FR2281620A1 - Systeme d'enregistrement et de restitution de signaux video ou acoustiques, utilisant un appareillage reducteur de bruit a signaux porteurs modules en basse frequence - Google Patents

Systeme d'enregistrement et de restitution de signaux video ou acoustiques, utilisant un appareillage reducteur de bruit a signaux porteurs modules en basse frequence

Info

Publication number
FR2281620A1
FR2281620A1 FR7427463A FR7427463A FR2281620A1 FR 2281620 A1 FR2281620 A1 FR 2281620A1 FR 7427463 A FR7427463 A FR 7427463A FR 7427463 A FR7427463 A FR 7427463A FR 2281620 A1 FR2281620 A1 FR 2281620A1
Authority
FR
France
Prior art keywords
signal
frequency
information carrying
convertor
frequency range
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
FR7427463A
Other languages
English (en)
Other versions
FR2281620B3 (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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7427463A priority Critical patent/FR2281620A1/fr
Publication of FR2281620A1 publication Critical patent/FR2281620A1/fr
Application granted granted Critical
Publication of FR2281620B3 publication Critical patent/FR2281620B3/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/02—Transference of modulation from one carrier to another, e.g. frequency-changing by means of diodes
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
FR7427463A 1974-08-07 1974-08-07 Systeme d'enregistrement et de restitution de signaux video ou acoustiques, utilisant un appareillage reducteur de bruit a signaux porteurs modules en basse frequence Granted FR2281620A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7427463A FR2281620A1 (fr) 1974-08-07 1974-08-07 Systeme d'enregistrement et de restitution de signaux video ou acoustiques, utilisant un appareillage reducteur de bruit a signaux porteurs modules en basse frequence

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7427463A FR2281620A1 (fr) 1974-08-07 1974-08-07 Systeme d'enregistrement et de restitution de signaux video ou acoustiques, utilisant un appareillage reducteur de bruit a signaux porteurs modules en basse frequence

Publications (2)

Publication Number Publication Date
FR2281620A1 true FR2281620A1 (fr) 1976-03-05
FR2281620B3 FR2281620B3 (fr) 1977-06-03

Family

ID=9142213

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7427463A Granted FR2281620A1 (fr) 1974-08-07 1974-08-07 Systeme d'enregistrement et de restitution de signaux video ou acoustiques, utilisant un appareillage reducteur de bruit a signaux porteurs modules en basse frequence

Country Status (1)

Country Link
FR (1) FR2281620A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0199162A3 (en) * 1985-04-20 1988-09-14 Ant Nachrichtentechnik Gmbh Information transmission system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0199162A3 (en) * 1985-04-20 1988-09-14 Ant Nachrichtentechnik Gmbh Information transmission system

Also Published As

Publication number Publication date
FR2281620B3 (fr) 1977-06-03

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Legal Events

Date Code Title Description
ST Notification of lapse