FR2379961A1 - Procede et appareil pour le codage d'un signal video couleur, en particulier dans un systeme d'enregistrement/lecture video couleur - Google Patents

Procede et appareil pour le codage d'un signal video couleur, en particulier dans un systeme d'enregistrement/lecture video couleur

Info

Publication number
FR2379961A1
FR2379961A1 FR7803420A FR7803420A FR2379961A1 FR 2379961 A1 FR2379961 A1 FR 2379961A1 FR 7803420 A FR7803420 A FR 7803420A FR 7803420 A FR7803420 A FR 7803420A FR 2379961 A1 FR2379961 A1 FR 2379961A1
Authority
FR
France
Prior art keywords
color video
signal
chrominance
information
modulated
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.)
Granted
Application number
FR7803420A
Other languages
English (en)
Other versions
FR2379961B3 (fr
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.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Publication of FR2379961A1 publication Critical patent/FR2379961A1/fr
Application granted granted Critical
Publication of FR2379961B3 publication Critical patent/FR2379961B3/fr
Granted 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
    • H04N9/7921—Processing of colour television signals in connection with recording for more than one processing mode
    • H04N9/7925—Processing of colour television signals in connection with recording for more than one processing mode for more than one standard
    • 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
    • H04N9/835—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 involving processing of the sound signal
    • H04N9/8355—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 involving processing of the sound signal the sound carriers being frequency multiplexed between the luminance carrier and the chrominance carrier
    • 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
    • H04N9/86—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded sequentially and simultaneously, e.g. corresponding to SECAM-system
    • 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
    • H04N9/87—Regeneration of colour television signals
    • H04N9/8707—Regeneration of colour television signals using a demodulator and a remodulator, e.g. for standard conversion

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Color Television Systems (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

L'invention a pour objet un procédé pour coder un signal vidéo couleur, en particulier pour enregistrer un tel signal sur un support d'enregistrement magnétique, dans lequel l'information de chrominance (chromaticité) modulée à une première fréquence porteuse est transformée en une information de chrominance biséquentielle modulée en amplitude à une seconde fréquence porteuse après séparation de l'information de luminance dudit signal vidéo couleur. Selon l'invention, on sépare ladite information de chrominance modulée de ladite information de luminance, on démodule ledit signal de chrominance, on réalise une modulation double équilobrée du signal de chrominance non modulé, on module en fréquence ledit signal de luminance à une troisième fréquence porteuse et on combine additivement le signal de chrominance biséquentiel modulé en amplitude.
FR7803420A 1977-02-07 1978-02-07 Procede et appareil pour le codage d'un signal video couleur, en particulier dans un systeme d'enregistrement/lecture video couleur Granted FR2379961A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/766,541 US4123774A (en) 1977-02-07 1977-02-07 Color signal encoding methods and apparatus for video recording and playback

Publications (2)

Publication Number Publication Date
FR2379961A1 true FR2379961A1 (fr) 1978-09-01
FR2379961B3 FR2379961B3 (fr) 1980-10-31

Family

ID=25076752

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7803420A Granted FR2379961A1 (fr) 1977-02-07 1978-02-07 Procede et appareil pour le codage d'un signal video couleur, en particulier dans un systeme d'enregistrement/lecture video couleur

Country Status (11)

Country Link
US (1) US4123774A (fr)
JP (1) JPS5397727A (fr)
AU (1) AU513410B2 (fr)
DD (1) DD138265A5 (fr)
DE (1) DE2803824A1 (fr)
DK (1) DK53078A (fr)
FR (1) FR2379961A1 (fr)
GB (1) GB1593912A (fr)
NL (1) NL7801275A (fr)
SE (1) SE7801304L (fr)
ZA (1) ZA78718B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0010775A1 (fr) * 1978-11-06 1980-05-14 BASF Aktiengesellschaft Méthodes et dispositions pour transformer des signaux vidéo de couleur dans une sous-porteuse de couleur spéciale qui peut être décodée dans un récepteur de télévision en couleur PAL

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5580867A (en) * 1978-12-12 1980-06-18 Sony Corp Block synchronous signal extracting circuit
JPS5770099A (en) * 1980-10-20 1982-04-30 Seiko Epson Corp Gold brazing filler metal
JPS57160286A (en) 1981-03-28 1982-10-02 Sony Corp Time base correcting device
DE3272586D1 (en) * 1981-09-09 1986-09-18 Hitachi Ltd Color video signal recording and reproducing apparatus
NL8302542A (nl) * 1983-07-15 1985-02-01 Philips Nv Werkwijze voor het koderen van een registratiesignaal, registratiedrager voorzien van een registratiesignaal dat gekodeerd is volgens de werkwijze, inrichting voor het uitvoeren van de werkwijze en inrichting voor het weergeven van een signaal dat gekodeerd is volgens de werkwijze.
US5200834A (en) * 1988-03-30 1993-04-06 Nec Home Electronics Ltd. Magnetic recording and reproducing apparatus obtaining separate clock signals from brightness and color components of a video signal
US5146473A (en) 1989-08-14 1992-09-08 International Mobile Machines Corporation Subscriber unit for wireless digital subscriber communication system
US5008900A (en) * 1989-08-14 1991-04-16 International Mobile Machines Corporation Subscriber unit for wireless digital subscriber communication system
KR960004576B1 (ko) * 1991-05-29 1996-04-09 1996년04월09일 크로마 위상변조기
GB9521345D0 (en) * 1995-10-18 1995-12-20 Plessey Semiconductors Ltd Video modulator arrangements
US5923374A (en) * 1996-08-08 1999-07-13 Lucent Technologies Inc. Method and apparatus for reduced-bandwidth transmission of television signals
US6987583B1 (en) * 1997-12-29 2006-01-17 Thomson Licensing Color difference hue control system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1188392A (en) * 1966-07-19 1970-04-15 Sony Corp Television Signal Recording System
US3617620A (en) * 1967-05-08 1971-11-02 Matsushita Electric Industrial Co Ltd Method and apparatus for transmitting or recording and reproducing line-sequential color television signals

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0010775A1 (fr) * 1978-11-06 1980-05-14 BASF Aktiengesellschaft Méthodes et dispositions pour transformer des signaux vidéo de couleur dans une sous-porteuse de couleur spéciale qui peut être décodée dans un récepteur de télévision en couleur PAL

Also Published As

Publication number Publication date
US4123774A (en) 1978-10-31
NL7801275A (nl) 1978-08-09
AU513410B2 (en) 1980-11-27
DD138265A5 (de) 1979-10-17
GB1593912A (en) 1981-07-22
SE7801304L (sv) 1978-08-08
AU3283578A (en) 1979-08-09
DK53078A (da) 1978-08-08
JPS5397727A (en) 1978-08-26
ZA78718B (en) 1979-02-28
FR2379961B3 (fr) 1980-10-31
DE2803824A1 (de) 1978-08-17

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Legal Events

Date Code Title Description
ST Notification of lapse