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Machine translation
1. (WO1994016524) A SYSTEM FOR COMPOSITION/DECOMPOSITION OF VIDEO SIGNALS TO ENABLE TO TRANSMIT/RECEIVE AND TO RECORD/PLAYBACK CONTEMPORANEOUSLY TWO TV PROGRAMS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1994/016524    International Application No.:    PCT/IT1994/000002
Publication Date: 21.07.1994 International Filing Date: 07.01.1994
Chapter 2 Demand Filed:    25.07.1994    
IPC:
H04N 5/92 (2006.01), H04N 7/08 (2006.01)
Applicants: BRE.IN. BREVETTI INTERNAZIONALI S.P.A. [IT/IT]; Via Sant'Anna dei Lombardi, 36, I-80134 Napoli (IT) (For All Designated States Except US).
GREGORIO, Giuseppe [IT/IT]; (IT) (For US Only).
GREGORIO, Pietrangelo [IT/IT]; (IT) (For US Only)
Inventors: GREGORIO, Giuseppe; (IT).
GREGORIO, Pietrangelo; (IT)
Agent: BANCHETTI, Marina; Ing. Barzanò & Zanardo Roma S.p.A., Via Piemonte, 26, I-00187 Rome (IT)
Priority Data:
NA93A000001 11.01.1993 IT
Title (EN) A SYSTEM FOR COMPOSITION/DECOMPOSITION OF VIDEO SIGNALS TO ENABLE TO TRANSMIT/RECEIVE AND TO RECORD/PLAYBACK CONTEMPORANEOUSLY TWO TV PROGRAMS
(FR) SYSTEME DE COMPOSITION/DECOMPOSITION DE SIGNAUX VIDEO POUR PERMETTRE LA TRANSMISSION/RECEPTION ET L'ENREGISTREMENT/LECTURE SIMULTANES DE DEUX EMISSIONS DE TELEVISION
Abstract: front page image
(EN)Subject-matter of this invention is a system for composition/decomposition of video signals for transmitting/receiving and for recording/reproducing with alternance of fields two different television programs, wherein, in a transmission/recording operation, the two video signals (V1, V2) of the two different programs are composed by means of a composer device (8; SW) into a single composite video resulting signal [V1 + V2] which includes a field (odd or even rows) of the first signal (V1) and a field (even or odd rows) of the second signal (V2) and, in a reception/reproduction operation, each frame of said video resultant signal [V1 + V2] is decomposed by means of a decomposer device (108; M1, M2) into its component fields (odd and even rows), respectively pertaining the one to said first video signal (V1) and the second to said second video signal (V2), said signals being adapted to be separately utilised after having been passed through a duplicator device (114; A/D-MEM-D/A) which adds to each field obtained by means of said decomposition step an identical field obtained by duplication thereof, in order to re-establish a whole frame.
(FR)Système de composition/décomposition de signaux vidéo pour permettre la transmission/réception et l'enregistrement/restitution en alternance de champs de deux émissions de télévision différentes. Lors d'une opération de transmission/enregistrement, les deux signaux vidéo (V1, V2) des deux émissions différentes sont composés par un dispositif de composition (8; SW) produisant un seul signal vidéo composite [V1, V2] comprenant un champ (lignes paires ou impaires) du premier signal (V1) et un champ (lignes paires ou impaires) du second signal (V2). Lors d'une opération de réception/restitution, chaque image dudit signal vidéo composite [V1 + V2] est décomposée par un dispositif de décomposition (108; M1, M2) en ses champs constitutifs (lignes paires ou impaires) associés respectivement au premier signal vidéo (V1) et au second signal vidéo (V2), ces signaux étant adaptés pour être utilisés séparément après passage dans un dispositif de duplication (114; A/N-MEM-N/A) servant à ajouter à chaque champ obtenu à l'aide de ladite étape de décomposition un champ identique obtenu par duplication de ce champ, afin de reconstituer une image entière.
Designated States: AT, AU, BB, BG, BR, BY, CA, CH, CN, CZ, DE, DK, ES, FI, GB, HU, JP, KP, KR, KZ, LK, LU, LV, MG, MN, MW, NL, NO, NZ, PL, PT, RO, RU, SD, SE, SK, UA, US, VN.
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)