Using a simplified, fully
digital signal path and ultra-high frequency noise shaping, S - Master HX reproduces the subtleties and wide frequency range that music and movies demand.
Not exact matches
Digital baby monitors still operate on a frequency, often 2.4 GHz, (though you won't often see frequency listed on the package, strangely enough), but the
signal is encrypted so that others can't hear what's happening in your household when those
signals cross
paths.
The most reliable
path to patent protection on computer implemented inventions, encoding / decoding methods,
signal and image processing methods,
digital modulation schemes in Poland, still leads through the EPO — exactly as designed in the European Patent Convention (EPC) having patent granted by the EPO and then validated.
I know that upsampling can eliminate
digital artifacts, but without knowing more about the components in the
signal path or how the
signal is processed, it's hard to say if that claim is more than just marketing fluff.