Statements (24)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
sound-on-film technology
|
| gptkbp:commercialUse |
gptkb:De_Forest_Phonofilm_Company
|
| gptkbp:competitor |
gptkb:Movietone
gptkb:Vitaphone |
| gptkbp:countryOfOrigin |
gptkb:United_States
|
| gptkbp:declinedAfter |
late 1920s
|
| gptkbp:firstDemonstrated |
April 15, 1923
|
| gptkbp:firstPublicDemonstrationLocation |
gptkb:Rivoli_Theater,_New_York_City
|
| https://www.w3.org/2000/01/rdf-schema#label |
Phonofilm
|
| gptkbp:introducedIn |
1923
|
| gptkbp:inventedBy |
gptkb:Lee_de_Forest
|
| gptkbp:notableFilm |
gptkb:A_Few_Moments_with_Eddie_Cantor,_Star_of_'Kid_Boots'
gptkb:Ben_Bernie_and_All_the_Lads gptkb:President_Coolidge,_Taken_on_the_White_House_Grounds |
| gptkbp:notableFor |
early sound films
|
| gptkbp:patent |
gptkb:Lee_de_Forest
|
| gptkbp:relatedTo |
sound film history
|
| gptkbp:replacedBy |
gptkb:Movietone
gptkb:Vitaphone |
| gptkbp:technology |
optical sound recording
|
| gptkbp:usedBy |
early short films
|
| gptkbp:usedFor |
synchronizing sound with motion pictures
|
| gptkbp:bfsParent |
gptkb:Lee_de_Forest
|
| gptkbp:bfsLayer |
4
|