In its decision Digitalblock (digital block) the Higher Regional Court of Düsseldorf (Oberlandesgericht Düsseldorf) has discussed the question whether “sleeping” features of a device can cause patent infringement (judgement of 19 February 2015, docket No. I-15 U 39/14). The case was about set-top boxes for receiving free-to-air and encrypted television signals. The patent concerned a…