Patent ID: 6292223
Filing Date: 2001-09-18
Classification: H04N

Abstract:
A receiving device for receiving video signals and teletext signals comprising:a video signal processing device;a teletext processing device configured to decode an input teletext signal and to provide the decoded teletext signal for display thereof, said teletext processing device including:a clamping circuit having an input for receiving the input teletext signal,an analog to digital converter device connected downstream from said clamping circuit,a control device for correctly timing separation of the input teletext signal from a video signal, said control device connected downstream from said analog to digital converter device, anda switching device having an output connected to said analog to digital converter device, said switching device including a first input to which the input teletext signal can be fed and including a second input to which at least one analog signal that is independent of the video signal and that is independent of the teletext signal can be fed;said switching device configured for control by said control device such that, in time slots in which no teletext signal can be separated from the video signal, said switching device will feed the analog signal that is independent of the video signal and that is independent of the teletext signal to said analog to digital converter device.