JPS5555687A - Recording and reproducing method for color video signal and comb type filter used for it - Google Patents
Recording and reproducing method for color video signal and comb type filter used for itInfo
- Publication number
- JPS5555687A JPS5555687A JP12883678A JP12883678A JPS5555687A JP S5555687 A JPS5555687 A JP S5555687A JP 12883678 A JP12883678 A JP 12883678A JP 12883678 A JP12883678 A JP 12883678A JP S5555687 A JPS5555687 A JP S5555687A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- fed
- band
- recording
- mixer
- 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
- Processing Of Color Television Signals (AREA)
Abstract
PURPOSE: To simplify the rejection of adjacent crosstalk, with frequency interleave for the side band at carrier chroma signal band, recording the low band conversion carrier chroma signals in adjacent tracks through interleave, and enabling the high density recording.
CONSTITUTION: The color video signal is inputted to LPF2 and HPF3, and the luminance signal (a) and carrier chroma signal (b) are outputted at the output, FM modulation is made for the signal (a) with angular modulator 3, the output is fed to HPF4 to reduce the FM modulation wave present in the low band conversion carrier chroma signal band and it is fed to the mixer 5. On the other hand, the signal (b) is fed to the frequency converter 8, balance modulation is made with the carrier from the terminal 10, low conversion carrier chroma signal (d) is outputted via LPF9, it is fed to the mixer 5 via the phase selector 11, and it is fed to the video head 6 with mixing it with the signal (a). Further, in reproduction, FM luminance signal and low conversion carrier chrominance signal (e) are outputted with HPF12 and LPF13, the signal (e) is processed with te comb type filter 20, and it is mixed with the mixer 16 with the luminance signal demodulated at the FM modulator 14.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12883678A JPS5555687A (en) | 1978-10-18 | 1978-10-18 | Recording and reproducing method for color video signal and comb type filter used for it |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12883678A JPS5555687A (en) | 1978-10-18 | 1978-10-18 | Recording and reproducing method for color video signal and comb type filter used for it |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5555687A true JPS5555687A (en) | 1980-04-23 |
Family
ID=14994593
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12883678A Pending JPS5555687A (en) | 1978-10-18 | 1978-10-18 | Recording and reproducing method for color video signal and comb type filter used for it |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5555687A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01223892A (en) * | 1988-03-03 | 1989-09-06 | Fujitsu General Ltd | Y/c separation circuit for video image processing section |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5248920A (en) * | 1975-10-17 | 1977-04-19 | Victor Co Of Japan Ltd | Pal-system color image signal recording/reproducing system |
JPS5250625A (en) * | 1975-10-22 | 1977-04-22 | Matsushita Electric Ind Co Ltd | Record reproduction device of colour image signal |
-
1978
- 1978-10-18 JP JP12883678A patent/JPS5555687A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5248920A (en) * | 1975-10-17 | 1977-04-19 | Victor Co Of Japan Ltd | Pal-system color image signal recording/reproducing system |
JPS5250625A (en) * | 1975-10-22 | 1977-04-22 | Matsushita Electric Ind Co Ltd | Record reproduction device of colour image signal |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01223892A (en) * | 1988-03-03 | 1989-09-06 | Fujitsu General Ltd | Y/c separation circuit for video image processing section |
JPH0632452B2 (en) * | 1988-03-03 | 1994-04-27 | 株式会社富士通ゼネラル | Y / C separation circuit of video processing unit |
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