| 摘要 |
<p>The coding of the switching signals in a signal train takes place by generating a level value for each switching signal according to the number of the signals to be coded. The number is provided by a preset quantising raster. A time function value, such as a pulse duration is also used, or a rising value, or a frequency. The decoding from the signal train takes place by coincidence evaluation of a differently programmed response threshold for each coded signal. The decoding also takes into consideration the level and the time function value. The excess of a programmed level threshold value, with simultaneous excess of a programmed time function threshold value corresponds to a switching signal, associated to these threshold values by decoding. Quantising rasters of the level values and the time values are used as coding and decoding instructions.</p> |
