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 frequenceInfo
- 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
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0199162A2 (fr) * | 1985-04-20 | 1986-10-29 | ANT Nachrichtentechnik GmbH | Système de transmission d'informations |
-
1974
- 1974-08-07 FR FR7427463A patent/FR2281620A1/fr active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0199162A2 (fr) * | 1985-04-20 | 1986-10-29 | ANT Nachrichtentechnik GmbH | Système de transmission d'informations |
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 |