BE472632A - - Google Patents

Info

Publication number
BE472632A
BE472632A BE472632DA BE472632A BE 472632 A BE472632 A BE 472632A BE 472632D A BE472632D A BE 472632DA BE 472632 A BE472632 A BE 472632A
Authority
BE
Belgium
Prior art keywords
recording
films
sound
desc
particles
Prior art date
Application number
Other languages
French (fr)
Publication of BE472632A publication Critical patent/BE472632A/fr

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62Record carriers characterised by the selection of the material
    • G11B5/633Record carriers characterised by the selection of the material of cinematographic films or slides with integral magnetic track
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/74Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum

Landscapes

  • Recording Or Reproducing By Magnetic Means (AREA)

Description

       

   <Desc/Clms Page number 1> 
 



  Procédé d'enregistrement magnétique sur films cinématographiques ou autres. 



   L'invention concerne un procédé d'enregistrement sonore sur films. 



   Les procédés existants,en vue d'enregistrer les sons sur films,font appel à la méthode photographique ou mécanographique. 



   L'invention vise à obtenir un enregistrement des sons en se libérant des procédés chimiques ou mécaniques. 



     ' Le   résultat est obtenu par l'incorporation dans le support ou éventuellement dans la gélatine, de particules etrêmement ténues de métal à haute rémanance (Fig. I). 



   La répartition.de ces particules sera homogène. 



  La ténuité de ces mêmes particules et leur espacement seront fonction des fréquences maxima à enregistrer. Ce procédé permet de polariser les particules suivant une ligne perpendiculaire à la tranche du film (Fig. II). 



   Les moyens d'obtenir la polarisation des particules ou de la reproduction des sons enregistrés sont connus, étant appliqués depuis de très nombreuses années, lorsqu' il est gait appel aux procédés d'enregistrement magné- tiques sur   fils¯métalliques.   



   Les avantages de la'présente invention sur les mé- thides usuelles d'enregistrement sonore sur films sont, en ordre principal, les suivants : 

 <Desc/Clms Page number 2> 

 1.- Haute qualité d'enregistrement. 



  2.- Possibilité de sonoriser un film   âpres   déve- loppement de la partie image. 



  3.- Possibilité d'effacer   l'enregistrement   existant et d'y substituer un nouvel enregistrement et cela un nombre infini de fois. 



    4.-   Possibilité de superposer à l'enregistrement existant un enregistrement nouveau, par exemple: commentaires, bruits de fond, etc... 



  5.- Possibilité, par le principe   même,d'obtenir   des pistes extrêmement étroites et cela par concen- tration du flux magnétique. 



   Cet avantage permet a)   l'emploi   de pistes   mu@iles   sur les films sonores normaux. b) la sonorisation sur des films fort étroits où jusqu'à présent la place faisait défaut pour un enregistrement photographique ou mécanique. c) pour des usages spéciaux l'enregistrement .d'un nombre considérable de pistes sur une 
 EMI2.1 
 largeur- lLJ1Í tée.. 

**ATTENTION** fin du champ DESC peut contenir debut de CLMS **.



   <Desc / Clms Page number 1>
 



  Magnetic recording process on cinematographic or other films.



   The invention relates to a method of recording sound on films.



   The existing processes, with a view to recording sounds on films, use the photographic or mechanical method.



   The invention aims to obtain a recording of sounds by freeing themselves from chemical or mechanical processes.



     The result is obtained by the incorporation into the support or optionally into the gelatin of extremely fine particles of high remanence metal (FIG. I).



   The distribution of these particles will be homogeneous.



  The thinness of these same particles and their spacing will depend on the maximum frequencies to be recorded. This process allows the particles to be polarized along a line perpendicular to the edge of the film (Fig. II).



   The means of obtaining the polarization of the particles or of the reproduction of the recorded sounds are known, being applied for many years, when it is necessary to resort to the methods of magnetic recording on metallic wires.



   The advantages of the present invention over the usual methods of sound recording on films are, in principal order, the following:

 <Desc / Clms Page number 2>

 1.- High recording quality.



  2.- Possibility of adding sound to a film after development of the image part.



  3.- Possibility of deleting the existing recording and replacing it with a new recording an infinite number of times.



    4.- Possibility of superimposing a new recording on the existing recording, for example: comments, background noise, etc ...



  5.- Possibility, by the very principle, of obtaining extremely narrow tracks and this by concentrating the magnetic flux.



   This advantage allows a) the use of mu @ iles tracks on normal sound films. b) the sound system on very narrow films where until now space was lacking for a photographic or mechanical recording. c) for special purposes the recording of a considerable number of tracks on a
 EMI2.1
 width- lLJ1Í tee ..

** ATTENTION ** end of DESC field can contain start of CLMS **.


    

Claims (1)

Résumé : L'invention a pour objet : Un procédé nouveau d'enregistrement sonore sur films (accompagnés ou non d'images) et caractérisé par l'incorporation dans le support ou la gélatine de particules extrêmement ténues à haute rémanance, per- mettant de réaliser un enregistrement sonore magnétique de haute qualité. **ATTENTION** fin du champ CLMS peut contenir debut de DESC **. Summary : The subject of the invention is: A new process for recording sound on films (whether or not accompanied by images) and characterized by the incorporation into the support or gelatin of extremely fine particles with high remanence, making it possible to achieve high quality magnetic sound recording. ** CAUTION ** end of field CLMS may contain start of DESC **.
BE472632D BE472632A (en)

Publications (1)

Publication Number Publication Date
BE472632A true BE472632A (en)

Family

ID=122146

Family Applications (1)

Application Number Title Priority Date Filing Date
BE472632D BE472632A (en)

Country Status (1)

Country Link
BE (1) BE472632A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2183045A1 (en) * 1972-05-01 1973-12-14 Eastman Kodak Co

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2183045A1 (en) * 1972-05-01 1973-12-14 Eastman Kodak Co

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