signals are read out in the above-mentioned order by way of switch 17 and made into serial data by parallel-series converter circuit 18 before being outputted from terminal 20 through circuit modulator 19. Consequently, the need for a high normalization circuit is eliminated to reduce its price low.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16145478A JPS5586279A (en) | 1978-12-23 | 1978-12-23 | Color still picture transmission-reception system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16145478A JPS5586279A (en) | 1978-12-23 | 1978-12-23 | Color still picture transmission-reception system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5586279A true JPS5586279A (en) | 1980-06-28 |
Family
ID=15735402
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16145478A Pending JPS5586279A (en) | 1978-12-23 | 1978-12-23 | Color still picture transmission-reception system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5586279A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5848591A (en) * | 1981-09-18 | 1983-03-22 | Matsushita Electric Ind Co Ltd | Picture memory controller |
JPS59171391A (en) * | 1983-03-18 | 1984-09-27 | Sanyo Electric Co Ltd | Digital processing circuit of color television signal |
JPH01141494A (en) * | 1987-11-28 | 1989-06-02 | Canon Inc | Digital transmitting method for color video signal |
JPH01152891A (en) * | 1987-12-10 | 1989-06-15 | Canon Inc | Color video signal transmitter |
-
1978
- 1978-12-23 JP JP16145478A patent/JPS5586279A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5848591A (en) * | 1981-09-18 | 1983-03-22 | Matsushita Electric Ind Co Ltd | Picture memory controller |
JPS59171391A (en) * | 1983-03-18 | 1984-09-27 | Sanyo Electric Co Ltd | Digital processing circuit of color television signal |
JPH01141494A (en) * | 1987-11-28 | 1989-06-02 | Canon Inc | Digital transmitting method for color video signal |
JPH01152891A (en) * | 1987-12-10 | 1989-06-15 | Canon Inc | Color video signal transmitter |
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