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Machine translation
1. (WO1981000945) AUTOMATIC CIRCUIT AND METHOD FOR EDITING COMMERCIAL MESSAGES FROM TELEVISION SIGNALS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1981/000945    International Application No.:    PCT/US1980/001201
Publication Date: 02.04.1981 International Filing Date: 18.09.1980
IPC:
G11B 27/024 (2006.01), H04N 17/06 (2006.01)
Applicants:
Inventors:
Priority Data:
77733 20.09.1979 US
Title (EN) AUTOMATIC CIRCUIT AND METHOD FOR EDITING COMMERCIAL MESSAGES FROM TELEVISION SIGNALS
(FR) CIRCUIT AUTOMATIQUE ET PROCEDE D'EDITION DE MESSAGES PUBLICITAIRES A PARTIR DE SIGNAUX DE TELEVISION
Abstract: front page image
(EN)In order to delete commercial messages during the viewing and/or video tape recording of broadcast television signals a control circuit (11) is disclosed for producing a commercial editing control signal at the beginning of one or more television commercial messages, which signal continues for the duration of such messages and terminates after the end of the last of such messages. The control circuit (11) incorporates detection circuitry (48) for automatically detecting each of a series of fade breaks in the video and audio components of the television signal, wherein such fade breaks normally mark the beginning and end of each of one or more commercial messages that have been inserted in the program content. The first of a series of detected fade breaks marks the beginning of a single commercial or the first commercial in a consecutive block of commercials, and succeeding fade breaks occur at time intervals that correspond to the durations of the commercial messages. Cooperating with the circuitry for detecting the series of fade breaks (48) is electrical timing circuitry (60) which is triggered to cause the generation of the above-mentioned editing control signal. The timing circuitry (60) has a time out interval that is selected to be just slightly longer than the maximum anticipated length of each of the consecutive commercial messages, and is retriggered each time another fade break is detected. A steady control signal is thus generated which continues until the timing circuitry (60) is allowed to time out because of the absence of detected fade breaks, indicating the resumption of non-commercial program content. In the form of the control circuitry disclosed herein, the automatically generated control signal is used to operate a pause control (22) on a video tape recorder for momentarily stopping the recorder during the occurrence of one or more consecutive commercial messages.
(FR)Pour eliminer les messages publicitaires pendant la projection et/ou l'enregistrement sur bande video de signaux de television, un circuit de commande (11) produit un signal de commande d'edition publicitaire au debut d'un ou de plusieurs messages publicitaires de television, lequel signal continue pendant la duree de ces messages et se termine a la fin du dernier de ces messages. Le circuit de commande (11) comprend un reseau de circuit de detection (48) pour detecter automatiquement chacune des coupures graduelles dans les composantes video et audio du signal de television, lesquelles coupures de disparition graduelles marquent normalement le debut et la fin de chacun de ces messages publicitaires qui ont ete introduits dans le programme. La premiere d'une serie de coupures graduelles detectee marque le debut d'une publicite ou de la premiere publicite d'une serie de publicites consecutives, et des coupures graduelles successives ont lieu a des intervalles de temps qui correspondent aux durees des messages publicitaires. Un circuit electrique de synchronisation (60) coopere avec le reseau de circuit de detection de la serie de coupures graduelles (48), lequel circuit de synchronisation (60) possede un intervalle de temporisation qui est choisi juste legerement plus grand que la longueur maximum prevue pour chacun des messages publicitaires consecutifs, et il est redeclenche a chaque fois qu'une autre coupure graduelle est detectee. Un signal de commande stable est ainsi produit qui se poursuit jusqu'a la fin de la temporisation du circuit de temporisation (60), fin qui se produit a cause de l'absence de detection de coupures, indiquant la reprise du programme non publicitaire. Dans un circuit de commande co-decrit, le signal de commande genere automatiquement est utilise pour actionner une commande de pause (22) sur un enregistreur a bande video pour arreter momentanement l'enregistreur pendant un ou plusieurs messages publicitaires consecutifs.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)