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 signal

Info

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
Application number
GB08612343A
Other versions
GB8612343D0 (en
GB2176367A (en
Inventor
Toshihiro Omoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Victor Company of Japan Ltd
Nippon Victor KK
Original Assignee
Victor Company of Japan Ltd
Nippon Victor KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Victor Company of Japan Ltd, Nippon Victor KK filed Critical Victor Company of Japan Ltd
Publication of GB8612343D0 publication Critical patent/GB8612343D0/en
Publication of GB2176367A publication Critical patent/GB2176367A/en
Application granted granted Critical
Publication of GB2176367B publication Critical patent/GB2176367B/en
Expired legal-status Critical Current

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)
GB08612343A 1985-05-21 1986-05-21 Circuit arrangement for reducing cross modulation distortion in low frequency chrominance signal Expired GB2176367B (en)

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)

* Cited by examiner, † Cited by third party
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

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