A digital signal processing circuit for processing and recording data at various selectable rates, having an input/output circuit for receiving and outputting a digital signal; a recording circuit for generating a recording signal based on a digital signal received by the data signal processing circuit;...http://www.google.fr/patents/US5477396?utm_source=gb-gplus-shareBrevet US5477396 - Apparatus for recording/reproducing digital signals at various speeds
Apparatus for recording/reproducing digital signals at various speeds
