FR2113933B1 - - Google Patents

Info

Publication number
FR2113933B1
FR2113933B1 FR7140504A FR7140504A FR2113933B1 FR 2113933 B1 FR2113933 B1 FR 2113933B1 FR 7140504 A FR7140504 A FR 7140504A FR 7140504 A FR7140504 A FR 7140504A FR 2113933 B1 FR2113933 B1 FR 2113933B1
Authority
FR
France
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
FR7140504A
Other languages
French (fr)
Other versions
FR2113933A1 (enrdf_load_stackoverflow
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of FR2113933A1 publication Critical patent/FR2113933A1/fr
Application granted granted Critical
Publication of FR2113933B1 publication Critical patent/FR2113933B1/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
    • H04N7/147—Communication arrangements, e.g. identifying the communication as a video-communication, intermediate storage of the signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
    • H04N7/084—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the horizontal blanking interval only
    • H04N7/085—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the horizontal blanking interval only the inserted signal being digital
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
    • H04N7/087—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only
    • H04N7/088—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only the inserted signal being digital
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/24—Systems for the transmission of television signals using pulse code modulation
    • H04N7/52—Systems for transmission of a pulse code modulated video signal with one or more other pulse code modulated signals, e.g. an audio signal or a synchronizing signal
    • H04N7/54—Systems for transmission of a pulse code modulated video signal with one or more other pulse code modulated signals, e.g. an audio signal or a synchronizing signal the signals being synchronous
    • H04N7/56—Synchronising systems therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Systems (AREA)
  • Synchronizing For Television (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
FR7140504A 1970-11-13 1971-11-12 Expired FR2113933B1 (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7016628A NL7016628A (enrdf_load_stackoverflow) 1970-11-13 1970-11-13

Publications (2)

Publication Number Publication Date
FR2113933A1 FR2113933A1 (enrdf_load_stackoverflow) 1972-06-30
FR2113933B1 true FR2113933B1 (enrdf_load_stackoverflow) 1977-03-18

Family

ID=19811548

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7140504A Expired FR2113933B1 (enrdf_load_stackoverflow) 1970-11-13 1971-11-12

Country Status (11)

Country Link
JP (1) JPS5227974B1 (enrdf_load_stackoverflow)
AU (1) AU3551771A (enrdf_load_stackoverflow)
CA (1) CA940244A (enrdf_load_stackoverflow)
CH (1) CH542560A (enrdf_load_stackoverflow)
DE (1) DE2152877C3 (enrdf_load_stackoverflow)
ES (1) ES396900A1 (enrdf_load_stackoverflow)
FR (1) FR2113933B1 (enrdf_load_stackoverflow)
GB (1) GB1321749A (enrdf_load_stackoverflow)
IT (1) IT942819B (enrdf_load_stackoverflow)
NL (1) NL7016628A (enrdf_load_stackoverflow)
SE (1) SE365691B (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4253115A (en) 1978-10-05 1981-02-24 Thomson-Csf Process for the transmission of an audiofrequency analog signal during line-frame synchronization intervals of a television signal and apparatus for performing this process

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2389290A1 (fr) * 1977-04-29 1978-11-24 Briand Marcel Dispositif d'emission et de reception par lignes analogiques de signaux visiophoniques et de signaux numeriques
FR2440669A1 (fr) * 1978-10-31 1980-05-30 Thomson Brandt Systeme de diffusion de signaux audio-visuels de television synchronises par une frequence pilote et procede de mise en oeuvre
IL58735A (en) * 1978-12-04 1982-01-31 Oak Industries Inc Subscription television coding system
ATE15311T1 (de) * 1980-01-22 1985-09-15 Paul Pierre Delogne Verfahren und anlage zur uebertragung von fernsehsignalen mittels einer digitalen codierung dieser signale.
FR2524242B1 (fr) * 1982-03-24 1986-02-07 Radiotechnique Circuit de reconnaissance de cryptage pour systeme de transmission d'emissions de television et systeme de transmission d'emissions cryptees comprenant un tel circuit
FR2524241A1 (fr) * 1982-03-24 1983-09-30 Radiotechnique Circuit de commande du dispositif de decryptage d'un systeme de transmission d'emissions de television cryptees et systeme de transmission d'emissions cryptees comportant un tel circuit
US4675722A (en) * 1982-12-02 1987-06-23 Independent Broadcasting Authority Apparatus for deriving synchronization signals for component television video signal reception
FR2552282B1 (fr) * 1983-09-21 1990-07-13 Veillard Jacques Procede et dispositif de demodulation coherente de porteuse a modulation numerique

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4253115A (en) 1978-10-05 1981-02-24 Thomson-Csf Process for the transmission of an audiofrequency analog signal during line-frame synchronization intervals of a television signal and apparatus for performing this process

Also Published As

Publication number Publication date
IT942819B (it) 1973-04-02
CA940244A (en) 1974-01-15
JPS5227974B1 (enrdf_load_stackoverflow) 1977-07-23
AU3551771A (en) 1973-05-17
FR2113933A1 (enrdf_load_stackoverflow) 1972-06-30
DE2152877A1 (de) 1972-05-31
GB1321749A (en) 1973-06-27
DE2152877B2 (de) 1978-01-19
SE365691B (enrdf_load_stackoverflow) 1974-03-25
NL7016628A (enrdf_load_stackoverflow) 1972-05-16
DE2152877C3 (de) 1978-09-14
ES396900A1 (es) 1975-05-01
AU465455B2 (enrdf_load_stackoverflow) 1975-09-25
CH542560A (de) 1973-09-30

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Legal Events

Date Code Title Description
ST Notification of lapse