US patent No.: 6,208,598 (www.freepatentsonline.com) says:
“Regarding information recorded in a data section, standard 908 dictates that where the P-channel=0 the digital audio information may be passed to a digital-to-analog converter for output via a speaker, and where the P-channel=1 it may not.”
I’m very confused after reading this… and I think that patent can’t be implemented as described. What do you say? Could P work as a concealment flag?
Thanks in advance.