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1. (EP0806117) COMB FILTER MODULE WITH BOTH COMPOSITE AND Y/C-SEPARATED INPUTS

Office : European Patent Office
Application Number: 96935228 Application Date: 07.11.1996
Publication Number: 0806117 Publication Date: 12.11.1997
Publication Kind : A1
Designated States: DE, FR, GB
Prior PCT appl.: Application Number:IB1996001194 ; Publication Number: Click to see the data
IPC:
H 04N
H04N 9/00
H04N 9/78
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
N
PICTORIAL COMMUNICATION, e.g. TELEVISION
9
Details of colour television systems
77
Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase
78
for separating the brightness signal or the chrominance signal from the colour television signal, e.g. using comb filter
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
N
PICTORIAL COMMUNICATION, e.g. TELEVISION
9
Details of colour television systems
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
N
PICTORIAL COMMUNICATION, e.g. TELEVISION
9
Details of colour television systems
77
Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase
78
for separating the brightness signal or the chrominance signal from the colour television signal, e.g. using comb filter
CPC:
H04N 9/78
Applicants: PHILIPS ELECTRONICS NV
Inventors: KELSALL EDWARD NEIL
FARROW IAN EDMOND
Priority Data: 9523953 23.11.1995 GB
9601194 07.11.1996 IB
Title: (DE) KAMMFILTERANORDNUNG MIT FBAS UND GETRENNTEN Y/C EINGÄNGEN
(EN) COMB FILTER MODULE WITH BOTH COMPOSITE AND Y/C-SEPARATED INPUTS
(FR) MODULE DE FILTRE EN PEIGNE A ENTREES A LA FOIS COMPOSITES ET Y/C SEPAREES
Abstract:
(EN) A comb filter module (10) having an input (16(2)) for a composite video signal (Vd1), a comb filter circuit (20), comprising a glass delay line (12) and an associated circuit (13), for separating the composite video signal into Y and C signal components, includes further inputs (16(3), 16(4)) for a second video signal (Vd2) comprising separate Y and C components, e.g. an S-VHS signal, and switching means (25) operable selectively to supply either the Y and C signals from the comb filter circuit or from the further inputs to the module outputs. In a television apparatus the module conveniently provides in one unit both comb filtering and a video signal switch functions.
(FR) L'invention porte sur un module de filtre en peigne (10) comportant une entrée (16(2)) pour signal vidéo composite (Vd1), un circuit de filtre en peigne (20), une ligne à retard au quartz (12) et un circuit associé (13), servant à séparer le signal vidéo composite en composantes de signal Y et C, des entrées additionnelles (16(3)) (16(4)) permettent d'introduire un deuxième signal vidéo (Vd2) présentant des composantes Y et C séparées, par exemple un signal S-VHS, et un moyen de commutation (25) sélectif permettant de transférer les signaux Y et C du circuit du filtre en peigne, ou des autres entrées vers les sorties du circuit. Dans un appareil de télévision, ledit module réunit en une seule unité les fonctions de filtrage par filtre en peigne et de commutation des signaux vidéo.
Also published as:
JPH11504488 KR1019980701604WO/1997/019563