Apparatus and method for the suppression of disturbances in input signals with a sequence of digital useful signals

摘要

A method for the suppression of disturbances (31, 33, 33 '', 33 ", 45, 45'') in the input signals, in which a sequence of digital useful signals (9, 9 '', 30, 30'', 30"), the duration of each with a predetermined maximum useful signal duration, and the in order to achieve a useful signal pause are spaced apart from one another, the duration of which lies above a predetermined minimum period of time, in which an input signal is amplified in a controlled manner, whereby in the regulation of the amplified input signal with a rise in - and decay time constant may be integrated, and for controlling the gain is returned, wherein the values of the increase in - and decay time constant as a function of the maximum useful signal duration and / or the minimum duration of the wanted signal pause are predetermined, in which the increase in - or decay time constant, depending on whether the level of the actuating signal of the regulation of a predetermined time constant reference level, to one of two predetermined values is set or in the case of which it is checked whether, since an activation time, to which the amplified input signal has exceeded an activation threshold value, a first period of time, the longer than the maximum..