H - Electricity – 04 – N
Patent
H - Electricity
04
N
H04N 5/272 (2006.01) G11B 27/034 (2006.01) H04N 5/278 (2006.01) H04N 5/92 (2006.01) H04N 5/783 (2006.01) H04N 5/926 (2006.01) H04N 5/445 (2006.01)
Patent
CA 2200335
Video information intended to be reproduced on a television screen (1) often includes additional information such as graphics information (3) or subtitles (4) in addition to the main information such as film images (2). This additional information is transmitted separately, so that the user may choose whether the additional information is to be displayed or not. In the disclosed method the transmitted video signal comprises information relating to the duration (25) for which the additional information is to remain on the display. With this method the additional information can be displayed exactly for the duration of the desired time. When a video disc or tape is used for transferring video information, this is advantageous in trick modes, such as Fast Forward.
Les informations vidéo destinées à être reproduites sur un écran de télévision (1) contiennent souvent des informations supplémentaires telles que des informations graphiques (3) ou des sous-titres (4), qui s'ajoutent aux informations principales telles que les images de film (2). Ces informations supplémentaires sont transmises séparément, de sorte que l'utilisateur puisse choisir de les afficher ou non. L'invention concerne un procédé, selon lequel le signal vidéo transmis contient des informations concernant la durée d'affichage (25) des informations supplémentaires. Ce procédé permet d'afficher ces informations supplémentaires pendant une période correspondant exactement à la durée souhaitée. Si un vidéodisque ou une cassette vidéo est utilisé pour transférer les informations vidéo, ce procédé est avantageux en mode recherche, par exemple en avance rapide.
Fetherstonhaugh & Co.
Koninklijke Philips Electronics N.v.
Philips Electronics N.v.
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