Abstract: The modification of cost related aspects of an information signal is controlled so that a composite objective quality measurement of the information signal meets a predetermined quality criterion. Correlation results are combined with results of objective metrics for the modified signal to derive the composite objective quality measurement for the modified signal. The correlation results are determined from a statistical analysis that correlates the subjective ratings with results of the objective quality metrics for similar signals. The objective quality metrics are selected for determining the composite objective quality measurement. The subjective ratings are obtained from multiple human using the similar signals. The objective quality metrics of the similar information signals are selected so as to provide the closest correlation between the subjective ratings and the resulting composite objective quality measurement.

Abstract: A television signal receiver (television apparatus, video recorder, CDI player) executes a plurality of processing operations to be executed (sync separation, subcarrier regeneration, color decoding, teletext) with a central processing unit (4). Each processing operation is stored in the form of a control program in a memory (10). The processing operations to be actually executed are selected and time-sequentially executed by the processing unit. The control programs to be executed are selected in dependence upon operating signals (TXT, PIP) or signal recognition (PAL, NTSC). Qualitatively different versions of some control programs are stored and the version which can be executed at the available processing capacity is selected.

Abstract: Television signal receiver (television apparatus, video recorder, CDI player) in which the plurality of processing operations to be executed (sync separation, subcarrier regeneration, color decoding, teletext) is executed by a central processing unit (4). Each processing operation is stored in the form of a control program in a memory (10). The processing operations to be actually executed are selected and time-sequentially executed by the processing unit. The control programs to be executed are selected in dependence upon operating signals (TXT, PIP) or signal recognition (PAL, NTSC). Qualitatively different versions of some control programs are stored and the version which can be executed at the available processing capacity is selected.

Abstract: A method of, a device for, and a storage medium for recovering horizontal synchronization from a TV-signal with the use of a PLL. The number of periods during which a predetermined degree of synchronization persists is counted and the result of the counting decreases the bandwidth of the PLL when the number of periods increases.

Abstract: In a video signal processing circuit with a field memory circuit (9) for, a field frequency doubling of a first video signal and a second video signal, in which the second video signal can be displayed in a sub-picture of the main picture determined by the first video signal, it is not necessary to use an additional field memory for obtaining the sub-picture if a line memory circuit (157) is used for temporarily storing the second video signal (65) which is not synchronized with the first video signal (1). During line retrace periods of the first video signal, the second video signal is then transferred (31, 29, 5, 7; 19, 35, 13; 105, 103, 101, 107, 99) from this line memory circuit to a section (39) of the field memory circuit (9) corresponding to the sub-picture.