FR2559633B1 - METHOD AND DEVICE FOR INVERTING A TELEVISION VIDEO SIGNAL - Google Patents

METHOD AND DEVICE FOR INVERTING A TELEVISION VIDEO SIGNAL

Info

Publication number
FR2559633B1
FR2559633B1 FR8402043A FR8402043A FR2559633B1 FR 2559633 B1 FR2559633 B1 FR 2559633B1 FR 8402043 A FR8402043 A FR 8402043A FR 8402043 A FR8402043 A FR 8402043A FR 2559633 B1 FR2559633 B1 FR 2559633B1
Authority
FR
France
Prior art keywords
inverting
video signal
television video
television
signal
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
FR8402043A
Other languages
French (fr)
Other versions
FR2559633A1 (en
Inventor
Jean-Luc Michel Armand Foure
Gerard Claude Bernard Moline
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.)
Laboratoire Central de Telecommunications SA
Original Assignee
Laboratoire Central de Telecommunications SA
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 Laboratoire Central de Telecommunications SA filed Critical Laboratoire Central de Telecommunications SA
Priority to FR8402043A priority Critical patent/FR2559633B1/en
Publication of FR2559633A1 publication Critical patent/FR2559633A1/en
Application granted granted Critical
Publication of FR2559633B1 publication Critical patent/FR2559633B1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/167—Systems rendering the television signal unintelligible and subsequently intelligible
    • H04N7/171—Systems operating in the amplitude domain of the television signal
    • H04N7/1716—Systems operating in the amplitude domain of the television signal by inverting the polarity of active picture signal portions
FR8402043A 1984-02-10 1984-02-10 METHOD AND DEVICE FOR INVERTING A TELEVISION VIDEO SIGNAL Expired FR2559633B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8402043A FR2559633B1 (en) 1984-02-10 1984-02-10 METHOD AND DEVICE FOR INVERTING A TELEVISION VIDEO SIGNAL

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8402043A FR2559633B1 (en) 1984-02-10 1984-02-10 METHOD AND DEVICE FOR INVERTING A TELEVISION VIDEO SIGNAL

Publications (2)

Publication Number Publication Date
FR2559633A1 FR2559633A1 (en) 1985-08-16
FR2559633B1 true FR2559633B1 (en) 1989-01-13

Family

ID=9300929

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8402043A Expired FR2559633B1 (en) 1984-02-10 1984-02-10 METHOD AND DEVICE FOR INVERTING A TELEVISION VIDEO SIGNAL

Country Status (1)

Country Link
FR (1) FR2559633B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4924498A (en) * 1988-04-29 1990-05-08 Scientific Atlanta, Inc. Method and apparatus for improving video scrambling and employing split snyc pulses

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1602119A (en) * 1977-11-18 1981-11-04 Shiu Hung Cheung Pay-tv system
GB2042846B (en) * 1979-02-20 1983-05-11 Payview Ltd Secret television
US4257065A (en) * 1979-12-17 1981-03-17 Pay Television Corporation Video clamp and inverter circuit

Also Published As

Publication number Publication date
FR2559633A1 (en) 1985-08-16

Similar Documents

Publication Publication Date Title
FR2486342B1 (en) VIDEO INSPECTION SYSTEM AND METHOD
FR2586120B1 (en) METHOD AND DEVICE FOR SEQUENTIAL IMAGE TRANSFORMATION
FR2677198B1 (en) METHOD AND DEVICE FOR IMPROVING THE QUALITY OF A TELECOMMUNICATION SIGNAL.
FR2526621B1 (en) METHOD AND DEVICE FOR REDUCING THE THROUGHPUT OF A DIGITAL DATA TRAIN
FR2600478B1 (en) METHOD AND DEVICE FOR FREEZING A TELEVISION IMAGE
FR2738441B1 (en) IMAGE SIGNAL CODING DEVICE AND METHOD
FR2437133B1 (en) TELEVISION METHOD AND DEVICE FOR THE REPRESENTATION AND RECORDING OF TRAJECTORIES
FR2501446B1 (en) DIGITAL VIDEO RECORDING FORMAT AND TELEVISION DIGITAL SIGNAL RECORDING DEVICE
FR2537308B1 (en) INFORMATION TRANSMISSION METHOD AND DEVICE
BE883440A (en) WATERPROOFING METHOD AND DEVICE
FR2509556B1 (en) IMAGE SCANNING AND RECORDING DEVICE
FR2498848B1 (en) METHOD FOR WEAKENING A DIGITAL SIGNAL AND DEVICE FOR CARRYING OUT THIS METHOD
FR2542539B1 (en) PROCESS AND SYSTEM FOR RECORDING TRANSFORMED IMAGES
FR2559002B1 (en) METHOD AND DEVICE FOR DETECTING AUDIOVISUAL INFORMATION BROADCASTED BY A TRANSMITTER
FR2600477B1 (en) CIRCUIT METHOD AND DEVICE FOR NON-LINEAR TRANSMISSION OF A VIDEO SIGNAL
FR2577096B1 (en) IMAGE PROCESSING DEVICE AND METHOD
FR2597985B1 (en) METHOD AND DEVICE FOR TAKING VIEWS OF AN OBJECT LINE BY LINE
FR2511706B1 (en) ELECTRODEPOSITION METHOD AND DEVICE
JPS57195282A (en) Display method and apparatus by video signal
FR2470494B1 (en) METHOD AND DEVICE FOR CHANGING THE PACE OF A SIGNAL
FR2559633B1 (en) METHOD AND DEVICE FOR INVERTING A TELEVISION VIDEO SIGNAL
FR2680058B1 (en) METHOD AND DEVICE FOR SYNCHRONIZING A SIGNAL.
FR2619943B1 (en) CASING METHOD AND DEVICE
FR2549878B1 (en) DEVICE AND METHOD FOR FITTING UP ROOFS
FR2552880B1 (en) METHOD AND DEVICE FOR RECONSTRUCTING AN ANALOGUE SIGNAL

Legal Events

Date Code Title Description
ST Notification of lapse