This paper proposes the fixed-off-time pulse coding modulation (PCM) for single-phase direct ac-ac converters in induction heating (IH) systems, which achieves fixed-frequency control of the direct ac ...

On July 14, MP3 audio data reduction will be a quarter of a century old – A success story from Germany that is far from over.

A study is presented on the digital coding of speech by means of a straightforward approximation of the time waveform. In particular, the closely related discrete-time discrete-amplitude signal ...