DIGITAL SWITCHING SIGNAL SEQUENCE FOR SWITCHING PURPOSES APPARATUS FOR INCLUDING SAID DIGITAL SWITCHING SIGNAL SEQUENCE IN A DIGITAL AUDIO INFORMATION SIGNAL AND APPARATUS FOR RECEIVING THE INFORMATION SIGNAL PROVIDED WITH THE SWITCHING SIGNAL SEQUENCE

摘要

Using a high-pass cut-off frequency (FIG. 5) where a digital switching signal sequence is proposed and, if possible, the volume threshold characteristic of human hearing at silence lies above the frequency with its highest sensitivity, this switching signal sequence is pre-Is implemented as a high pass filtered white noise signal digitized prior to the period T. The switching signal sequence is used for switching purposes 206, for example, to switch between two information signals 201,207.