monitorschaltung for a videobandrecorder

摘要

the invention provides a monitorschaltung for a videobandrecorder, containing a bildaufzeichnungsselektor to select the recording by the change of state between a lichtemittierenden part and a lichtabsorbierenden part, a schalterteil notes of aufzeichnu ngssteuersignals to the output stage of the selektors,logikkomponenten notes of steuersignals of schalterkreises by aufzeichnungssteuersignal and termination of wu00e4hlschalters on aufzeichnungsbetrieb, pip - block to release the picture signals of the cameras and the tuner, selected by the control signal of the logikkomponenten in the schalterkreis and bildaufzeichnungskarte for recording of the pip signal on the videokopf.the record of the change of state only in the case that the specified field of an intruder enters, makes it necessary to the monitorbetrieb only in the necessary time with the help of the videobandrecorders and the video camera to record, bandmaterial to save.