Abstract: For a method of encoding digital data of arbitrary data rates of at least one data signal for jointly transmitting the encoded data with a digital picture signal, as well as a data encoder for such data, a flexible adaptation to different data formats is provided in which, in the encoding of data, at least parts of the edges of data bits of the data signal are replaced by synthetically generated amplitude values constitutes edges which are within the bandwidth limitations predetermined for the encoded data bits.

Abstract: At least a first and a second digital signal, both in parallel form, are converted to a single serial signal and transmitted from a digital color decoder to a signal processing unit so as to avoid picture disturbances in the signal processing unit. The first digital signal is dependent on the instantaneous value of a clock frequency used in the decoder for processing a digital color picture signal, and the second digital signal is dependent on the instantaneous value of a chrominance subcarrier frequency generated in the decoder and used for color decoding.

Abstract: A method of and an arrangement for suppressing noise in a digital signal obtained by sampling an analog signal, more specifically a television signal, provide that always for two successive sample values, depending on their difference value, the second sample value is replaced by the preceding one if a predeterminable difference value is fallen short of.

Abstract: A circuit arrangement for identifying the transmission standard of a color television signal, having a chrominance subcarrier upon which chrominance information is modulated and color synchronising pulses, includes circuitry (14, 21, 24, 25) for determining the frequency of the chrominance subcarrier which, in those cases in which a given standard of the color television signal can unambiguously be concluded from the determined chrominance subcarrier frequency of the color television signal to be decoded, the decoder is immediately switched to the decoding of this signal of this standard, and in addition includes circuitry (23, 22) which determine the vertical deflection frequency of the television signal and ascertain whether the chrominance subcarrier has a line-sequentially alternating phase, and that in those cases in which the determined chrominance subcarrier frequency cannot unambiguously be assigned to a given standard, these information components are also used for identifying the standard of the col

Abstract: The invention relates to a digital low-pass filter which effects a frequency reduction by a factor which is equal to the ratio w/2 between the frequency of the input signal and the frequency of the output signal, wherein w is an odd integer. The input signal is applied to m series-arranged registers. The input signal of the first and the output signals of all the registers are multiplied by coefficients. A change-over switch precedes an input of each multiplier, the change-over switch switching the coefficients symmetrically. The switching instants are always symmetrical relative to a reference sampling instant. The filter is particularly suitable for use in video signal processing, to reduce negative influences of an analog-to-digital converter.