GB2176367B - Circuit arrangement for reducing cross modulation distortion in low frequency chrominance signal - Google Patents
Circuit arrangement for reducing cross modulation distortion in low frequency chrominance signalInfo
- Publication number
- GB2176367B GB2176367B GB08612343A GB8612343A GB2176367B GB 2176367 B GB2176367 B GB 2176367B GB 08612343 A GB08612343 A GB 08612343A GB 8612343 A GB8612343 A GB 8612343A GB 2176367 B GB2176367 B GB 2176367B
- Authority
- GB
- United Kingdom
- Prior art keywords
- low frequency
- circuit arrangement
- chrominance signal
- modulation distortion
- reducing cross
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/79—Processing of colour television signals in connection with recording
- H04N9/7908—Suppression of interfering signals at the reproducing side, e.g. noise
- H04N9/7912—Suppression of interfering signals at the reproducing side, e.g. noise the interfering signals being intermodulation signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/79—Processing of colour television signals in connection with recording
- H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
- H04N9/82—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only
- H04N9/83—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only the recorded chrominance signal occupying a frequency band under the frequency band of the recorded brightness signal
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Processing Of Color Television Signals (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60108773A JPS61265991A (en) | 1985-05-21 | 1985-05-21 | Cross modulation distortion reducing device for low frequency conversion carrier chrominance signal |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8612343D0 GB8612343D0 (en) | 1986-06-25 |
GB2176367A GB2176367A (en) | 1986-12-17 |
GB2176367B true GB2176367B (en) | 1988-08-03 |
Family
ID=14493116
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB08612343A Expired GB2176367B (en) | 1985-05-21 | 1986-05-21 | Circuit arrangement for reducing cross modulation distortion in low frequency chrominance signal |
Country Status (2)
Country | Link |
---|---|
JP (1) | JPS61265991A (en) |
GB (1) | GB2176367B (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR900008750B1 (en) * | 1987-07-21 | 1990-11-29 | 마쓰시다덴기산교 가부시기가이샤 | F.m.demodulation circuit |
JPH01117573A (en) * | 1987-10-30 | 1989-05-10 | Pioneer Electron Corp | Noise suppression device for video signal |
US4908581A (en) * | 1988-07-21 | 1990-03-13 | Matsushita Electric Industrial Co., Ltd. | Frequency demodulator having circuit cancelling undesired signal components |
DE3939520A1 (en) * | 1989-11-30 | 1991-06-06 | Nokia Unterhaltungselektronik | CIRCUIT TO RECOVER THE CHROMA SIGNAL |
-
1985
- 1985-05-21 JP JP60108773A patent/JPS61265991A/en active Granted
-
1986
- 1986-05-21 GB GB08612343A patent/GB2176367B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS61265991A (en) | 1986-11-25 |
GB8612343D0 (en) | 1986-06-25 |
GB2176367A (en) | 1986-12-17 |
JPH051679B2 (en) | 1993-01-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19990521 |