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Priority claimed from EP91306556Aexternal-prioritypatent/EP0523299A1/en
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Publication of TW232115BpublicationCriticalpatent/TW232115B/zh
H04N5/222—Studio circuitry; Studio devices; Studio equipment
H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects